Datasheet

PIC16C71X
DS30272A-page 8  1997 Microchip Technology Inc.
FIGURE 3-1: PIC16C71X BLOCK DIAGRAM
EPROM
Program
Memory
13
Data Bus
8
14
Program
Bus
Instruction reg
Program Counter
8 Level Stack
(13-bit)
RAM
File
Registers
Direct Addr
7
RAM Addr
(1)
9
Addr MUX
Indirect
Addr
FSR reg
STATUS reg
MUX
ALU
W reg
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Instruction
Decode &
Control
Timing
Generation
OSC1/CLKIN
OSC2/CLKOUT
MCLR
VDD, VSS
Timer0
A/D
PORTA
PORTB
RB0/INT
RB7:RB1
8
8
Brown-out
Reset
(2)
Note 1: Higher order bits are from the STATUS register.
2: Brown-out Reset is not available on the PIC16C71.
Device Program Memory Data Memory (RAM)
PIC16C710
PIC16C71
PIC16C711
PIC16C715
512 x 14
1K x 14
1K x 14
2K x 14
36 x 8
36 x 8
68 x 8
128 x 8
RA4/T0CKI
RA3/AN3/VREF
RA2/AN2
RA1/AN1
RA0/AN0
8
3