STM8S103F3P6 vs ATtiny85: Which Microcontroller to Choose
8KB 8K x 8 FLASH STM8 8-Bit Microcontroller STM8S Series STM8S103 20 Pin 16MHz 3.3V 20-TSSOP (0.173, 4.40mm Width)









8KB 8K x 8 FLASH STM8 8-Bit Microcontroller STM8S Series STM8S103 20 Pin 16MHz 3.3V 20-TSSOP (0.173, 4.40mm Width)
Compare STM8S103F3P6 vs ATtiny85 for embedded systems in 2025. Discover differences in I/O, power efficiency, memory, and use cases for smarter designs.
Product Introduction
When choosing a microcontroller for your project, understanding its specifications and performance is crucial. The STM8S103F3P6 and ATtiny85 stand out as popular options for embedded systems, but their differences go beyond technical details. The STM8S103F3P6 offers robust performance and versatile features, while the ATtiny85 focuses on simplicity and power efficiency. Comparing these two MCUs reveals how cost, memory, and I/O capabilities impact their suitability for different applications. In 2025, this comparison matters more than ever as embedded systems evolve toward smarter and more energy-efficient designs.
STM8S103F3P6 Overview
Specifications
The STM8S103F3P6 microcontroller offers a balance of performance and cost, making it a popular choice for various applications. Its technical specifications are as follows:
| Specification | Value |
|---|---|
| Memory Size | 8KB |
| RAM Size | 1KB |
| Core Size | 8-bit |
| Operating Voltage | 2.95V-5.5V |
| Number of I/Os | 16 |
| Communication Interfaces | I2C, SPI, UART/USART, LINbus, SWIM |
| ADC | Yes |
| Program Memory Size | 8KB x 8 x 16 |
| Number of PWM Channels | 3 |
| Operating Temperature | -40°C~85°C TA |
This microcontroller supports a wide range of communication protocols, including SPI, I2C, and UART, which makes it versatile for embedded systems. Its 8-bit core and 16 I/O pins provide sufficient flexibility for small to medium-scale projects.
Features
The STM8S103F3P6 stands out due to its compact design and robust features. It comes in a Thin Shrink Small Outline Package (TSSOP) with 20 pins, making it suitable for space-constrained designs. Key features include:
Energy-saving modes: Idle and sleep modes help reduce power consumption in low-power applications.
High-frequency operation: The MCU operates at up to 16 MHz, ensuring reliable performance for time-sensitive tasks.
Integrated ADC: A 10-bit ADC with 5 channels supports analog signal processing.
Multiple communication protocols: SPI, I2C, and UART interfaces enable seamless integration with other devices.
The STM8S103F3P6 also features a small pin spacing of 0.5mm or 0.65mm, which is ideal for high-frequency applications. Its surface mount technology ensures durability and reliability in demanding environments.
Use Cases
This microcontroller is well-suited for a variety of applications. Its low cost and versatile features make it a favorite for hobbyists and professionals alike. Common use cases include:
Home automation: Control systems for lighting, fans, and other appliances.
Industrial automation: Monitoring and controlling machinery in factories.
Consumer electronics: Devices like remote controls, toys, and small gadgets.
Educational projects: Ideal for students learning about microcontrollers and embedded systems.
The STM8S103F3P6 excels in scenarios where cost-effectiveness and moderate performance are priorities. Its ability to handle multiple communication protocols and analog inputs makes it a reliable choice for diverse projects.
ATtiny85 Overview
Specifications
The ATtiny85 is a compact yet powerful microcontroller designed for low-power applications. Its technical specifications make it a popular choice for embedded systems requiring efficiency and versatility. Below is a detailed breakdown:
| Specification | Detail |
|---|---|
| Flash Memory | 8KB |
| SRAM | 512 Bytes |
| EEPROM | 512 Bytes |
| I/O Pins | 6 |
| PWM Channels | 4 |
| ADC Channels | 4 (10-bit resolution) |
| Clock Speed | Up to 20 MHz |
| Operating Voltage | 2.7V - 5.5V |
| Temperature Range | -40°C to +85°C |
This microcontroller operates efficiently across a wide voltage range and temperature spectrum, making it suitable for diverse environments. Its 8-bit AVR core ensures reliable performance for small-scale projects.
