PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 64

• 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 5-14:
DS30498C-page 62
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
Program Mode/ICD
BLOCK DIAGRAM OF RB6/PGC PIN
Data Bus
WR PORTB
WR TRISB
Set RBIF
From other
RB7:RB4 pins
PGC
RBPU
(1)
RD PORTB
RD TRISB
TRIS Latch
Data Latch
D
D
CK
CK
Q
Q
Schmitt Trigger
Buffer
Program Mode/ICD
Q
Q
Input Buffer
Latch
TTL
EN
EN
D
D
RD PORTB
 2004 Microchip Technology Inc.
V
P
DD
Weak
Pull-up
I/O pin
Q1
Q3