PIC16F636T-I Datasheet, PDF (15/234 Pages) Microchip Technology – 8/14-Pin, Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC12F635/PIC16F636/639
TABLE 1-2: PIC16F636 PINOUT DESCRIPTIONS
Name
Function
Input
Type
Output
Type
Description
RA0/C1IN+/ICSPDAT/ULPWU
RA0
RA1/C1IN-/VREF/ICSPCLK
C1IN+
ICSPDAT
ULPWU
RA1
RA2/T0CKI/INT/C1OUT
C1IN-
VREF
ICSPCLK
RA2
RA3/MCLR/VPP
RA4/T1G/OSC2/CLKOUT
T0CKI
INT
C1OUT
RA3
MCLR
VPP
RA4
RA5/T1CKI/OSC1/CLKIN
T1G
OSC2
CLKOUT
RA5
T1CKI
OSC1
CLKIN
RC0/C2IN+
RC0
C2IN+
RC1/C2IN-
RC1
C2IN-
RC2
RC2
RC3
RC3
RC4/C2OUT
RC4
C2OUT
RC5
RC5
VDD
VDD
VSS
VSS
Legend:
AN = Analog input or output
HV = High Voltage
TTL = TTL compatible input
TTL
— General purpose I/O. Individually controlled
interrupt-on-change. Individually enabled pull-up/pull-down.
Selectable Ultra Low-Power Wake-up pin.
AN
— Comparator 1 input – positive.
TTL CMOS Serial programming data I/O.
AN
— Ultra Low-Power Wake-up input.
TTL CMOS General purpose I/O. Individually controlled
interrupt-on-change. Individually enabled pull-up/pull-down.
AN
— Comparator 1 input – negative.
AN
— External voltage reference
ST
— Serial programming clock.
ST CMOS General purpose I/O. Individually controlled
interrupt-on-change. Individually enabled pull-up/pull-down.
ST
— External clock for Timer0.
ST
— External interrupt.
— CMOS Comparator 1 output.
TTL
— General purpose input. Individually controlled interrupt-on-change.
ST
— Master Clear Reset. Pull-up enabled when configured as MCLR.
HV
— Programming voltage.
TTL CMOS General purpose I/O. Individually controlled interrupt-on-change.
Individually enabled pull-up/pull-down.
ST
— Timer1 gate.
—
XTAL XTAL connection.
— CMOS TOSC/4 reference clock.
TTL CMOS General purpose I/O. Individually controlled interrupt-on-change.
Individually enabled pull-up/pull-down.
ST
— Timer1 clock.
XTAL
— XTAL connection.
ST
— TOSC reference clock.
TTL CMOS General purpose I/O.
AN
— Comparator 1 input – positive.
TTL CMOS General purpose I/O.
AN
— Comparator 1 input – negative.
TTL CMOS General purpose I/O.
TTL CMOS General purpose I/O.
TTL CMOS General purpose I/O.
— CMOS Comparator 2 output.
TTL CMOS General purpose I/O.
D
— Power supply for microcontroller.
D
— Ground reference for microcontroller.
CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels
XTAL = Crystal
D = Direct
© 2007 Microchip Technology Inc.
DS41232D-page 13