Features
The ATtiny85 offers a range of features that enhance its functionality and adaptability. Key highlights include:
High Performance, Low Power Design: Its advanced RISC architecture ensures efficient operation while minimizing power consumption.
Non-volatile Memory: With 8KB of flash memory and 512 bytes each of SRAM and EEPROM, it supports both program storage and data retention.
Versatile ADC Capabilities: The 10-bit ADC includes four single-ended channels and two differential pairs with programmable gain, ideal for precision measurements.
PWM Outputs: Two high-frequency PWM outputs with separate compare registers enable precise control in motor and LED applications.
Compact Size: Its small form factor allows it to fit into space-constrained designs.
The ATtiny85 also supports SPI and I2C communication protocols, making it easy to interface with other devices in your embedded projects.
Use Cases
The ATtiny85 excels in applications where size, power efficiency, and versatility are critical. Common use cases include:
Battery-Powered Devices: Its low-power design makes it ideal for wearables, remote sensors, and portable gadgets.
Precision Sensing: The 10-bit ADC supports applications like temperature monitoring and light intensity measurement.
Motor Control: With multiple PWM channels, it can handle motor speed and direction control effectively.
Educational Projects: Its simplicity and affordability make it a favorite for students and hobbyists.
IoT Devices: Its ability to interface with sensors and communicate via SPI or I2C makes it a strong candidate for IoT applications.
The ATtiny85 balances cost and performance, making it a versatile choice for both beginners and professionals in the microcontroller space.
Comparing STM8S103F3P6 and ATtiny85
Performance
When evaluating the performance of a microcontroller, you need to consider factors like clock speed, instruction cycle efficiency, and real-world task execution. The STM8S103F3P6 operates at a maximum clock speed of 16 MHz, while the ATtiny85 can reach up to 20 MHz. However, clock speed alone does not define performance. The STM8S103F3P6 benefits from its robust instruction set and efficient architecture, making it suitable for tasks requiring precise timing and multitasking. On the other hand, the ATtiny85 excels in simpler applications where raw speed is less critical.
Empirical testing highlights how different MCUs perform under similar conditions. For example, the STM8 microcontroller achieves 79 instruction cycles, which is competitive compared to other MCUs in its class. This efficiency ensures reliable performance in embedded systems where timing is crucial. Below is a table summarizing cycle counts and other metrics for various microcontrollers:
| Microcontroller | Cycle Counts | Flash Memory Size | Power Consumption |
|---|---|---|---|
| ST STM8 | 79 Cycles | 1903 Bytes | 6% |
| Atmel tinyAVR | 36 Cycles | 962 Bytes | 6% |
| Microchip PIC32MM | 29 Cycles | 3904 Bytes | 12% |
| Renesas RL78 | 15 Cycles | 1118 Bytes | 11% |
The STM8S103F3P6 offers consistent performance across a range of applications, while the ATtiny85 focuses on simplicity and low-latency tasks. Your choice depends on whether your project demands high-speed processing or basic functionality.
Power Efficiency
Power efficiency plays a critical role in determining the suitability of an MCU for low-power applications. The STM8S103F3P6 includes energy-saving modes like idle and sleep, which reduce power consumption during inactivity. This makes it a strong contender for projects requiring moderate power management. The ATtiny85, however, is specifically designed for low-power environments. Its advanced RISC architecture minimizes energy usage, making it ideal for battery-powered devices.
In terms of operating voltage, both microcontrollers support a wide range. The STM8S103F3P6 operates between 2.95V and 5.5V, while the ATtiny85 functions within a slightly narrower range of 2.7V to 5.5V. This flexibility allows both MCUs to adapt to various power sources. If your project prioritizes extended battery life, the ATtiny85 might be the better choice. For applications requiring a balance between power efficiency and performance, the STM8S103F3P6 offers a compelling option.
Memory
Memory capacity directly impacts the complexity of applications you can develop with a microcontroller. Both the STM8S103F3P6 and ATtiny85 feature 8KB of flash memory, which is sufficient for small to medium-sized programs. However, the STM8S103F3P6 provides 1KB of RAM, doubling the 512 bytes available in the ATtiny85. This additional RAM allows the STM8S103F3P6 to handle more data-intensive tasks and multitasking scenarios.
