PIC16C773 Microchip Technology, PIC16C773 Datasheet - Page 6

• Manufacturer Part Number: PIC16C773
• Description: 28/40-Pin/ 8-Bit CMOS Microcontrollers w/ 12-Bit A/D
• Manufacturer: Microchip Technology

PIC16C77X
FIGURE 1-2:
DS30275A-page 6
OSC1/CLKIN
OSC2/CLKOUT
Low-voltage
Detect
Note 1: Higher order bits are from the STATUS register.
Program
Bus
PIC16C774 BLOCK DIAGRAM
Instruction reg
Generation
Instruction
Reference
Decode &
Precision
14
EPROM
Program
Control
Memory
Timing
4K x 14
CCP1,2
Timer0
12-bit
ADC
13
MCLR
Direct Addr
Start-up Timer
Program Counter
8 Level Stack
Watchdog
Brown-out
Power-up
Power-on
Oscillator
8
Timer
Reset
Timer
Reset
(13-bit)
Synchronous
Advance Information
V
AV
AV
Serial Port
DD
Timer1
DD
SS
, V
SS
7
RAM Addr
8
3
Data Bus
(1)
Addr MUX
Registers
W reg
256 x 8
ALU
Parallel Slave Port
RAM
File
STATUS reg
FSR reg
USART
MUX
9
8
Timer2
Indirect
Addr
8
PORTB
PORTC
PORTD
PORTE
PORTA
1999 Microchip Technology Inc.
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/AN4
RB0/INT
RB1/SS
RB2/AN8
RB3/AN9/LVDIN
RB7:RB4
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
RD7/PSP7:RD0/PSP0
RE0/AN5/RD
RE1/AN6/WR
RE2/AN7/CS
REF
REF
-/VRL
+/VRH