
1999 Microchip Technology Inc.
Preliminary
DS30221A-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 PIC16C72A
Interrupt capability (up to 10 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
μ
A typical @ 3V, 32 kHz
- < 1
μ
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
Synchronous Serial Port (SSP) with SPI
(Master
Mode) and I
2
C
(Master/Slave)
Brown-out detection circuitry for Brown-out Reset
(BOR)
PIC16F872
P
10
11
12
13
14
2
3
4
5
6
7
1
8
9
15
16
17
18
19
20
23
22
21
24
25
26
27
28
MCLR/V
PP
/THV
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-
RA3/AN3/V
REF
+
RA4/T0CKI
RA5/AN4/SS
V
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI
RC2/CCP1
RC3/SCK/SCL
RB7/PGD
RB6/PGC
RB5
RB4
RB3/PGM
RB2
RB1
RB0/INT
V
DD
V
SS
RC7
RC6
RC5/SDO
RC4/SDI/SDA
DIP, SOIC, SSOP
PIC16F872
28-Pin, 8-Bit CMOS FLASH Microcontroller