PIC16F7X Datasheet, PDF (8/174 Pages) Microchip Technology – 28/40-Pin 8-Bit CMOS FLASH Microcontrollers

PIC16F7X
FIGURE 1-1:
PIC16F73 AND PIC16F76 BLOCK DIAGRAM
FLASH
Program
Memory
13
Program Counter
8 Level Stack
(13-bit)
Data Bus
8
RAM
File
Registers
Program
Bus
14
Instruction reg
RAM Addr⁽¹⁾
9
Addr MUX
Direct Addr ⁷
Indirect
8 Addr
FSR reg
STATUS reg
8
Instruction
Decode &
Control
OSC1/CLKIN
OSC2/CLKOUT
Timing
Generation
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
3
MUX
ALU
8
W reg
MCLR VDD, VSS
PORTA
PORTB
PORTC
RA0/AN0
RA1/AN1
RA2/AN2/
RA3/AN3/VREF
RA4/T0CKI
RA5/AN4/SS
RB0/INT
RB1
RB2
RB3/PGM
RB4
RB5
RB6/PGC
RB7/PGD
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
Timer0
CCP1
Timer1
Timer2
8-bit A/D
CCP2
Synchronous
Serial Port
USART
Device
PIC16F73
PIC16F76
Program FLASH
4K
8K
Note 1: Higher order bits are from the STATUS register.
Data Memory
192 Bytes
368 Bytes
DS30325B-page 6
 2002 Microchip Technology Inc.