The ATtiny85 compensates for its limited RAM with 512 bytes of EEPROM, enabling non-volatile data storage. This feature is particularly useful for applications requiring data retention after power loss. The STM8S103F3P6, while lacking dedicated EEPROM, can emulate similar functionality using its flash memory. If your project involves frequent data logging or parameter storage, the ATtiny85's EEPROM might give it an edge.
I/O Capabilities
When comparing the I/O capabilities of the STM8S103F3P6 and ATtiny85, you’ll notice significant differences that can influence your choice of microcontroller. The STM8S103F3P6 offers 16 I/O pins, while the ATtiny85 provides only 6. This difference makes the STM8S103F3P6 more suitable for applications requiring multiple input and output connections, such as controlling multiple sensors or actuators.
The STM8S103F3P6 also supports a broader range of communication protocols, including I2C, SPI, and UART. These features allow you to connect it to various peripherals, such as displays, memory modules, or other MCUs. In contrast, the ATtiny85 supports SPI and I2C but lacks the UART interface, which limits its versatility in certain embedded systems.
Both microcontrollers include PWM channels, but the ATtiny85 has a slight edge here with 4 channels compared to the STM8S103F3P6’s 3. If your project involves motor control or LED dimming, the ATtiny85 might be a better fit. However, the STM8S103F3P6 compensates with its higher number of ADC channels (5 compared to the ATtiny85’s 4), making it more suitable for projects requiring multiple analog inputs.
Choosing the Right Microcontroller for Embedded Systems in 2025
Application-Specific Recommendations
Selecting an MCU for your project depends on the specific requirements of your application. Both the STM8S103F3P6 and ATtiny85 offer unique features that cater to different needs. Here's how you can decide which one suits your project:
For Low-Power Embedded Devices
If your project involves battery-powered devices like wearables or remote sensors, the ATtiny85 is a strong choice. Its low-power design and efficient power management make it ideal for applications where energy efficiency is critical.For Applications Requiring Multiple I/O Connections
The STM8S103F3P6, with its 16 I/O pins, is better suited for projects that need to interface with multiple sensors or actuators. For example, industrial automation systems often require numerous input and output connections, making this microcontroller a better fit.For Cost-Sensitive Projects
When cost is a primary concern, the STM8S103F3P6 offers excellent value. Its combination of features and affordability makes it a popular choice for educational projects and consumer electronics.For Precision Sensing and Control
The ATtiny85 excels in applications requiring precise analog-to-digital conversion or PWM control. This makes it a great option for motor control, LED dimming, or environmental monitoring systems.For Versatile Communication Needs
If your project demands multiple communication protocols, the STM8S103F3P6 is the better option. Its support for I2C, SPI, UART, and LINbus ensures seamless integration with various peripherals.
By understanding your project's specific needs, you can make an informed decision. Whether you're programming STM8 microcontrollers for industrial automation or using the ATtiny85 for IoT devices, aligning the MCU's features with your application ensures optimal performance.
Trends in Embedded Systems
The embedded systems landscape is evolving rapidly, driven by advancements in technology and market demands. Here are some key trends shaping the future of microcontroller selection:
IoT and Edge Computing
The rise of IoT technologies has increased the demand for energy-efficient, high-performance microcontrollers. Devices like the STM8S103F3P6 and ATtiny85 are well-suited for IoT applications, but future MCUs will likely integrate even more advanced features to handle edge computing tasks.Market Growth and Innovation
The global microcontroller market is projected to grow significantly, reaching $57.25 billion by 2030. This growth is fueled by sectors like automotive, consumer electronics, and industrial automation. New architectures like RISC-V are also transforming the industry by enabling cost-effective and customizable MCU designs.
| Evidence Type | Description |
|---|---|
| Market Growth | Steady growth due to demand in automotive, consumer electronics, and more. |
| IoT Influence | Enhanced MCUs focusing on energy efficiency and processing capabilities. |
| New Product Launches | Innovations like ultra-low-power MCUs for industrial and IoT applications. |
| RISC-V Adoption | Customizable designs enhancing market flexibility. |
| AI Integration | Essential for high-performance applications. |
| Automotive Demand | Growth in electric vehicles and ADAS driving MCU demand. |
AI Integration in MCUs
AI capabilities are becoming essential for high-performance applications. Future MCUs will likely include AI processing units, enabling smarter and more efficient embedded systems.Dependence on Sensors
Embedded systems increasingly rely on sensors for data collection and operational oversight. This trend highlights the need for MCUs with robust ADC capabilities, like the STM8S103F3P6.Energy Efficiency
As the number of connected devices grows, energy-efficient MCUs will become even more critical. Both the STM8S103F3P6 and ATtiny85 already offer features that support efficient power management, but future designs will push these boundaries further.
