
PIC12(L)F1822/PIC16(L)F1823
DS41413C-page 16
2010-2012 Microchip Technology Inc.
RA5/CLKIN/OSC1/T1OSI/T1CKI
RA5
TTL
CMOS General purpose I/O.
CLKIN
CMOS
—
External clock input (EC mode).
OSC1
XTAL
—
Crystal/Resonator (LP, XT, HS modes).
T1OSI
XTAL
Timer1 oscillator connection.
T1CKI
ST
—
Timer1 clock input.
RC0/AN4/CPS4/C2IN+/SCL/
SCK
RC0
TTL
CMOS General purpose I/O.
AN4
AN
—
A/D Channel 4 input.
CPS4
AN
—
Capacitive sensing input 4.
C2IN+
AN
—
Comparator C2 positive input.
SCL
I2C
OD
I2C clock.
SCK
ST
CMOS SPI clock.
RC1/AN5/CPS5/C12IN1-/SDA/
SDI
RC1
TTL
CMOS General purpose I/O.
AN5
AN
—
A/D Channel 5 input.
CPS5
AN
—
Capacitive sensing input 5.
C12IN1-
AN
—
Comparator C1 or C2 negative input.
SDA
I2C
OD
I2C data input/output.
SDI
CMOS
—
SPI data input.
RC2/AN6/CPS6/C12IN2-/P1D/
SDO(1)/MDCIN1
RC2
TTL
CMOS General purpose I/O.
AN6
AN
—
A/D Channel 6 input.
CPS6
AN
—
Capacitive sensing input 6.
C12IN2-
AN
—
Comparator C1 or C2 negative input.
P1D
—
CMOS PWM output.
SDO
—
CMOS SPI data output.
MDCIN1
ST
—
Modulator Carrier Input 1.
RC3/AN7/CPS7/C12IN3-/P1C/
SS(1)/MDMIN
RC6
TTL
CMOS General purpose I/O.
AN7
AN
—
A/D Channel 6 input.
CPS7
AN
—
Capacitive sensing input 6.
C12IN3-
AN
—
Comparator C1 or C2 negative input.
P1C
—
CMOS PWM output.
SS
ST
—
Slave Select input.
MDMIN
ST
—
Modulator source input.
RC4/C2OUT/SRNQ/P1B/CK(1)/
TX(1)/MDOUT
RC4
TTL
CMOS General purpose I/O.
C2OUT
—
CMOS Comparator C2 output.
SRNQ
—
CMOS SR latch inverting output.
P1B
—
CMOS PWM output.
CK
ST
CMOS USART synchronous clock.
TX
—
CMOS USART asynchronous transmit.
MDOUT
—
CMOS Modulator output.
RC5/P1A/CCP1/DT(1)/RX(1)/
MDCIN2
RC5
TTL
CMOS General purpose I/O.
P1A
—
CMOS PWM output.
CCP1
ST
CMOS Capture/Compare/PWM 1.
DT
ST
CMOS USART synchronous data.
RX
ST
—
USART asynchronous input.
MDCIN2
ST
—
Modulator Carrier Input 2.
TABLE 1-3:
PIC16(L)F1823 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).