PIC16F819 Microchip Technology Inc., PIC16F819 Datasheet - Page 49

• Manufacturer Part Number: PIC16F819
• Description: 18/20-pin Enhanced Flash Microcontrollers With Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

FIGURE 5-10:
 2004 Microchip Technology Inc.
Note 1: I/O pins have diode protection to V
BLOCK DIAGRAM OF RB2 PIN
2: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
CCPMX
SDO
CCP
RBPU
Data Bus
WR
PORTB
WR
TRISB
(2)
RD PORTB
0
1
TRIS Latch
Data Latch
D
D
CK
CK
RD TRISB
Q
Q
Module Select
DD
0
1
and V
SS
Q
.
EN
RD PORTB
D
TTL
Input
Buffer
V
PIC16F818/819
P
DD
I/O pin
Weak
Pull-up
(1)
DS39598E-page 47