PIC12C508A Microchip Technology, PIC12C508A Datasheet - Page 10

• Manufacturer Part Number: PIC12C508A
• Description: 8-Pin/ 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC12C5XX
FIGURE 3-1:
DS40139E-page 10
OSC1/CLKIN
OSC2
Program
Bus
PIC12C5XX BLOCK DIAGRAM
Instruction reg
ROM/EPROM
Internal RC
Generation
Instruction
512 x 12 or
Decode &
1024 x 12
Program
Memory
12
Control
Timing
OSC
8
12
MCLR
Direct Addr
Device Reset
Program Counter
Watchdog
Power-on
Timer
Reset
Timer
STACK1
STACK2
V
DD
, V
SS
5
RAM Addr
8
3
Data Bus
Addr MUX
Registers
W reg
25 x 8 or
ALU
RAM
File
STATUS reg
Timer0
FSR reg
5-7
MUX
9
Indirect
Addr
8
PIC12CE5XX
EEPROM
Memory
GPIO
16 X 8
Data
Only
1999 Microchip Technology Inc.
GP0
GP1
GP2/T0CKI
GP3/MCLR/V
GP4/OSC2
GP5/OSC1/CLKIN
PP