Datasheet

© 2008 Microchip Technology Inc. DS41262E-page 23
PIC16F631/677/685/687/689/690
RB6/SCK/SCL RB6 TTL CMOS General purpose I/O. Individually controlled interrupt-on-
change. Individually enabled pull-up.
SCK ST CMOS SPI clock.
SCL ST OD I
2
C™ clock.
RB7/TX/CK RB7 TTL CMOS General purpose I/O. Individually controlled interrupt-on-
change. Individually enabled pull-up.
TX — CMOS EUSART asynchronous output.
CK ST CMOS EUSART synchronous clock.
RC0/AN4/C2IN+ RC0 ST CMOS General purpose I/O.
AN4 AN — A/D Channel 4 input.
C2IN+ AN — Comparator C2 positive input.
RC1/AN5/C12IN1- RC1 ST CMOS General purpose I/O.
AN5 AN — A/D Channel 5 input.
C12IN1- AN — Comparator C1 or C2 negative input.
RC2/AN6/C12IN2-/P1D RC2 ST CMOS General purpose I/O.
AN6 AN — A/D Channel 6 input.
C12IN2- AN — Comparator C1 or C2 negative input.
P1D — CMOS PWM output.
RC3/AN7/C12IN3-/P1C RC3 ST CMOS General purpose I/O.
AN7 AN — A/D Channel 7 input.
C12IN3- AN — Comparator C1 or C2 negative input.
P1C — CMOS PWM output.
RC4/C2OUT/P1B RC4 ST CMOS General purpose I/O.
C2OUT — CMOS Comparator C2 output.
P1B — CMOS PWM output.
RC5/CCP1/P1A RC5 ST CMOS General purpose I/O.
CCP1 ST CMOS Capture/Compare input.
P1A ST CMOS PWM output.
RC6/AN8/SS
RC6 ST CMOS General purpose I/O.
AN8 AN — A/D Channel 8 input.
SS
ST — Slave Select input.
RC7/AN9/SDO RC7 ST CMOS General purpose I/O.
AN9 AN — A/D Channel 9 input.
SDO — CMOS SPI data output.
V
SS VSS Power — Ground reference.
V
DD VDD Power — Positive supply.
TABLE 1-5: PINOUT DESCRIPTION – PIC16F690 (CONTINUED)
Name Function
Input
Type
Output
Type
Description
Legend: AN = Analog input or output CMOS = CMOS compatible input or output OD = Open Drain
TTL = TTL compatible input ST = Schmitt Trigger input with CMOS levels
HV = High Voltage XTAL = Crystal