These trends emphasize the importance of selecting an MCU that not only meets your current needs but also aligns with future technological advancements. Whether you're exploring how to select the STM microcontroller or reviewing the ATtiny85 for a specific project, staying informed about these trends will help you make better decisions.
The stm8s103f3p6 and ATtiny85 each excel in different areas, making them suitable for specific applications. The stm8s103f3p6 offers robust performance, more I/O pins, and versatile communication options, making it ideal for complex embedded systems. The ATtiny85, with its low power consumption and compact size, shines in battery-powered devices and simple designs.
Your choice of mcu should align with your project’s needs. For cost-effective and feature-rich designs, the stm8s103f3p6 is a strong contender. For energy-efficient and space-constrained projects, the ATtiny85 is a better fit. Both remain relevant in 2025 as embedded systems demand smarter and more efficient solutions.
FAQ
What are the key differences between STM8S103F3P6 and ATtiny85?
The STM8S103F3P6 offers more I/O pins (16 vs. 6), better communication options, and higher RAM (1KB vs. 512 bytes). The ATtiny85 excels in low-power applications and has built-in EEPROM for data retention. Choose based on your project’s complexity and power needs.
Can I use both microcontrollers for IoT projects?
Yes, both are suitable for IoT. The STM8S103F3P6 supports multiple communication protocols, making it ideal for complex IoT systems. The ATtiny85 works well for simpler, battery-powered IoT devices due to its low power consumption.
Which microcontroller is better for beginners?
The ATtiny85 is better for beginners. Its simplicity, affordability, and smaller pin count make it easier to learn. The STM8S103F3P6, while feature-rich, may require more experience to utilize its advanced capabilities effectively.
How do I program the STM8S103F3P6 and ATtiny85?
You can program the STM8S103F3P6 using the ST Visual Develop (STVD) IDE and a USB-to-SWIM programmer. For the ATtiny85, use the Arduino IDE or Atmel Studio with an ISP programmer. Both have active online communities for support.
Are these microcontrollers still relevant in 2025?
Absolutely! Both remain relevant due to their affordability, versatility, and compatibility with modern embedded systems. As IoT and automation grow, these microcontrollers will continue to serve as reliable options for various applications.
Specifications
- TypeParameter
- Lifecycle Status
Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.
ACTIVE (Last Updated: 7 months ago) - Factory Lead Time8 Weeks
- Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Surface Mount - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Surface Mount - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
20-TSSOP (0.173, 4.40mm Width) - Number of Pins20
- Data ConvertersA/D 5x10b
- Number of I/Os16
- Watchdog TimersYes
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~85°C TA - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tray - Series
In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.
STM8S - JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e4 - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations20
- ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - Terminal Finish
Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.
Nickel/Palladium/Gold (Ni/Pd/Au) - Max Power Dissipation
The maximum power that the MOSFET can dissipate continuously under the specified thermal conditions.
238mW - Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
DUAL - Terminal Form
Occurring at or forming the end of a series, succession, or the like; closing; concluding.
GULL WING - Peak Reflow Temperature (Cel)
Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.
260 - Supply Voltage
Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.
3.3V - Frequency
In electronic components, the parameter "Frequency" refers to the rate at which a signal oscillates or cycles within a given period of time. It is typically measured in Hertz (Hz) and represents how many times a signal completes a full cycle in one second. Frequency is a crucial aspect in electronic components as it determines the behavior and performance of various devices such as oscillators, filters, and communication systems. Understanding the frequency characteristics of components is essential for designing and analyzing electronic circuits to ensure proper functionality and compatibility with other components in a system.
16MHz - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
STM8S103 - Pin Count
a count of all of the component leads (or pins)
20 - Operating Supply Voltage
The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.
3.6V - Interface
In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.
I2C, IrDA, LIN, SPI, UART, USART - Memory Size
The memory capacity is the amount of data a device can store at any given time in its memory.
8kB - Oscillator Type
Wien Bridge Oscillator; RC Phase Shift Oscillator; Hartley Oscillator; Voltage Controlled Oscillator; Colpitts Oscillator; Clapp Oscillators; Crystal Oscillators; Armstrong Oscillator.
