PIC12(L)F1822/PIC16(L)F1823
DS41413C-page 14
2010-2012 Microchip Technology Inc.
RA4/AN3/CPS3/OSC2/
CLKOUT/T1OSO/C1IN1-/CLKR/
SDO(1)/CK(1)/TX(1)/P1B(1)/
T1G(1)/MDCIN2
RA4
TTL
CMOS General purpose I/O.
AN3
AN
鈥�
A/D Channel 3 input.
CPS3
AN
鈥�
Capacitive sensing input 3.
OSC2
XTAL
Crystal/Resonator (LP, XT, HS modes).
CLKOUT
鈥�
CMOS FOSC/4 output.
T1OSO
XTAL
Timer1 oscillator connection.
C1IN1-
AN
鈥�
Comparator C1 negative input.
CLKR
鈥�
CMOS Clock Reference output.
SDO
鈥�
CMOS SPI data output.
CK
ST
CMOS USART synchronous clock.
TX
鈥�
CMOS USART asynchronous transmit.
P1B
鈥�
CMOS PWM output.
T1G
ST
鈥�
Timer1 Gate input.
MDCIN2
ST
鈥�
Modulator Carrier Input 2.
RA5/CLKIN/OSC1/T1OSI/
T1CKI/SRNQ/P1A(1)/CCP1(1)/
DT(1)/RX(1)
RA5
TTL
CMOS General purpose I/O.
CLKIN
CMOS
鈥�
External clock input (EC mode).
OSC1
XTAL
鈥�
Crystal/Resonator (LP, XT, HS modes).
T1OSI
XTAL
Timer1 oscillator connection.
T1CKI
ST
鈥�
Timer1 clock input.
SRNQ
鈥�
CMOS SR latch inverting output.
P1A
鈥�
CMOS PWM output.
CCP1
ST
CMOS Capture/Compare/PWM 1.
DT
ST
CMOS USART synchronous data.
RX
ST
鈥�
USART asynchronous input.
VDD
Power
鈥�
Positive supply.
VSS
Power
鈥�
Ground reference.
TABLE 1-2:
PIC12(L)F1822 PINOUT DESCRIPTION (CONTINUED)
Name
Function
Input
Type
Output
Type
Description
Legend:
AN = Analog input or output CMOS= CMOS compatible input or output
OD
= Open Drain
TTL = TTL compatible input
ST
= Schmitt Trigger input with CMOS levels I2C = Schmitt Trigger input with I2C
HV = High Voltage
XTAL = Crystal
levels
Note
1:
Pin functions can be assigned to one of two pin locations via software. See APFCON register (Register 12-1).