
2011 Microchip Technology Inc.
Preliminary
DS41458B-page 13
PIC16(L)F1526/27
TABLE 1-2:
PIC16(L)F1526 PINOUT DESCRIPTION
Name
Function
Input
Type
Output
Type
Description
RA0/AN0
RA0
TTL
CMOS General purpose I/O.
AN0
AN
—
A/D Channel 0 input.
RA1/AN1
RA1
TTL
CMOS General purpose I/O.
AN1
AN
—
A/D Channel 1 input.
RA2/AN2
RA2
TTL
CMOS General purpose I/O.
AN2
AN
—
A/D Channel 2 input.
RA3/AN3/VREF+
RA3
TTL
CMOS General purpose I/O.
AN3
AN
—
A/D Channel 3 input.
VREF+
AN
—
A/D Positive Voltage Reference input.
RA4/T0CKI
RA4
TTL
CMOS General purpose I/O.
T0CKI
ST
—
Timer0 clock input.
RA5/AN4/T3G
RA5
TTL
CMOS General purpose I/O.
AN4
AN
—
A/D Channel 4 input.
T3G
ST
—
Timer3 gate input.
RA6/OSC2/CLKOUT
RA6
TTL
CMOS General purpose I/O.
OSC2
—
XTAL
Crystal/Resonator (LP, XT, HS modes).
CLKOUT
—
CMOS FOSC/4 output.
RA7/OSC1/CLKIN
RA7
TTL
CMOS General purpose I/O.
OSC1
XTAL
—
Crystal/Resonator (LP, XT, HS modes).
CLKIN
ST
—
External clock input (EC mode).
RB0/AN17/INT
RB0
TTL
CMOS General purpose I/O with IOC and WPU.
AN17
AN
—
A/D Channel 17 input.
INT
ST
—
External interrupt.
RB1/AN18
RB1
TTL
CMOS General purpose I/O with IOC and WPU.
AN18
AN
—
A/D Channel 18 input.
RB2/AN19
RB2
TTL
CMOS General purpose I/O with IOC and WPU.
AN19
AN
—
A/D Channel 19 input.
RB3/AN20
RB3
TTL
CMOS General purpose I/O with IOC and WPU.
AN20
AN
—
A/D Channel 20 input.
RB4/AN21/T3CKI(2)
RB4
TTL
CMOS General purpose I/O with IOC and WPU.
AN21
AN
—
A/D Channel 21 input.
T3CKI
ST
—
Timer3 clock input.
RB5/AN22/T1G/T3CKI(1)/
RB5
TTL
CMOS General purpose I/O with IOC and WPU.
AN22
AN
—
A/D Channel 22 input.
T1G
ST
—
Timer1 gate input.
T3CKI
ST
—
Timer3 clock input.
RB6/ICSPCLK/ICDCLK
RB6
TTL
CMOS General purpose I/O with IOC and WPU.
ICSPCLK
ST
—
Serial Programming Clock.
ICDCLK
ST
—
In-Circuit Debug Clock.
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:
Peripheral pin location selected using APFCON register. Default location.
2:
Peripheral pin location selected using APFCON register. Alternate location.
3:
RC3, RC4, RD5 and RD6 read the I2C ST input when I2C mode is enabled.