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

PIC12F635/PIC16F636/639
TABLE 1-1: PIC12F635 PINOUT DESCRIPTIONS
Name
Function
Input
Type
Output
Type
Description
GP0/C1IN+/ICSPDAT/ULPWU
GP0
GP1/C1IN-/ICSPCLK
C1IN+
ICSPDAT
ULPWU
GP1
GP2/T0CKI/INT/C1OUT
C1IN-
ICSPCLK
GP2
GP3/MCLR/VPP
T0CKI
INT
C1OUT
GP3
GP4/T1G/OSC2/CLKOUT
MCLR
VPP
GP4
GP5/T1CKI/OSC1/CLKIN
T1G
OSC2
CLKOUT
GP5
VDD
VSS
Legend:
T1CKI
OSC1
CLKIN
VDD
VSS
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.
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.
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
DS41232D-page 12
© 2007 Microchip Technology Inc.