Part Number: PIC16F877A-I/P

Manufacturer: Microchip Technology

Description: IC MCU 8BIT 14KB FLASH 40DIP

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of PIC16F877A-I/P

Datasheet  PIC16F877A-I/P datasheet
Category Integrated Circuits (ICs)
Family Embedded – Microcontrollers
Manufacturer Microchip Technology
Series PIC? 16F
Packaging Tube
Part Status Not For New Designs
Core Processor PIC
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 33
Program Memory Size 14KB (8K x 14)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 368 x 8
Voltage – Supply (Vcc/Vdd) 4 V ~ 5.5 V
Data Converters A/D 8x10b
Oscillator Type External
Operating Temperature -40°C ~ 85°C (TA)
Package / Case 40-DIP (0.600″, 15.24mm)
Supplier Device Package 40-PDIP


The PIC16F877A-I/P Microcontroller IC is a stalwart of innovation and versatility in the world of microcontrollers and embedded systems. This comprehensive guide serves as a portal to comprehending the essence of this incredible technology, diving into its capabilities, applications, and vital role in the world of electronics.

The PIC16F877A-I/P Microcontroller IC: A Marvel of Microelectronics

The PIC16F877A-I/P is an 8-bit microcontroller, a little yet powerful silicon brain at the heart of numerous electrical marvels. It is well-known for its outstanding performance, dependability, and ease of use, making it a popular option among engineers, hobbyists, and electronics enthusiasts all over the world.

Key Features that Define Excellence

The PIC16F877A-I/P has a plethora of characteristics that set it different from other microcontrollers. These include a reliable 20MHz clock frequency, a large 14KB Flash program memory (capable of storing 8,192 instructions), and a versatile set of 40 input/output connections. It also has a variety of peripherals including as timers, PWM modules, and analog-to-digital conversion interfaces.

Why the PIC16F877A-I/P Matters

When considering its ubiquity and adaptability, the relevance of the PIC16F877A-I/P Microcontroller IC becomes clear. It serves as the foundation for a wide range of embedded systems and projects, from simple sensor interfaces to large automation systems. It has a wide range of applications, including industrial control, IoT applications, robots, and educational platforms.

Specifications of the PIC16F877A-I/P Microcontroller IC

Architecture: 8-bit

The PIC16F877A-I/P uses an 8-bit microcontroller architecture that provides a good blend of performance and resource efficiency for a variety of embedded applications.

Clock Frequency: 20MHz

The microcontroller operates at a maximum clock frequency of 20 megahertz (MHz), providing for quick instruction execution and efficient data processing.

Program Memory (Flash): 14KB (8K x 14)

The PIC16F877A-I/P has a 14 KB Flash program memory that can hold up to 8,192 program instructions. User-written code is saved and executed in this Flash memory.

RAM Size

The microcontroller has 368 bytes of Random Access Memory (RAM). During program execution, RAM is utilized to store data and temporary variables.

Input/Output Pins: 40

The PIC16F877A-I/P has 40 input/output (I/O) pins, allowing for the connection of external devices, sensors, and interfaces. These pins can be programmed to perform a variety of tasks, including digital I/O, analog input, and communication interfaces.

Peripherals and Communication Interfaces

The microcontroller includes a plethora of peripherals and communication interfaces, including:

  • Timers: A series of timers for precise timing control.
  • PWM (Pulse Width Modulation): PWM modules that generate analog-like signals.
  • Analog-to-Digital Converter (ADC): An ADC that is built into the device to convert analog signals to digital data.
  • Serial communication interfaces include the UART (Universal Asynchronous Receiver-Transmitter) module, SPI (Serial Peripheral Interface), and I2C (Inter-Integrated Circuit).
  • Interrupts: Hardware and software interrupt capabilities for dealing with events and responding in real time.
  • Modules for Capture/Compare/PWM (CCP): For advanced control applications.
  • For serial transmission, use the Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART).
  • Brownout Reset (BOR) and Low Voltage Detect (LVD): Used to monitor power supplies and ensure system reliability.
  • Watchdog Timer (WDT): Used to reset the system in the event of a software or hardware failure.

Because of these specs, the PIC16F877A-I/P Microcontroller IC is a versatile and powerful option for a wide range of embedded systems, allowing developers to design applications that require efficient processing, precise timing, and various input/output capabilities.

Key Features of the PIC16F877A-I/P Microcontroller IC

● Flash Memory for Program Storage

The PIC16F877A-I/P has 14KB of Flash program memory, which is plenty for storing computer code. This Flash memory enables the microcontroller to be easily reprogrammed, allowing for iterative development and software updates.

● EEPROM for Data Storage

This microcontroller features 256 bytes of Electrically Erasable Programmable Read-Only Memory (EEPROM) in addition to program memory. EEPROM is useful for storing non-volatile data that must be kept even when power is turned off, such as configuration settings or calibration data.

● Various I/O Pins and Ports:

This microcontroller features 256 bytes of Electrically Erasable Programmable Read-Only Memory (EEPROM) in addition to program memory. EEPROM is useful for storing non-volatile data that must be kept even when power is turned off, such as configuration settings or calibration data.

● Analog-to-Digital Conversion (ADC) Capabilities

A 10-bit Analog-to-Digital Converter (ADC) is included within the microcontroller. It can read analog signals from sensors and transducers and transform them to digital data for processing thanks to this functionality. It is extremely useful in applications requiring precise analog measurements.

● Timers and PWM Modules

Multiple timers and Pulse Width Modulation (PWM) modules are included in the PIC16F877A-I/P microcontroller. Timers offer accurate timing control for a variety of activities, whereas PWM modules generate analog-like signals suitable for motor control, LED dimming, and other applications.

● Serial Communication Interfaces (UART, SPI, I2C):

Built-in serial interfaces facilitate communication. It has an asynchronous serial communication Universal Asynchronous Receiver-Transmitter (UART) as well as synchronous serial communication Serial Peripheral Interface (SPI) and Inter-Integrated Circuit (I2C) interfaces. These interfaces allow data to be exchanged with external devices such as sensors and other microcontrollers.

● Interrupt Handling:

The microcontroller can respond quickly to specific events or conditions because it supports both hardware and software interrupts. Interrupts are required for real-time applications that require quick attention, such as sensor inputs or precise timing events.

These fundamental properties, when combined, enable developers to create sophisticated embedded systems and applications. The PIC16F877A-I/P Microcontroller IC provides the capabilities needed for diverse and efficient microcontroller-based projects, whether it’s reading analog sensors, interacting with other devices, or maintaining precise timing.


  • Embedded systems
  • IoT projects
  • Robotics
  • Automation and control systems
  • Sensor interfacing
  • Data logging


Finally, the PIC16F877A-I/P Microcontroller IC is a shining example of microelectronics innovation and problem-solving. Its wide range of applications, from industrial automation to IoT, robotics, and educational platforms, highlights its relevance as a versatile and dependable tool for both creators and innovators.

The PIC16F877A-I/P stays a loyal companion as you embark on your adventure into the intriguing world of microcontrollers and embedded systems, ready to empower your ideas and bring them into reality. Its ongoing relevance and versatility make it a symbol of field brilliance.

Contact ICRFQ, a reputable Chinese electronic component wholesaler, to obtain this outstanding microcontroller. Take action immediately and make your ideas a reality with the ICRFQ PIC16F877A-I/P Microcontroller IC. Innovation is on the way.

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