PIC16F631_08 Datasheet, PDF (79/306 Pages) Microchip Technology – 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F631/677/685/687/689/690
4.5.1 RC0/AN4/C2IN+
The RC0 is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• an analog input to Comparator C2
4.5.2
RC1/AN5/C12IN1-
The RC1 is configurable to function as one of the
following:
• a general purpose I/O
• an analog input for the ADC
• an analog input to Comparator C1 or C2
FIGURE 4-11:
Data Bus
BLOCK DIAGRAM OF RC0
AND RC1
WR
PORTC
DQ
CK _Q
WR
TRISC
DQ
CK _Q
RD
TRISC
Analog Input
Mode⁽¹⁾
RD
PORTC
To Comparators
To A/D Converter⁽²⁾
VDD
I/O Pin
VSS
Note 1: ANSEL determines Analog Input mode.
2: Not implemented on PIC16F631.
4.5.3 RC2/AN6/C12IN2-/P1D
The RC2/AN6/P1D⁽¹⁾ is configurable to function as
one of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• a PWM output
• an analog input to Comparator C1 or C2
Note 1: P1D is available on
PIC16F685/PIC16F690 only.
4.5.4 RC3/AN7/C12IN3-/P1C
The RC3/AN7/P1C⁽¹⁾ is configurable to function as one
of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• a PWM output
• a PWM output
• an analog input to Comparator C1 or C2
Note 1: P1C is available on
PIC16F685/PIC16F690 only.
FIGURE 4-12:
BLOCK DIAGRAM OF RC2
AND RC3
Data Bus
CCP1OUT
Enable
DQ
VDD
WR
PORTC
CK _Q
CCP1OUT 01
WR
TRISC
DQ
CK _Q
RD
TRISC
10
I/O Pin
VSS
Analog Input
Mode⁽¹⁾
RD
PORTC
To Comparators
To A/D Converter⁽²⁾
Available on PIC16F685/PIC16F690 only.
Note 1: ANSEL determines Analog Input mode.
2: Not implemented on PIC16F631.
© 2008 Microchip Technology Inc.
DS41262E-page 77