
PIC16(L)F1825/1829
DS41440C-page 14
2010-2012 Microchip Technology Inc.
RA4/AN3/CPS3/OSC2/
CLKOUT/T1OSO/CLKR/
SDO1(1)/P2B(1)/T1G(1,2)
RA4
TTL
CMOS General purpose I/O.
AN3
AN
—
A/D Channel 3 input.
CPS3
AN
—
Capacitive sensing input 3.
OSC2
—
CMOS Comparator C2 output.
CLKOUT
—
CMOS FOSC/4 output.
T1OSO
XTAL
Timer1 oscillator connection.
CLKR
—
CMOS Clock Reference output.
SDO1
—
CMOS SPI data output.
P2B
—
CMOS PWM output.
T1G
ST
—
Timer1 Gate input.
RA5/CLKIN/OSC1/T1OSI/
T1CKI/P2A(1)/CCP2(1)
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.
P2A
—
CMOS PWM output.
CCP2
ST
CMOS Capture/Compare/PWM2.
RC0/AN4/CPS4/C2IN+/SCL/
SCK/P1D(1)
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
I2COD
I2C clock.
SCK
ST
CMOS SPI clock.
P1D
—
CMOS PWM output.
RC1/AN5/CPS5/C12IN1-/SDA/
SDI/P1C(1)/CCP4
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
I2COD
I2C data input/output.
SDI
CMOS
—
SPI data input.
P1C
—
CMOS PWM output.
CCP4
AN
—
Capture/Compare/PWM4.
RC2/AN6/CPS6/C12IN2-/
P1D(1,2)/P2B(1,2)/SDO1(1,2)/
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.
P2B
—
CMOS PWM output.
SDO1
—
CMOS SPI data output.
MDCIN1
ST
—
Modulator Carrier Input 1.
TABLE 1-2:
PIC16(L)F1825 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 moved using the APFCON0 or APFCON1 register.
2: Default function location.