PIC12F639 Microchip Technology, PIC12F639 Datasheet - Page 10
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PIC12F639
Manufacturer Part Number
PIC12F639
Description
(PIC12F635 / PIC12F636 / PIC12F639) 8/14-PIN FLASH-BASED / 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY
Manufacturer
Microchip Technology
Datasheet
1.PIC12F639.pdf
(196 pages)
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PIC12F635/PIC16F636/639
TABLE 1-1:
DS41232B-page 8
V
GP5/T1CKI/OSC1/CLKIN
GP4/T1G/OSC2/CLKOUT
GP3/MCLR/V
GP2/T0CKI/INT/C1OUT
GP1/C1IN-/ICSPCLK
GP0/C1IN+/ICSPDAT/ULPWU
V
Legend: AN = Analog input or output
DD
SS
HV = High Voltage
TTL = TTL compatible input
Name
PP
PIC12F635 PINOUT DESCRIPTIONS
Function
ICSPCLK
ICSPDAT
CLKOUT
ULPWU
C1OUT
CLKIN
C1IN+
T1CKI
OSC1
OSC2
MCLR
T0CKI
C1IN-
GP5
GP4
T1G
GP3
GP2
GP1
GP0
V
V
V
INT
DD
PP
SS
Input
XTAL
Type
TTL
TTL
TTL
TTL
TTL
TTL
HV
AN
AN
AN
ST
ST
ST
ST
ST
ST
ST
ST
—
—
—
CMOS = CMOS compatible input or output
ST
XTAL = Crystal
D
D
Preliminary
Output
CMOS General purpose I/O. Individually controlled interrupt-on-
CMOS General purpose I/O. Individually controlled interrupt-on-
CMOS T
CMOS General purpose I/O. Individually controlled
CMOS Comparator 1 output.
CMOS General purpose I/O. Individually controlled
CMOS Serial programming data I/O.
= Schmitt Trigger input with CMOS levels
XTAL
Type
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Power supply for microcontroller.
change. Individually enabled pull-up/pull-down.
Timer1 clock.
T
change. Individually enabled pull-up/pull-down.
Timer1 gate.
XTAL connection.
General purpose input. Individually controlled
interrupt-on-change.
MCLR.
Programming voltage.
interrupt-on-change. Individually enabled
pull-up/pull-down.
interrupt-on-change. Individually enabled
pull-up/pull-down.
Comparator 1 input – negative.
interrupt-on-change. Individually enabled
pull-up/pull-down.
Selectable Ultra Low-Power Wake-up pin.
Comparator 1 input – positive.
Ultra Low-Power Wake-up input.
Ground reference for microcontroller.
XTAL connection.
Master Clear Reset. Pull-up enabled when configured as
External clock for Timer0.
External interrupt.
Serial programming clock.
General purpose I/O. Individually controlled
OSC
OSC
/4 reference clock.
reference clock.
Description
© 2005 Microchip Technology Inc.
D = Direct
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