STM8S103F3P6 Microcontroller, STM8 Pin, and STM8S103F3P6 VS ATMEGA328P [FAQ]
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)
The STM8S103F3P6 access line 8-bit microcontrollers offer 8 Kbytes Flash program memory, plus integrated true data EEPROM. The STM8S microcontroller family reference manual (RM0016) refers to devices in this family as low-density. This article is going to introduce detailed information and a tutorial about the STM8S103F3P6 microcontroller board.

STM8S103F3P6 Programming Development Board Installation Compile And Debugging | STM8 coding tutorial
- What is STM8S103F3P6?
- STM8S103F3P6 Pinout
- STM8S103F3P6 CAD Model
- Specifications
- STM8S103F3P6 Features
- Alternatives for STM8S103F3P6
- STM8S103F3P6 Applications
- STM8S103F3P6 VS ATMEGA328P
- STM8 Microcontroller Programming
- How to select the STM Microcontroller?
- Parts with Similar Specs
- STM8S103F3P6 Package Outline
- STM8S103F3P6 Manufacturer
- Trend Analysis
- Datasheet PDF
What is STM8S103F3P6?
The STM8S access line 8-bit microcontrollers offer 8 Kbytes Flash program memory, plus integrated true data EEPROM. The STM8S microcontroller family reference manual (RM0016) refers to devices in this family as low-density.
STM8S103F3P6 microcontroller unit has 640 Bit ROM, 10-Bit 5-Channels ADC, 1kB RAM, and a program memory size of 8kB. Other than these features, it provides I2C, SPI, and UART communication support with 7 timers.
It features 1 Kbyte of RAM with 8 Kbyte of Flash memories. 2.95V to 5.5V operating voltage makes it a suitable choice for 3.3V as well as 5.0V logic level operations on both operating voltages.
STM8S103F3P6 Pinout

