
• PIC16F873A
• PIC16F874A
• PIC16F876A
• PIC16F877A

28/40/44-Pin Enhanced Flash Microcontrollers

High-Performance RISC CPU:

• Only 35 single-word instructions to learn
• All single-cycle instructions except for program
  branches, which are two-cycle
• Operating speed: DC – 20 MHz clock input
  DC – 200 ns instruction cycle
• Up to 8K x 14 words of Flash Program Memory,
  Up to 368 x 8 bytes of Data Memory (RAM),
  Up to 256 x 8 bytes of EEPROM Data Memory
• Pinout compatible to other 28-pin or 40/44-pin
  PIC16CXXX and PIC16FXXX microcontrollers

Peripheral Features:

• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler,
  can be incremented during Sleep via external
  crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period
  register, prescaler and postscaler
• Two Capture, Compare, PWM modules
  - Capture is 16-bit, max. resolution is 12.5 ns
  - Compare is 16-bit, max. resolution is 200 ns
  - PWM max. resolution is 10-bit
• Synchronous Serial Port (SSP) with SPI™
  (Master mode) and I2C™ (Master/Slave)
• Universal Synchronous Asynchronous Receiver
  Transmitter (USART/SCI) with 9-bit address detection
• Parallel Slave Port (PSP) – 8 bits wide with
  external RD, WR and CS controls (40/44-pin only)
• Brown-out detection circuitry for
  Brown-out Reset (BOR)

Analog Features:

• 10-bit, up to 8-channel Analog-to-Digital
  Converter (A/D)
• Brown-out Reset (BOR)
• Analog Comparator module with:
  - Two analog comparators
  - Programmable on-chip voltage reference (VREF) module
  - Programmable input multiplexing from device
    inputs and internal voltage reference
  - Comparator outputs are externally accessible

Special Microcontroller Features:

• 100,000 erase/write cycle Enhanced Flash
  program memory typical
• 1,000,000 erase/write cycle Data EEPROM
  memory typical
• Data EEPROM Retention > 40 years
• Self-reprogrammable under software control
• In-Circuit Serial Programming™ (ICSP™)
  via two pins
• Single-supply 5V In-Circuit Serial Programming
• Watchdog Timer (WDT) with its own on-chip RC
  oscillator for reliable operation
• Programmable code protection
• Power saving Sleep mode
• Selectable oscillator options
• In-Circuit Debug (ICD) via two pins

CMOS Technology:

• Low-power, high-speed Flash/EEPROM technology
• Fully static design
• Wide operating voltage range (2.0V to 5.5V)
• Commercial and Industrial temperature ranges
• Low-power consumption
