PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 59

• 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.

FIGURE 5-8:
FIGURE 5-9:
 2004 Microchip Technology Inc.
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
Analog
Input Mode
Analog
Input Mode
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
To A/D Channel Input
BLOCK DIAGRAM OF RB0/INT/AN12 PIN
BLOCK DIAGRAM OF RB1/AN10 PIN
To A/D Channel Input
Data Bus
WR PORTB
WR TRISB
RBPU
Data Bus
WR PORTB
WR TRISB
RBPU
(1)
(1)
To INT
RD PORTB
TRIS Latch
RD TRISB
Data Latch
RD PORTB
D
D
CK
CK
TRIS Latch
Data Latch
D
D
CK
CK
Q
Q
RD TRISB
Q
Q
Input Mode
Analog
Input Mode
Input Mode
Analog
Input Buffer
Analog
Q
Input Buffer
Q
TTL
EN
D
RD PORTB
TTL
EN
RD PORTB
D
PIC16F7X7
V
P
DD
V
Weak
Pull-up
P
DD
I/O pin
Weak
Pull-up
I/O pin
DS30498C-page 57