Microcontroller PIC18F2550, PIC18F2550 Pins, PIC18F2550 Datasheet and Programming [Video]
32KB 16K x 16 FLASH PIC 8-Bit Microcontroller PIC® 18F Series PIC18F2550 28 Pin 48MHz 5V 28-DIP (0.300, 7.62mm)









32KB 16K x 16 FLASH PIC 8-Bit Microcontroller PIC® 18F Series PIC18F2550 28 Pin 48MHz 5V 28-DIP (0.300, 7.62mm)
PIC18F2550 is a High-Performance, Enhanced flash, USB Microcontroller with NANO-Watt-Technology. This article is going to explain pins, datasheet pdf, programming, features, and other details about the PIC18F2550 USB microcontroller.

How to program PIC18F | Blinking an LED step by step
- What is PIC18F2550?
- PIC18F2550 Pinout
- PIC18F2550 CAD Model
- Specifications
- PIC18F2550 Features
- PIC18F2550 Replacements
- PIC18F2550 Applications
- How to Use PIC18F2550?
- PIC18F2550 Programming
- SPI Communication PIC18F2550
- Parts with Similar Specs
- PIC18F2550 Package Dimensions
- PIC18F2550 Manufacturer
- Trend Analysis
- Datasheet PDF
What is PIC18F2550?
PIC18F2550 is a High-Performance, Enhanced flash, USB Microcontroller with NANO-Watt-Technology. PIC18F2550 microcontroller is an 8-bit microcontroller designed by MICROCHIP. It is one of the cheapest microcontrollers of the PIC18FXXXX series. It is popular due to its performance, cheapness, and multiple features.
PIC18F2550 Pinout
Because a controller has so many features, the manufacturer cannot offer I/O pins for all of them. Many of the controller's pins have numerous functions. By default, these functionalities are turned off; however, they can be turned on through programming. Each pin's function will be briefly described below.

PIC18F2550 Pinout
| Pin Number | Pin Name | Description |
| 1 | MCLR/VPP/RE3 | MCLR: Master Clear(RESET) Input VPP: programming voltage input RE3: I/O pin of PORTE, PIN 3 |
| 2 | RA0/AN0 | RA0: I/O pin of PORTA, PIN 0 AN0: Analog input 0 |
| 3 | RA1/AN1 | RA1: I/O pin of PORTA, PIN 1 AN1: Analog input 1 |
| 4 | RA2/AN2/VREF-/CVREF | RA2: I/O pin of PORTA, PIN 2 AN2: Analog input 2 VREF-: A/D reference voltage (low) input CVREF: Analog comparator reference output |
| 5 | RA3/AN3/VREF+ | RA3: I/O pin of PORTA, PIN 3 AN3: Analog input3 VREF+: A/D reference voltage (high) input |
| 6 | RA4/T0CKI/C1OUT/RCV | RA4: I/O pin of PORTA, PIN 4 T0CKI: Timer0 external clock input C1OUT: Comparator 1 output RCV: External USB transceiver RCV input |
| 7 | RA5/AN4/SS/HLVDIN/C2OUT | RA5: I/O pin of PORTA, PIN 5 AN4: Analog input 4 SS: SPI slave select input HLDVIN: High/Low-Voltage Detect input C2OUT: Comparator 2 output |
| 8 | VSS | Ground |
| 9 | OSC1/CLKI | OSC1:Oscillator pin 1 CLKI: External clock source input |
| 10 | OSC2/CLKO/RA6 | OSC2: Oscillator pin 2 CLKO: clock source output RA6: I/O pin of PORTA, PIN 6 |
| 11 | RC0/T1OSO/T13CKI | RC0: I/O pin of PORTC, PIN 0 T1OSO: Timer1 oscillator output T13CKI: Timer1/Timer3 external clock input |
| 12 | RC1/T1OSI/CCP2/UOE | RC1: I/O pin of PORTC, PIN 1 T1OSI: Timer1 oscillator input CCP2:Capture 2 input/Compare 2 output/PWM2 output UOE: External USB transceiver OE output |
| 13 | RC2/CCP1 | RC2: I/O pin of PORTC, PIN 2 CCP1: Capture 1 input/Compare 1 output/PWM1 output. |
| 14 | VUSB | VUSB: Internal USB 3.3V voltage regulator output |
| 15 | RC4/D-/VM | RC4: I/O pin of PORTC, PIN 4 D-: USB differential minus line (input/output) VM: External USB transceiver VM input |
| 16 | RC5/D+/VP | RC5: I/O pin of PORTC, PIN 5 D+: USB differential plus line (input/output). VP: External USB transceiver VP input |
| 17 | RC6/TX/CK | RC6: I/O pin of PORTC, PIN 6 TX: EUSART asynchronous transmit CK: EUSART synchronous clock (see RX/DT). |
| 18 | RC7/RX/DT/SDO | RC7: I/O pin of PORTC, PIN 7 RX: EUSART asynchronous receive DT: EUSART synchronous data (see TX/CK). SDO: SPI data out |
| 19 | VSS | Ground |
| 20 | VDD | Positive Power Supply (+5V) |
| 21 | RB0/AN12/INT0/FLT0/SDI/SDA | RB0: I/O pin of PORTB, PIN 0 AN12: Analog input 12 INT0: External interrupt 0 FLT0: Enhanced PWM Fault input (ECCP1 module) SDI: SPI data in SDA: I2C data I/O |
| 22 | RB1/AN10/INT1/SCK/SCL | RB1: I/O pin of PORTB, PIN 1 AN10: Analog input 10 INT1: External interrupt 1 SCK: Synchronous serial clock input/output for SPI mode SCL: Synchronous serial clock input/output for I2C mode |
| 23 | RB2/AN8/INT2/VMO | RB2: I/O pin of PORTB, PIN 2 AN8: Analog input 8 INT2: External interrupt 2 VMO: External USB transceiver VMO output |
| 24 | RB3/AN9/CCP2/VPO | RB3: I/O pin of PORTB, PIN 3 AN9: Analog input 9 CCP2: Capture 2 input/Compare 2 output/PWM2 output VPO: External USB transceiver VPO output |
| 25 | RB4/AN11/KBI0 | RB4: I/O pin of PORTB, PIN 4 AN11: Analog input 11 KBI0: Interrupt-on-change pin |
| 26 | RB5/KBI1/PGM | RB5: I/O pin of PORTB, PIN 5 KBI1: Interrupt-on-change pin PGM: Low-Voltage ICSP Programming enable pin |
| 27 | RB6/KBI2/PGC | RB6: I/O pin of PORTB, PIN 6 KBI2: Interrupt-on-change pin PGC: In-Circuit Debugger and ICSP programming clock pin. |
| 28 | RB7/KBI3/PGD | RB7: I/O pin of PORTB, PIN 7 KBI3: Interrupt-on-change pin PGD: In-Circuit Debugger and ICSP programming data pin. |
PIC18F2550 CAD Model