STM8S103F3P6 Pinout
| Pin no. | Pin name | Type | The main function (after reset) |
| TSSOP20 | |||
| 1 | PD4/ BEEP/ TIM2_ CH1/ UART1 _CK | I/O | Port D4 |
| 2 | PD5/ AIN5/ UART1 _TX | I/O | Port D5 |
| 3 | PD6/ AIN6/ UART1 _RX | I/O | Port D6 |
| 4 | NRST | I/O | Reset |
| 5 | PA1/ OSCIN | I/O | Port A1 |
| 6 | PA2/ OSCOUT | I/O | Port A2 |
| 7 | VSS | S | Digital ground |
| 8 | VCAP | S | 1.8 V regulator capacitor |
| 9 | VDD | S | Digital power supply |
| 10 | PA3/ TIM2_ CH3 [SPI_ NSS] | I/O | Port A3 |
| 11 | PB5/ I2C_ SDA [TIM1_ BKIN] | I/O | Port B5 |
| 12 | PB4/ I2C_ SCL | I/O | Port B4 |
| 13 | PC3/ TIM1_CH3 [TLI] [TIM1_ CH1N] | I/O | Port C3 |
| 14 | PC4/ CLK_CCO/ TIM1_ CH4/AIN2/ [TIM1_ CH2N] | I/O | Port C4 |
| 15 | PC5/ SPI_SCK [TIM2_ CH1] | I/O | Port C5 |
| 16 | PC6/ SPI_MOSI [TIM1_ CH1] | I/O | Port C6 |
| 17 | PC7/ SPI_MISO [TIM1_ CH2] | I/O | Port C7 |
| 18 | PD1/ SWIM | I/O | Port D1 |
| 19 | PD2/AIN3/ [TIM2_ CH3] | I/O | Port D2 |
| 20 | PD3/ AIN4/ TIM2_ CH2/ ADC_ ETR | I/O | Port D3 |
STM8S103F3P6 CAD Model
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
STM8S103F3P6 Features
Core
16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline
Extended instruction set
Memories
Program memory: 8 Kbytes Flash; data retention 20 years at 55 °C after 10 kcycles
Data memory: 640 bytes true data EEPROM; endurance 300 kcycles
RAM: 1 Kbytes
Clock, reset, and supply management
2.95 to 5.5 V operating voltage
Flexible clock control, 4 master clock sources low power crystal resonator oscillatorExternal clock inputInternal, user-trimmable 16 MHz RCInternal low-power 128 kHz RC
Clock security system with clock monitor
Power management: Low-power modes (wait, active-halt, halt)Switch-off peripheral clocks individually
Permanently active, low consumption power-on and power-down reset
Interrupt management
Nested interrupt controller with 32 interrupts
Up to 27 external interrupts on 6 vectors
Timers
Advanced control timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time insertion, and flexible synchronization
16-bit general-purpose timer, with 3 CAPCOM channels (IC, OC, or PWM)
8-bit basic timer with 8-bit Prescaler
Auto wake-up timer
Window watchdog and independent watchdog timers
Communication interfaces
UART with clock output for synchronous operation, SmartCard, IrDA, LIN master mode
SPI interface up to 8 Mbit/s
I2C interface up to 400 kbit/s
Analog to digital converter (ADC)
10-bit, ±1 LSB ADC with up to 5 multiplexed channels, scan mode, and analog watchdog
I/Os
Up to 28 I/O s on a 32-pin package including 21 high sink outputs
Highly robust I/O design, immune against current injection
Unique ID
96-bit unique key for each device
Alternatives for STM8S103F3P6
PIC16LF18444T
MSP430G2353
MSP430G2553
STM8S103F3P6 Applications
Data Acquisition
Low-cost Sensor integration
Low power Embedded devices.
Small data retention related purposes
STM8S103F3P6 VS ATMEGA328P
There is no major functional difference between them except for power. This microcontroller is mostly used in Arduino's. The Atmega328 function the same as Atmega328p but the 328p has very low power consumption using the ATMEL's PicoPower Features. Hence P stands for PicoPower.
STM8 Microcontroller Programming
STM8 microcontrollers can be programmed using a variety of commercially available software. The following information pertains to STMicroelectronics ' most advanced and widely used software and compiler.
To program the STM8 microcontroller, we'll need an IDE (Integrated Development Environment), which acts as a programming environment. A compiler converts our software into HEX files, which can be read by MCUs.
IDE: ST Visual Develop
Compiler: COSMIC C Compiler
All of this software was provided by STMicroelectronics for free. They are available for download directly from their official website. For your convenience, I've also included a link. Install these on your PC once they've been downloaded. If you have any difficulties, please let us know in the comments section below.
It's simple to connect sensors or other devices to the STM8S103F3P6 microcontroller. It contains peripheral support for UART, SPI, I2C, and ADC for interfacing tasks. For connectivity and integration-related actions, any available interface can be used.
How to select the STM Microcontroller?
From the STM8 series, STMicroelectronics offers a wide range of microcontrollers, Each MCU has its own set of benefits and drawbacks. Before choosing an MCU for a project, there are several factors to consider. The following are only suggestions to aid in the selection of an MCU.
If you're new to the STM8 series of microcontrollers. choosing an MCU with solid online community assistance and a wide range of applications is a good idea. In this scenario, STM8S103F3P6 is a good option. The STM8 series has a good online support forum from STMicroelectronics.
Consider your system's operating voltage. If they're 5V, go with a 5V MCU. Some sensors and devices operate and communicate at 3.3V; hence a 3.3V MCU can be used.
If space and cost are constraints, tiny 8-pin MCUs like the STM8S001J3 can be used. These are also less expensive in comparison.
Check which MCU modules you might need based on the sensors and actuators utilized in your project. If you're reading a lot of analog voltages, for example, be sure the STM8S103F3P6 series microcontroller you choose has enough ADC channels and a high enough resolution.
If your project requires the use of communication protocols such as UART, SPI, I2C, CAN, and others, be sure your STM8 microcontroller can handle them all. Some MCUs are capable of supporting multiple modules of the same protocol.
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)
-
-
14
-
-
3 V
LVD, POR, PWM, WDT
STM8S103F3P6 Package Outline

STM8S103F3P6 Package Outline
STM8S103F3P6 Manufacturer
STMicroelectronics is a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio, and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology, and its products play a key role in enabling today's convergence trends.
Trend Analysis
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
What is the difference between atmega328 and atmega328p?
There is no major functional difference between them except for power. This microcontroller is mostly used in Arduino's. The Atmega 328 functions the same as Atmega 328p but the 328p has very low power consumption using the ATMEL's PicoPower Features. Hence P stands for PicoPower.
Why use STM8?
For commercial use, the STM8S offers some interesting advantages: Motor control: The STM8 has a strong focus on motor and position control systems. Things you need to handle yourself on an ATmega are implemented in hardware and work independently of the state of the software.
What is the meaning of 8 bit microcontroller?
8-bit microcontroller means CPU or ALU can process 8-bit data at a time. This means it has to take 8-bit data from memory (which it has to process). Thus each location in memory is 8 bit and the data bus is also 8 bit.
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