The PIC16F887 is one of the most widely used 8-bit microcontrollers from Microchip’s PIC16 family — especially in education, prototyping, and industrial control.

PIC16F887 – Key Features:

• CPU Core: 8-bit RISC (PIC mid-range)
• Program Memory (Flash): 14 KB (8K words × 14 bits)
• SRAM: 368 Bytes
• EEPROM: 256 Bytes (for non-volatile storage)
• I/O Pins: 35 (in a 40-pin package)
• Operating Voltage: 2.0V – 5.5V (ideal for 5V logic)
• Clock: Internal oscillator up to 8 MHz, or external up to 20 MHz
• Instruction Speed: 200 ns per instruction at 20 MHz

On-Chip Peripherals

• Timers:
  Timer0 (8-bit)
  Timer1 (16-bit)
  Timer2 (8-bit, with prescaler/postscaler)
• ADC (Analog to Digital Converter):
  10-bit resolution, 14 input channels
• Communication Modules:
  USART (for serial RS232/TTL communication)
  I²C & SPI (for sensors, displays, external ICs)
• CCP Modules (Capture/Compare/PWM):
  Useful for motor control, servo, waveform generation
• Comparators: 2 analog comparators
• Interrupts: Multiple sources (external INT, timers, ADC, etc.)

Pin Pakege:

• PORTA (RA0–RA5): Analog inputs, digital I/O
• PORTB (RB0–RB7): Digital I/O, external interrupts
• PORTC (RC0–RC7): USART (TX/RX), I²C (SCL/SDA), SPI
• PORTD (RD0–RD7): Digital I/O (often used for LCDs)
• PORTE (RE0–RE2): Analog inputs, control signals

Application:

• Embedded control projects
• Sensor interfacing (temperature, humidity, etc.)
• Motor control with PWM
• Data logging (EEPROM + UART)
• Educational kits (traffic lights, counters, LCD/Keypad interfacing)
• Small automation projects