PIC18F2550 Symbol

PIC18F2550 Footprint
Specifications
- TypeParameter
- Factory Lead Time2 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.
Through Hole - 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.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
28-DIP (0.300, 7.62mm) - Number of Pins28
- Weight9.071847g
- Data ConvertersA/D 10x10b
- Number of I/Os24
- 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.
Tube - 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.
PIC® 18F - Published2004
- 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.
e3 - Pbfree Code
The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.
yes - 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 Terminations28
- 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.
Matte Tin (Sn) - annealed - Max Power Dissipation
The maximum power that the MOSFET can dissipate continuously under the specified thermal conditions.
1W - 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 - 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.
5V - 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.
48MHz - 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.
PIC18F2550 - Pin Count
a count of all of the component leads (or pins)
28 - Supply Voltage-Max (Vsup)
The parameter "Supply Voltage-Max (Vsup)" in electronic components refers to the maximum voltage that can be safely applied to the component without causing damage. It is an important specification to consider when designing or using electronic circuits to ensure the component operates within its safe operating limits. Exceeding the maximum supply voltage can lead to overheating, component failure, or even permanent damage. It is crucial to adhere to the specified maximum supply voltage to ensure the reliable and safe operation of the electronic component.
5.5V - 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, SPI, UART, USART, USB - Memory Size
The memory capacity is the amount of data a device can store at any given time in its memory.
32kB - Oscillator Type
Wien Bridge Oscillator; RC Phase Shift Oscillator; Hartley Oscillator; Voltage Controlled Oscillator; Colpitts Oscillator; Clapp Oscillators; Crystal Oscillators; Armstrong Oscillator.
Internal - Nominal Supply Current
Nominal current is the same as the rated current. It is the current drawn by the motor while delivering rated mechanical output at its shaft.
1.1mA - 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.
2K 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.
4.2V~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 - Number of Bits8
- 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.
PIC - 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, HLVD, 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.
32KB 16K x 16 - 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, SPI, UART/USART, USB - 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 - Access Time
Access time in electronic components refers to the amount of time it takes for a system to retrieve data from memory or storage once a request has been made. It is typically measured in nanoseconds or microseconds and indicates the speed at which data can be accessed. Lower access time values signify faster performance, allowing for more efficient processing in computing systems. Access time is a critical parameter in determining the overall responsiveness of electronic devices, particularly in applications requiring quick data retrieval.
48 μs - 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/Counters4
- Address Bus Width
A computer system has an address bus with 8 parallel lines. This means that the address bus width is 8 bits.
8b - Density
In electronic components, "Density" refers to the mass or weight of a material per unit volume. It is a physical property that indicates how tightly packed the atoms or molecules are within the material. The density of a component can affect its performance and characteristics, such as its strength, thermal conductivity, and electrical properties. Understanding the density of electronic components is important for designing and manufacturing processes to ensure optimal performance and reliability.
256 kb - 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.
256 x 8 - CPU Family
CPU Family refers to a classification of microprocessors that share a common architecture and design traits. It signifies a group of processors that are typically produced by the same manufacturer and have similar functionality and features. The CPU Family can encompass various models that may differ in performance, power consumption, and specific capabilities but retain a unified core design, allowing for compatibility with software and hardware. This classification helps users and developers to understand the performance characteristics and upgrade pathways of different CPU models within the same family.
