Datasheet

 2010-2012 Microchip Technology Inc. DS41413C-page 15
PIC12(L)F1822/PIC16(L)F1823
TABLE 1-3: PIC16(L)F1823 PINOUT DESCRIPTION
Name Function
Input
Type
Output
Type
Description
RA0/AN0/CPS0/C1IN+/
DACOUT/TX
(1)
/CK
(1)
/ICSPDAT/
ICDDAT
RA0 TTL CMOS General purpose I/O.
AN0 AN — A/D Channel 0 input.
CPS0 AN — Capacitive sensing input 0.
C1IN+ AN — Comparator C1 positive input.
DACOUT — AN Digital-to-Analog Converter output.
TX — CMOS USART asynchronous transmit.
CK ST CMOS USART synchronous clock.
ICSPDAT ST CMOS ICSP™ Data I/O.
RA1/AN1/CPS1/C12IN0-/V
REF+/
SRI/RX
(1)
/DT
(1)
/ICSPCLK/
ICDCLK
RA1 TTL CMOS General purpose I/O.
AN1 AN — A/D Channel 1 input.
CPS1 AN — Capacitive sensing input 1.
C12IN0- AN — Comparator C1 or C2 negative input.
V
REF+ AN — A/D and DAC Positive Voltage Reference input.
SRI ST — SR latch input.
RX ST — USART asynchronous input.
DT ST CMOS USART synchronous data.
ICSPCLK ST — Serial Programming Clock.
RA2/AN2/CPS2/T0CKI/INT/
C1OUT/SRQ/FLT0
RA2 TTL CMOS General purpose I/O.
AN2 AN — A/D Channel 2 input.
CPS2 AN — Capacitive sensing input 2.
T0CKI ST — Timer0 clock input.
INT ST — External interrupt.
C1OUT — CMOS Comparator C1 output.
SRQ — CMOS SR latch non-inverting output.
FLT0 ST — ECCP Auto-Shutdown Fault input.
RA3/SS
(1)
/T1G
(1)
/VPP/MCLR RA3 TTL — General purpose input.
SS
ST — Slave Select input.
T1G ST — Timer1 Gate input.
V
PP HV — Programming voltage.
MCLR
ST — Master Clear with internal pull-up.
RA4/AN3/CPS3/OSC2/
CLKOUT/T1OSO/CLKR/SDO
(1)
/
T1G
(1)
RA4 TTL CMOS General purpose I/O.
AN3 AN — A/D Channel 3 input.
CPS3 AN — Capacitive sensing input 3.
OSC2 XTAL XTAL Crystal/Resonator (LP, XT, HS modes).
CLKOUT — CMOS F
OSC/4 output.
T1OSO XTAL XTAL Timer1 oscillator connection.
CLKR — CMOS Clock Reference output.
SDO — CMOS SPI data output.
T1G ST — Timer1 Gate input.
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 I
2
C™ = Schmitt Trigger input with I
2
C
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).