Internal - RAM Size
RAM size refers to the amount of random access memory (RAM) available in an electronic component, such as a computer or smartphone. RAM is a type of volatile memory that stores data and instructions that are actively being used by the device's processor. The RAM size is typically measured in gigabytes (GB) and determines how much data the device can store and access quickly for processing. A larger RAM size allows for smoother multitasking, faster loading times, and better overall performance of the electronic component. It is an important factor to consider when choosing a device, especially for tasks that require a lot of memory, such as gaming, video editing, or running multiple applications simultaneously.
1K x 8 - Voltage - Supply (Vcc/Vdd)
Voltage - Supply (Vcc/Vdd) is a key parameter in electronic components that specifies the voltage level required for the proper operation of the device. It represents the power supply voltage that needs to be provided to the component for it to function correctly. This parameter is crucial as supplying the component with the correct voltage ensures that it operates within its specified limits and performance characteristics. It is typically expressed in volts (V) and is an essential consideration when designing and using electronic circuits to prevent damage and ensure reliable operation.
2.95V~5.5V - uPs/uCs/Peripheral ICs Type
The parameter "uPs/uCs/Peripheral ICs Type" refers to the classification of various integrated circuits used in electronic devices. It encompasses microprocessors (uPs), microcontrollers (uCs), and peripheral integrated circuits that provide additional functionalities. This classification helps in identifying the specific type of chip used for processing tasks, controlling hardware, or interfacing with other components in a system. Understanding this parameter is essential for selecting the appropriate electronic components for a given application.
MICROCONTROLLER - Core Processor
The term "Core Processor" typically refers to the central processing unit (CPU) of a computer or electronic device. It is the primary component responsible for executing instructions, performing calculations, and managing data within the system. The core processor is often considered the brain of the device, as it controls the overall operation and functionality. It is crucial for determining the speed and performance capabilities of the device, as well as its ability to handle various tasks and applications efficiently. In modern devices, core processors can have multiple cores, allowing for parallel processing and improved multitasking capabilities.
STM8 - Peripherals
In the context of electronic components, "Peripherals" refer to devices or components that are connected to a main system or device to enhance its functionality or provide additional features. These peripherals can include input devices such as keyboards, mice, and touchscreens, as well as output devices like monitors, printers, and speakers. Other examples of peripherals include external storage devices, network adapters, and cameras. Essentially, peripherals are external devices that expand the capabilities of a main electronic system or device.
Brown-out Detect/Reset, POR, PWM, WDT - Program Memory Type
Program memory typically refers to flash memory when it is used to hold the program (instructions). Program memory may also refer to a hard drive or solid state drive (SSD). Contrast with data memory.
FLASH - Core Size
Core size in electronic components refers to the physical dimensions of the core material used in devices such as inductors and transformers. The core size directly impacts the performance characteristics of the component, including its inductance, saturation current, and frequency response. A larger core size typically allows for higher power handling capabilities and lower core losses, while a smaller core size may result in a more compact design but with limitations on power handling and efficiency. Designers must carefully select the core size based on the specific requirements of the application to achieve optimal performance and efficiency.
8-Bit - Program Memory Size
Program Memory Size refers to the amount of memory available in an electronic component, such as a microcontroller or microprocessor, that is used to store program instructions. This memory is non-volatile, meaning that the data stored in it is retained even when the power is turned off. The program memory size determines the maximum amount of code that can be stored and executed by the electronic component. It is an important parameter to consider when selecting a component for a specific application, as insufficient program memory size may limit the functionality or performance of the device.
8KB 8K x 8 - Connectivity
In electronic components, "Connectivity" refers to the ability of a component to establish and maintain connections with other components or devices within a circuit. It is a crucial parameter that determines how easily signals can be transmitted between different parts of a circuit. Connectivity can be influenced by factors such as the number of input and output ports, the type of connectors used, and the overall design of the component. Components with good connectivity are essential for ensuring reliable and efficient operation of electronic systems.
I2C, IrDA, LINbus, SPI, UART/USART - Bit Size
In electronic components, "Bit Size" refers to the number of bits that can be processed or stored by a particular component. A bit is the smallest unit of data in computing and can have a value of either 0 or 1. The Bit Size parameter is commonly used to describe the capacity or performance of components such as microprocessors, memory modules, and data buses. A larger Bit Size generally indicates a higher processing capability or storage capacity, allowing for more complex operations and larger amounts of data to be handled efficiently. It is an important specification to consider when selecting electronic components for specific applications that require certain levels of performance and data processing capabilities.
