pic16c61 Microchip Technology Inc., pic16c61 Datasheet - Page 10

• Manufacturer Part Number: pic16c61
• Description: 8-bit Cmos Microcontrollers Technology
• Manufacturer: Microchip Technology Inc.

PIC16C6X
FIGURE 3-1:
DS30234D-page 10
OSC1/CLKIN
OSC2/CLKOUT
Note 1: Higher order bits are from the STATUS register.
Program
Bus
PIC16C61 BLOCK DIAGRAM
Instruction reg
Generation
Instruction
Decode &
14
EPROM
Program
Control
Memory
Timing
1K x 14
8
13
MCLR
Direct Addr
Start-up Timer
Program Counter
8 Level Stack
Watchdog
Power-up
Oscillator
Power-on
Reset
Timer
Timer
(13-bit)
V
DD
, V
SS
7
RAM Addr
8
3
Data Bus
(1)
Addr MUX
Registers
W reg
ALU
36 x 8
RAM
File
STATUS reg
FSR reg
Timer0
8
MUX
9
Indirect
Addr
8
PORTB
PORTA
1997 Microchip Technology Inc.
RA0
RA1
RA2
RA3
RA4/T0CKI
RB0/INT
RB7:RB1