PIC16F526 Datasheet, PDF (12/122 Pages) Microchip Technology – 14-Pin, 8-Bit Flash Microcontroller

PIC16F526
FIGURE 3-1:
PIC16F526 BLOCK DIAGRAM
Flash Program
Memory
1K x 12
Flash Data
Memory
64x8
Program
Bus
12
Instruction Reg
11
Program Counter
Data Bus
8
STACK1
STACK2
RAM
67
bytes
File
Registers
RAM Addr ⁽¹⁾
9
Addr MUX
Direct Addr ⁵
Indirect
5-7 Addr
FSR Reg
STATUS Reg
8
OSC1/CLKIN
OSC2/CLKOUT
Instruction
Decode and
Control
Timing
Generation
Device Reset
Timer
Power-on
Reset
Watchdog
Timer
Internal RC
Clock
3
MUX
ALU
8
W Reg
MCLR
VDD, VSS
Timer0
PORTB
RB0/ICSPDAT
RB1/ICSPCLK
RB2
RB3/MCLR/VPP
RB4/OSC2/CLKOUT
RB5/OSC1/CLKIN
PORTC
RC0
RC1
RC2
RC3
RC4
RC5/T0CKI
Comparator 1
VREF
Comparator 2
CVREF
CVREF
C1IN+
C1IN-
C1OUT
C2IN+
C2IN-
C2OUT
CVREF
8-bit ADC
VREF
AN0
AN1
AN2
DS41326D-page 12
 2010 Microchip Technology Inc.