PIC16F526 Datasheet, PDF (30/122 Pages) Microchip Technology – 14-Pin, 8-Bit Flash Microcontroller

PIC16F526
FIGURE 6-2:
BLOCK DIAGRAM OF RB2
Data
Bus
WR
Port
C1OUT 0
D
Q¹
Data
Latch
CK
Q
I/O Pin⁽¹⁾
W
Reg
TRIS ‘f’
C1OUTEN
D
Q
TRIS
Latch
CK
Q
Reset
ADC Pin Enable
RD Port
ADC
Note 1: I/O pins have protection diodes to VDD and
VSS.
FIGURE 6-3:
GPPU
RBPU
MCLRE
BLOCK DIAGRAM OF RB3
(with Weak Pull-up and
Wake-up on Change)
Reset
Input Pin
Data Bus
RD Port
Q
D
CK
Pin Change
Note 1: RB3/MCLR pin has a protection diode to VSS
only.
DS41326D-page 30
 2010 Microchip Technology Inc.