PIC - Number of A/D Converters1
- Number of ADC Channels10
- Number of PWM Channels2
- Height3.81mm
- Length35.56mm
- Width7.493mm
- REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - 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
PIC18F2550 Features
| CPU | 8-bit |
| Total Number of Pins | 28 |
| Operating Voltage | '+4.0 to +5.5 V (+5.5V being absolute maximum) |
| Number of programmable I/O pins | 24 |
| ADC Module | 10channels, 10-bit resolution ADC |
| Timer Module | One8-bit counter, Three16-bit counter |
| Analog Comparators | 2 |
| PWM channels | 2 |
| External Oscillator | Up to 48MHz |
| Internal Oscillator | 32KHz-8MHz Calibrated Internal Oscillator |
| Program memory Type | Flash |
| Program memory / Flash memory | 32Kbytes[10000 write/erase cycles] |
| CPU Speed | 12 MIPS |
| RAM | 2KBytes |
| EEPROM memory | 256Bytes |
| Watchdog Timer | Programmable Watchdog Timer with Separate On-chip oscillator |
| Power Save Modes | Available |
| Operating Temperature | -40°C to +85°C(+85 being absolute maximum, -40 being the absolute minimum) |
PIC18F2550 Replacements
PIC18F2455, PIC18F4455, PIC18F4550
PIC18F2550 Applications
It is used with those devices which required an interface with a PC.
Most of the smart application uses PIC18F2550 because it fills almost all the communication protocol of most of the applications.
How to Use PIC18F2550?
The PIC18F2550 is used in the same way as any other microcontroller, Microcontrollers are not like digital ICs, which require only the connection of electricity to function. Before getting the chip to work, the microcontroller has to be programmed. To get the PIC18F2550 to work, we must first save the correct software file to the controller's FLASH memory. Once the controller receives power, it runs the code stored in FLASH memory to generate the answer.
PIC18F2550 Programming
List the functions to be executed by PIC18F2550
Write these functions in ‘IDE software’ using a supported programming language
(MPLAB IDE for Windows OS [www.microchip.com/mplabx-ide-windows-installer ] )
(For these MPLAB IDE you can use ‘C’ language to write the application program)
After writing the desired program compile for error elimination using IDE.
After successful compilation IDE application generates a HEX file for the written program.
Choose the programming device (usually ‘PIC kit 3’) which establishes communication between PC and PIC18F2550.
Run the HEX file dumping software which is related to the chosen programming device.
Choose the appropriate program HEX file.
Burn the HEX file (generated for the written program) in PIC18F2550 flash memory using this program.
Disconnect the programmer and connect the appropriate peripherals for the controller.
SPI Communication PIC18F2550
The controller sometimes requires external modules to perform communication, and some of them use the SPI communication method. It is known as a three-wire communication system that uses two data wires, one clock pulse wire, and a third wire known as slave select, which is used in the case of multiple peripherals. SPI pins on PIC18F2550 are:
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsData Bus WidthNumber of I/OInterfaceMemory SizeSupply VoltagePeripheralsView Compare
PIC18F2550-I/SP
28-DIP (0.300, 7.62mm)
28
8 b
24
I2C, SPI, UART, USART, USB
32 kB
5 V
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
28-DIP (0.300, 7.62mm)
28
8 b
25
I2C, SPI, UART, USART
32 kB
5 V
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
28-DIP (0.300, 7.62mm)
28
8 b
24
I2C, SPI, UART, USART, USB
24 kB
5 V
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
28-DIP (0.300, 7.62mm)
28
8 b
24
I2C, SPI, UART, USART, USB
24 kB
5 V
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
PIC18F2550 Package Dimensions

PIC18F2550 Package Dimensions
PIC18F2550 Manufacturer
Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.
Trend Analysis
Datasheet PDF
- Datasheets :
- PCN Assembly/Origin :
- PCN Packaging :
- ConflictMineralStatement :
What is the use of PIC18F2550?
It is known as in-circuit serial programming, which uses a special programming circuit designed by the company to MICROCHIP to program the microcontroller using the HEX file of the program.
How many timers are available in PIC18 microcontroller?
A PIC18 microcontroller may have up to 5 timers: Timer0…Timer 4. - Timer0, Timer1, and Timer3 are 16-bit timers whereas Timer2 and Timer4 are 8-bit. - When a timer rolls over, an interrupt may be generated if it is enabled.
What is the voltage of PIC18F2550?
Its operating voltage is +4.0 to +5.5 V.
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