PIC16F505 Microchip Technology, PIC16F505 Datasheet - Page 12

• Manufacturer Part Number: PIC16F505
• Description: (PIC1xF50x) 8-Bit Flash Microcontrollers
• Manufacturer: Microchip Technology

PIC12F508/509/16F505
FIGURE 3-1:
DS41236A-page 10
OSC1/CLKIN
OSC2
Program
Bus
Instruction reg
Internal RC
Generation
Instruction
512 x 12 or
Decode &
1024 x 12
PIC12F508/509 BLOCK DIAGRAM
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
Preliminary
5
RAM Addr
8
3
Data Bus
Addr MUX
Registers
W reg
25 x 8 or
ALU
RAM
File
Timer0
Status reg
5-7
FSR reg
MUX
9
Indirect
Addr
8
GPIO
 2004 Microchip Technology Inc.
GP0/ISCPDAT
GP1/ISCPCLK
GP2/T0CKI
GP3/MCLR/V
GP4/OSC2
GP5/OSC1/CLKIN
PP