Datasheet

PIC16F7X7
DS30498D-page 60  2003-2013 Microchip Technology Inc.
FIGURE 5-12: BLOCK DIAGRAM OF RB4/AN11 PIN
Data Latch
From other
P
V
DD
I/O pin
QD
CK
QD
CK
QD
EN
QD
EN
Data Bus
WR PORTB
WR TRISB
Set RBIF
TRIS Latch
RD TRISB
RD PORTB
RB7:RB4 pins
Weak
Pull-up
RD PORTB
Latch
Q3
Q1
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU
bit.
To A/D channel input
P
N
VSS
VDD
Input Mode
Analog
TTL
Input Buffer
Input Mode
Analog
Input Mode
Analog
RBPU
(1)