PIC16F877A-I/P Microcontroller MCUs/MPUs/SOCs 14KB 4V~5.5V 20MHz FLASH 33 DIP-40
The PIC16F877A-I/P is a popular 8-bit microcontroller from Microchip Technology, widely used in embedded systems and automation applications. Housed in a DIP-40 (Dual Inline Package with 40 pins), this device offers a rich set of features that make it ideal for both beginner and professional level designs.
It features 14KB of Flash program memory, 368 bytes of RAM, and 256 bytes of EEPROM, enabling storage of both application code and non-volatile data. The microcontroller operates within a voltage range of 4.0V to 5.5V and can run at clock speeds of up to 20MHz, providing a good balance between performance and power consumption.
The PIC16F877A-I/P is equipped with 33 I/O pins, making it suitable for applications that require a high number of input/output lines. Additionally, it includes a wide array of peripherals such as USART, SPI, I2C, and PWM modules, as well as 8-channel 10-bit ADC (Analog-to-Digital Converter), timers, and watchdog timers for reliability.
Its robust feature set and ease of programming using MPLAB IDE and PICkit programmers make the PIC16F877A-I/P a versatile and reliable choice for applications such as industrial control systems, robotics, home automation, and educational projects.
Pinout Configuration:
| Pin Number | Pin Name | Description |
| 1 | MCLR/Vpp | MCLR is used during programming, mostly connected to programmer like PicKit |
| 2 | RA0/AN0 | Analog pin 0 or 0th pin of PORTA |
| 3 | RA1/AN1 | Analog pin 1 or 1st pin of PORTA |
| 4 | RA2/AN2/Vref- | Analog pin 2 or 2nd pin of PORTA |
| 5 | RA3/AN3/Vref+ | Analog pin 3 or 3rd pin of PORTA |
| 6 | RA4/T0CKI/C1out | 4th pin of PORTA |
| 7 | RA5/AN4/SS/C2out | Analog pin 4 or 5th pin of PORTA |
| 8 | RE0/RD/AN5 | Analog pin 5 or 0th pin of PORTE |
| 9 | RE1/WR/AN6 | Analog pin 6 or 1st pin of PORTE |
| 10 | RE2/CS/AN7 | 7th pin of PORTE |
| 11 | Vdd | Ground pin of MCU |
| 12 | Vss | Positive pin of MCU (+5V) |
| 13 | OSC1/CLKI | External Oscillator/clock input pin |
| 14 | OSC2/CLKO | External Oscillator/clock output pin |
| 15 | RC0/T1OSO/T1CKI | 0th pin of PORT C |
| 16 | RC1/T1OSI/CCP2 | 1st pin of POCTC or Timer/PWM pin |
| 17 | RC2/CCP1 | 2nd pin of POCTC or Timer/PWM pin |
| 18 | RC3/SCK/SCL | 3rd pin of POCTC |
| 19 | RD0/PSP0 | 0th pin of POCTD |
| 20 | RD1/PSPI | 1st pin of POCTD |
| 21 | RD2/PSP2 | 2nd pin of POCTD |
| 22 | RD3/PSP3 | 3rd pin of POCTD |
| 23 | RC4/SDI/SDA | 4th pin of POCTC or Serial Data in pin |
| 24 | RC5/SDO | 5th pin of POCTC or Serial Data Out pin |
| 25 | RC6/Tx/CK | 6th pin of POCTC or Transmitter pin of Microcontroller |
| 26 | RC7/Rx/DT | 7th pin of POCTC or Receiver pin of Microcontroller |
| 27 | RD4/PSP4 | 4th pin of POCTD |
| 28 | RD5/PSP5 | 5th pin of POCTD |
| 29 | RD6/PSP6 | 6th pin of POCTD |
| 30 | RD7/PSP7 | 7th pin of POCTD |
| 31 | Vss | Positive pin of MCU (+5V) |
| 32 | Vdd | Ground pin of MCU |
| 33 | RB0/INT | 0th pin of POCTB or External Interrupt pin |
| 34 | RB1 | 1st pin of POCTB |
| 35 | RB2 | 2nd pin of POCTB |
| 36 | RB3/PGM | 3rd pin of POCTB or connected to programmer |
| 37 | RB4 | 4th pin of POCTB |
| 38 | RB5 | 5th pin of POCTB |
| 39 | RB6/PGC | 6th pin of POCTB or connected to programmer |
| 40 | RB7/PGD | 7th pin of POCTB or connected to programmer |
Features:
| CPU | 8-bit PIC |
| Number of Pins | 40 |
| Operating Voltage (V) | 4 to 5.5 V |
| Number of I/O pins | 33 |
| ADC Module | 8ch, 10-bit |
| Timer Module | 8-bit(2), 16-bit(1) |
| Comparators | 2 |
| DAC Module | Nil |
| Communication Peripherals | UART(1), SPI(1), I2C(1), MSSP(SPI/I2C) |
| External Oscillator | Up to 20Mhz |
| Internal Oscillator | Nil |
| Program Memory Type | Flash |
| Program Memory (KB) | 14KB |
| CPU Speed (MIPS) | 5 MIPS |
| RAM Bytes | 368 |
| Data EEPROM | 256 bytes |
Specifications:
| CPU | 8-bit PIC |
| Architecture | 8 |
| Program Memory Size (Kbytes) | 14 |
| RAM (bytes) | 368 |
| EEPROM/HEF | 256/HEF |
| Pin Count | 40 |
| Max. CPU Speed (MHz) | 20 |
| Peripheral Pin select (PPS) | No |
| Internal Oscillator | No |
| No. Of comparators | 2 |
| No. Of Operational Amplifier | 0 |
| No. Of ADC channels | 14 |
| Max ADC Resolution (bits) | 10 |
| ADC with Computation | No |
| Number of DAC Converter | 0 |
| Max DAC resolution | 0 |
| Internal Voltage Reference | Yes |
| Zero Cross Detect | No |
| No. Of 8-bit timers | 2 |
| No. Of 16-bit Timers | 1 |
| Signal Measurement Timer | 0 |
| Hardware Limit Timer | 0 |
| No. Of PWM outputs | 0 |
| Max PWM resolution | 10 |
| Angular Timer | No |
| Math Accelerator | No |
| No. Of UART module | 1 |
| No. Of SPI Module | 1 |
| No. Of I2C module | 1 |
| No. Of USB Module | 0 |
| Windowed Watchdog Timer (WWDT) | No |
| CRC/Scan | No |
| Numerically Controlled Oscillator | 0 |
| Cap. Touch Channels | 11 |
| Segment LCD | 0 |
| Minimum Operating Temperature (*C) | -40 |
| Maximum Operating Temperature (*C) | 125 |
| Minimum Operating Voltage (V) | 4 |
| Maximum Operating Voltage (V) | 5.5 |
| High Voltage Capable | No |
Applications:
- Multiple DIY Projects.
- Very good choice if you are learning PIC.
- Projects requiring Multiple I/O interfaces and communications.
- Replacement for Arduino Module.
- Ideal for more advanced level A/D applications in automotive, industrial, appliances and consumer applications.
Package Contents:
- 1 X PIC16F877A-I/P Microcontroller MCUs/MPUs/SOCs 14KB 4V~5.5V 20MHz FLASH 33 DIP-40
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