PIC16F631_08 Datasheet, PDF (23/306 Pages) Microchip Technology – 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F631/677/685/687/689/690
TABLE 1-4: PINOUT DESCRIPTION – PIC16F687/PIC16F689 (CONTINUED)
Name
Function
Input Output
Type Type
Description
RB6/SCK/SCL
RB6
RB7/TX/CK
SCK
SCL
RB7
TX
CK
RC0/AN4/C2IN+
RC0
AN4
C2IN+
RC1/AN5/C12IN1-
RC1
AN5
C12IN1-
RC2/AN6/C12IN2-
RC2
AN6
C12IN2-
RC3/AN7/C12IN3-
RC3
AN7
C12IN3-
RC4/C2OUT
RC4
C2OUT
RC5
RC5
RC6/AN8/SS
RC6
AN8
SS
RC7/AN9/SDO
RC7
AN9
SDO
VSS
VSS
VDD
VDD
Legend:
AN = Analog input or output
TTL = TTL compatible input
HV = High Voltage
TTL CMOS General purpose I/O. Individually controlled interrupt-on-
change. Individually enabled pull-up.
ST CMOS SPI clock.
ST
OD I²C™ clock.
TTL CMOS General purpose I/O. Individually controlled interrupt-on-
change. Individually enabled pull-up.
— CMOS EUSART asynchronous output.
ST CMOS EUSART synchronous clock.
ST CMOS General purpose I/O.
AN
— A/D Channel 4 input.
AN
— Comparator C2 positive input.
ST CMOS General purpose I/O.
AN
— A/D Channel 5 input.
AN
— Comparator C1 or C2 negative input.
ST CMOS General purpose I/O.
AN
— A/D Channel 6 input.
AN
— Comparator C1 or C2 negative input.
ST CMOS General purpose I/O.
AN
— A/D Channel 7 input.
AN
— Comparator C1 or C2 negative input.
ST CMOS General purpose I/O.
— CMOS Comparator C2 output.
ST CMOS General purpose I/O.
ST CMOS General purpose I/O.
AN
— A/D Channel 8 input.
ST
— Slave Select input.
ST CMOS General purpose I/O.
AN
— A/D Channel 9 input.
— CMOS SPI data output.
Power — Ground reference.
Power — Positive supply.
CMOS = CMOS compatible input or output
OD = Open Drain
ST = Schmitt Trigger input with CMOS levels
XTAL = Crystal
© 2008 Microchip Technology Inc.
DS41262E-page 21