PIC16F631/677/685/687/689/690
4.4.3.2
RB5/AN11/RX/DT
FIGURE 4-8:
BLOCK DIAGRAM OF RB5
Figure 4-8 shows the diagram for this pin. The
RB5/AN11/RX/DT(1,2) pin is configurable to function as
one of the following:
Analog(1)
Input Mode
Data Bus
D
Q
Q
VDD
WR
CK
• a general purpose I/O
Weak
WPUB
• an analog input for the ADC (except PIC16F631)
• an asynchronous serial input
RABPU
RD
WPUB
• a synchronous serial data I/O
SYNC
SPEN
Note 1: RX and DT are available on
VDD
PIC16F687/PIC16F689/PIC16F690 only.
D
Q
Q
EUSART
DT
2: AN11 is not implemented on PIC16F631.
10
WR
PORTB
CK
01
I/O Pin
From
D
Q
Q
EUSART 10
WR
TRISB
CK
VSS
0
Analog(1)
Input Mode
RD
TRISB
RD
PORTB
D
Q
Q
Q
D
D
CK
WR
IOCB
EN
Q3
RD
IOCB
Q
ST
EN
Interrupt-on-
Change
RD PORTB
To EUSART RX/DT
To A/D Converter(2)
Available on PIC16F687/PIC16F689/PIC16F690 only.
Note 1:
2:
ANSEL determines Analog Input mode.
Not implemented on PIC16F631.
DS41262D-page 72
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
