PIC12F635/PIC16F636/639
16-Pin Diagram
QFN
12
11
10
9
RA0/C1IN+/ICSPDAT/ULPWU
RA1/C1IN-/VREF/ICSPCLK
RA5/T1CKI/OSC1/CLKIN
1
2
3
4
RA4/AN3/T1G/OSC2/CLKOUT
RA3/MCLR/VPP
RC5
PIC16F636
RA2/T0CKI/INT/C1OUT
RC0/C2IN+
TABLE 3:
I/O
RA0
16-PIN SUMMARY
Comparators
Pin
Timer
Interrupts
Pull-ups
Basic
12
11
10
C1IN+
C1IN-
—
—
IOC
IOC
Y
Y
Y
ICSPDAT/ULPWU
VREF/ICSPCLK
—
RA1
RA2
C1OUT
T0CKI
INT/IOC
RA3(1)
3
2
—
—
—
T1G
T1CKI
—
IOC
IOC
IOC
—
Y(2)
Y
MCLR/VPP
RA4
RA5
RC0
RC1
RC2
RC3
RC4
RC5
—
OSC2/CLKOUT
1
—
Y
OSC1/CLKIN
9
C2IN+
C2IN-
—
—
—
—
—
—
—
—
—
—
—
—
—
8
—
—
7
—
—
—
6
—
—
—
—
5
C2OUT
—
—
—
—
4
—
—
—
16
13
14
15
—
—
—
VDD
VSS
NC
NC
—
—
—
—
—
—
—
—
—
—
—
—
Note 1: Input only.
2: Only when pin is configured for external MCLR.
© 2007 Microchip Technology Inc.
DS41232D-page 5
MICROCHIP [ MICROCHIP ]