8 - Has ADC
Has ADC refers to the presence of an Analog-to-Digital Converter (ADC) in an electronic component. An ADC is a crucial component in many electronic devices as it converts analog signals, such as voltage or current, into digital data that can be processed by a digital system. Having an ADC allows the electronic component to interface with analog signals and convert them into a format that can be manipulated and analyzed digitally. This parameter is important for applications where analog signals need to be converted into digital form for further processing or control.
YES - DMA Channels
DMA (Direct Memory Access) Channels are a feature found in electronic components such as microcontrollers, microprocessors, and peripheral devices. DMA Channels allow data to be transferred directly between peripherals and memory without involving the CPU, thereby reducing the burden on the CPU and improving overall system performance. Each DMA Channel is typically assigned to a specific peripheral device or memory region, enabling efficient data transfer operations. The number of DMA Channels available in a system determines the concurrent data transfer capabilities and can vary depending on the specific hardware design. Overall, DMA Channels play a crucial role in optimizing data transfer efficiency and system performance in electronic devices.
NO - Data Bus Width
The data bus width in electronic components refers to the number of bits that can be transferred simultaneously between the processor and memory. It determines the amount of data that can be processed and transferred in a single operation. A wider data bus allows for faster data transfer speeds and improved overall performance of the electronic device. Common data bus widths include 8-bit, 16-bit, 32-bit, and 64-bit, with higher numbers indicating a larger capacity for data transfer. The data bus width is an important specification to consider when evaluating the speed and efficiency of a computer system or other electronic device.
8b - Number of Timers/Counters7
- EEPROM Size
EEPROM Size refers to the amount of memory capacity available in an Electrically Erasable Programmable Read-Only Memory (EEPROM) chip. This parameter indicates the total storage space in bytes or bits that can be used to store data in a non-volatile manner. The EEPROM size determines the maximum amount of information that can be written, read, and erased from the memory chip. It is an important specification to consider when selecting an EEPROM for a particular application, as it directly impacts the amount of data that can be stored and accessed by the electronic component.
640 x 8 - Number of ADC Channels5
- Number of PWM Channels3
- Number of I2C Channels1
- Height1.05mm
- Length6.6mm
- Width4.5mm
- Radiation Hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.
No - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsData Bus WidthNumber of I/OInterfaceMemory SizeSupply VoltagePeripheralsView Compare
STM8S103F3P6
20-TSSOP (0.173, 4.40mm Width)
20
8 b
16
I2C, IrDA, LIN, SPI, UART, USART
8 kB
3.3 V
Brown-out Detect/Reset, POR, PWM, WDT
20-TSSOP (0.173, 4.40mm Width)
20
8 b
16
I2C, IrDA, LIN, SPI, UART, USART
8 kB
3.3 V
Brown-out Detect/Reset, POR, PWM, WDT
20-TSSOP (0.173, 4.40mm Width)
20
8 b
16
I2C, IrDA, LIN, SPI, UART
8 kB
3.3 V
Brown-out Detect/Reset, POR, PWM, WDT
20-TSSOP (0.173, 4.40mm Width)
20
8 b
16
I2C, IrDA, LIN, SPI, UART, USART
8 kB
3.3 V
Brown-out Detect/Reset, POR, PWM, WDT
16-TSSOP (0.173, 4.40mm Width)
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-
14
-
-
3 V
LVD, POR, PWM, WDT
Datasheet PDF
- Datasheets :
STM8S103F3, STM8S103K3 Datasheet
STM8S103F3P6-STMicroelectronics-datasheet-81847843.pdf
STM8S103F3P6-STMicroelectronics-datasheet-68303035.pdf
STM8S103F3P6-STMicroelectronics-datasheet-41920992.pdf
STM8S103F3P6-STMicroelectronics-datasheet-14106934.pdf
STM8S103F3P6-STMicroelectronics-datasheet-10836731.pdf
STM8S103F3P6-STMicroelectronics-datasheet-11547810.pdf
pid_4816756_stm8s103f3p6-stmicroelectronics-datasheet-68303035.pdf
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