Microchip Technology PIC16F87X Manual

28/40-pin 8-Bit CMOS FLASH Microcontrollers
Devices Included in this Data Sheet:
• PIC16F873
• PIC16F874
Microcontroller Core Features:
• 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 the PIC16C73B/74B/76/77
• Interrupt capability (up to 14 sources)
• Eight level deep hardware stack
• Direct, indirect and relative addressing modes
• Power-on Reset (POR)
• Power-up Timer (PWRT) and
Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
• Programmable code-protection
• Power saving SLEEP mode
• Selectable oscillator options
• Low-power, high-speed CMOS FLASH/EEPROM
technology
• Fully static design
• In-Circuit Serial Programming™ (ICSP) via two
pins
• Single 5V In-Circuit Serial Programming capability
• In-Circuit Debugging via two pins
• Processor read/write access to program memory
• Wide operating voltage range: 2.0V to 5.5V
• High Sink/Source Current: 25 mA
• Commercial and Industrial temperature ranges
• Low-power consumption:
- < 2 mA typical @ 5V, 4 MHz
- 20 µA typical @ 3V, 32 kHz
- < 1 µA typical standby current
© 1999 Microchip Technology Inc.
• PIC16F876
• PIC16F877
PIC16F87X
Pin Diagram
PDIP
MCLR/V /THV 1
PP
RA0/AN0
2
RA1/AN1 3
RA2/AN2/V -
REF 4
RA3/AN3/V +
REF 5
RA4/T0CKI
6
RA5/AN4/SS 7
RE0/RD/AN5 8
RE1/WR/AN6
9
RE2/CS/AN7 10
V
DD 11
V
SS 12
OSC1/CLKIN
13
OSC2/CLKOUT
14
RC0/T1OSO/T1CKI
15
RC1/T1OSI/CCP2
16
RC2/CCP1
17
RC3/SCK/SCL 18
RD0/PSP0
19
RD1/PSP1 20
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
• 10-bit multi-channel Analog-to-Digital converter
• Synchronous Serial Port (SSP) with SPI
™
2
Mode) and I C (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)
40 RB7/PGD
RB6/PGC
39
38 RB5
37 RB4
RB3/PGM
36
RB2
35
34 RB1
33 RB0/INT
V
32
DD
31 V
SS
30 RD7/PSP7
29 RD6/PSP6
RD5/PSP5
28
RD4/PSP4
27
RC7/RX/DT
26
RC6/TX/CK
25
RC5/SDO
24
23 RC4/SDI/SDA
RD3/PSP3
22
21 RD2/PSP2
™
(Master
DS30292B-page 1