PIC16F7X
FIGURE 1-1:
PIC16F73 AND PIC16F76 BLOCK DIAGRAM
13
Program Counter
FLASH
Program
Memory
8 Level Stack
(13-bit)
Program
Bus
14
Instruction reg
Direct Addr
7
Data Bus
8
PORTA
RA0/AN0
RA1/AN1
RA2/AN2/
RA3/AN3/V
REF
RA4/T0CKI
RA5/AN4/SS
PORTB
RAM
File
Registers
RAM Addr
(1)
9
Addr MUX
8
Indirect
Addr
FSR reg
STATUS reg
8
PORTC
Power-up
Timer
Instruction
Decode &
Control
Timing
Generation
OSC1/CLKIN
OSC2/CLKOUT
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
8
W reg
3
MUX
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
ALU
MCLR
V
DD
, V
SS
Timer0
Timer1
Timer2
8-bit A/D
CCP1
CCP2
Synchronous
Serial Port
USART
Device
PIC16F73
PIC16F76
Program FLASH
4K
8K
Data Memory
192 Bytes
368 Bytes
Note 1:
Higher order bits are from the STATUS register.
DS30325B-page 6
2002 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
