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

PIC12F635/PIC16F636/639
20-Pin Diagram
SSOP
VDD
RA5/T1CKI/OSC1/CLKIN
RA4/T1G/OSC2/CLKOUT
RA3/MCLR/VPP
RC5
RC4/C2OUT
RC3/LFDATA/RSSI/CCLK/SDIO
VDDT⁽³⁾
LCZ
LCY
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VSS
RA0/C1IN+/ICSPDAT/ULPWU
RA1/C1IN-/VREF/ICSPCLK
RA2/TOCKI/INT/C1OUT
RC0/C2IN+
RC1/C2IN-/CS
RC2/SCLK/ALERT
VSST⁽⁴⁾
LCCOM
LCX
TABLE 4: 20-PIN SUMMARY
I/O Pin Analog Front-End Comparators Timer Interrupts Pull-ups
Basic
RA0 19
—
C1IN+
—
IOC
Y
ICSPDAT/ULPWU
RA1 18
—
C1IN-
—
IOC
Y
VREF/ICSPCLK
RA2 17
—
RA3⁽¹⁾ ₄
—
C1OUT
T0CKI
INT/IOC
Y
—
—
IOC
Y⁽²⁾
—
MCLR/VPP
RA4
3
—
—
T1G
IOC
Y
OSC2/CLKOUT
RA5
2
—
—
T1CKI
IOC
Y
OSC1/CLKIN
RC0 16
—
C2IN+
—
—
—
—
RC1 15
—
C2IN-
—
—
—
CS
RC2 14
ALERT
—
—
—
—
SCLK
RC3
7
LFDATA/RSSI
—
—
—
—
CCLK/SDIO
RC4
6
—
C2OUT
—
—
—
—
RC5
5
—
—
8
—
— 13
—
—
—
—
—
—
—
—
—
—
VDDT⁽³⁾
—
—
—
—
VSST⁽⁴⁾
—
11
LCX
—
—
—
—
—
— 10
LCY
—
—
—
—
—
—
9
LCZ
—
—
—
—
—
— 12
LCCOM
—
—
—
—
—
—
1
—
—
—
—
—
VDD
— 20
—
—
—
—
—
VSS
Note 1: Input only.
2: Only when pin is configured for external MCLR.
3: VDDT is the supply voltage of the Analog Front-End section (PIC16F639 only). VDDT is treated as VDD in
this document unless otherwise stated.
4: VSST is the ground reference voltage of the Analog Front-End section (PIC16F639 only). VSST is treated
as VSS in this document unless otherwise stated.
DS41232D-page 6
© 2007 Microchip Technology Inc.