ª 1999 Microchip Technology Inc. Preliminary DS30569A-page 1
Devices Included in this Data Sheet:
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
•2K x 14 words of FLASH Program Memory
128 x 8 bytes of Data Memory (RAM)
64 x 8 bytes of EEPROM Data Memory
•Pinout compatible to the PIC16CXXX 28 and 40-
pin devices
•Interrupt capability (up to 11 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:
-< 1.6 mA typical @ 5V, 4 MHz
-20 m A typical @ 3V, 32 kHz
-< 1 m A typical standby current
Pin Diagram
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
•One Capture, Compare, PWM module
-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
•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)
•PIC16F870 •PIC16F871
RB7/PGD
RB6/PGC
RB5
RB4
RB3/PGM
RB2
RB1
RB0/INT
VDD
VSS
RD7/PSP7
RD6/PSP6
RD5/PSP5
RD4/PSP4
RC7/RX/DT
RC6/TX/CK
RC5
RC4
RD3/PSP3
RD2/PSP2
MCLR/VPP/THV
RA0/AN0
RA1/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI
RA5/AN4
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
VDD
VSS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI
RC2/CCP1
RC3
RD0/PSP0
RD1/PSP1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
P
I
C16F
8
7
1
PDIP
PIC16F870/871
28/40-Pin 8-Bit CMOS FLASH Microcontrollers