PIC16F631_08 Datasheet, PDF (81/306 Pages) Microchip Technology – 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F631/677/685/687/689/690
4.5.7 RC6/AN8/SS
The RC6/AN8/SS^(1,2) is configurable to function as one
of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• a slave select input
Note 1: SS is available on
PIC16F687/PIC16F689/PIC16F690 only.
2: AN8 is not implemented on PIC16F631.
FIGURE 4-15:
Data Bus
BLOCK DIAGRAM OF RC6
DQ
VDD
WR
PORTC
CK _Q
WR
TRISC
DQ
CK _Q
RD
TRISC
Analog Input
Mode⁽¹⁾
RD
PORTC
To SS Input
To A/D Converter⁽²⁾
I/O Pin
VSS
Available on PIC16F685/PIC16F690 only.
Note 1: ANSEL determines Analog Input mode.
2: Not implemented on PIC16F631.
4.5.8 RC7/AN9/SDO
The RC7/AN9/SDO^(1,2) is configurable to function as
one of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• a serial data output
Note 1: SDO is available on PIC16F687/
PIC16F689/PIC16F690 only.
2: AN9 is not implemented on PIC16F631.
FIGURE 4-16:
BLOCK DIAGRAM OF RC7
Data Bus
PORT/SDO
Select
SDO 01
DQ
10
WR
PORTC
CK _Q
WR
TRISC
DQ
CK _Q
RD
TRISC
Analog Input
Mode⁽¹⁾
RD
PORTC
To A/D Converter⁽²⁾
VDD
I/O Pin
VSS
Available on PIC16F685/PIC16F690 only.
Note 1: ANSEL determines Analog Input mode.
2: Not implemented on PIC16F631.
© 2008 Microchip Technology Inc.
DS41262E-page 79