Information

 2000-2012 Microchip Technology Inc. DS80073H-page 3
PIC16F62X
FIGURE 5-10: BLOCK DIAGRAM OF RB2/TX/CK PIN
Data Latch
TRIS Latch
RD TRISB
P
Vss
Q
D
Q
CK
Q
D
Q
CK
EN
QD
EN
N
VDD
0
1
RD PORTB
WR PORTB
WR TRISB
Schmitt
Trigger
Peripheral OE
(2)
Data Bus
Port/Peripheral
Select
(1)
USART TX/CK Output
RD PORTB
RB2/TX/CK
USART Slave Clock In
RBPU
VDD
Weak Pull-up
TTL
Input
Buffer
P
pin
VDD
VSS
Note 1: Port/Peripheral select signal selects between port data and peripheral output.
2: Peripheral OE (output enable) is only active if peripheral select is active.