PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 62

• Manufacturer Part Number: PIC16F747
• Description: 28/40/44-pin, 8-bit Cmos Flash Microcontrollers With 10-bit A/d And Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

PIC16F7X7
FIGURE 5-12:
DS30498C-page 60
Data Bus
WR PORTB
WR TRISB
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
To A/D channel input
Set RBIF
From other
RB7:RB4 pins
BLOCK DIAGRAM OF RB4/AN11 PIN
RD PORTB
TRIS Latch
RD TRISB
Data Latch
D
D
CK
CK
Q
Q
Analog
Input Mode
Analog
Input Mode
RBPU
(1)
Input Mode
Input Buffer
Analog
Q
Q
TTL
Latch
V
P
V
N
DD
SS
EN
EN
D
D
 2004 Microchip Technology Inc.
V
P
DD
Weak
Pull-up
RD PORTB
I/O pin
Q1
Q3