12F508 Microchip Technology, 12F508 Datasheet - Page 12

• Manufacturer Part Number: 12F508
• Description: Search -----> PIC12F508
• Manufacturer: Microchip Technology

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PIC12F508/509/16F505
FIGURE 3-1:
DS41236B-page 10
OSC1/CLKIN
OSC2
Program
Bus
Instruction Reg
Internal RC
Generation
Instruction
512 x 12 or
Decode &
PIC12F508/509 BLOCK DIAGRAM
1024 x 12
Program
Memory
12
Control
Timing
Flash
OSC
8
12
MCLR
Direct Addr
Device Reset
Program Counter
Watchdog
Power-on
Timer
Reset
Timer
Stack 1
Stack 2
V
DD
, V
SS
5
Preliminary
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
GPIO
© 2005 Microchip Technology Inc.
GP0/ISCPDAT
GP1/ISCPCLK
GP2/T0CKI
GP3/MCLR/V
GP4/OSC2
GP5/OSC1/CLKIN
PP