Document
PIC16F87XA
28/40/44-Pin Enhanced Flash Microcontrollers
Devices Included in this Data Sheet:
• PIC16F873A • PIC16F874A
• PIC16F876A • PIC16F877A
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
Device
Program Memory
Bytes
# Single Word Instructions
Data SRAM (Bytes)
EEPROM (Bytes)
I/O
MSSP
10-bit CCP
A/D (ch)
(PWM)
SPI
Master I2C
USART
Timers 8/16-bit
Comparators
PIC16F873A 7.2K PIC16F874A 7.2K PIC16F876A 14.3K PIC16F877A 14.3K
4096 4096 8192 8192
192 128 22 5 192 128 33 8 368 256 22 5 368 256 33 8
2 Yes Yes 2 Yes Yes 2 Yes Yes 2 Yes Yes
Yes Yes Yes Yes
2/1 2/1 2/1 2/1
2 2 2 2
2001-2013 Microchip Technology Inc.
DS39582C-page 1
PIC16F87XA
Pin Diagrams
28-Pin PDIP, SOIC, SSOP
MCLR/VPP RA0/AN0 RA1/AN1
RA2/.