Datasheet

 2008-2011 Microchip Technology Inc. DS39927C-page 15
PIC24F16KA102 FAMILY
PGC1 5 2 5 2 I/O ST In-Circuit Debugger and ICSP™ Programming
Clock
PGD1 4 1 4 1 I/O ST In-Circuit Debugger and ICSP Programming Data
PGC2 2 19 22 19 I/O ST In-Circuit Debugger and ICSP Programming
Clock
PGD2 3 20 21 18 I/O ST In-Circuit Debugger and ICSP Programming Data
PGC3 10 7 15 12 I/O ST In-Circuit Debugger and ICSP Programming
Clock
PGD3 9 6 14 11 I/O ST In-Circuit Debugger and ICSP Programming Data
RA0 2 19 2 27 I/O ST PORTA Digital I/O
RA1 3 20 3 28 I/O ST
RA2 7 4 9 6 I/O ST
RA3 8 5 10 7 I/O ST
RA4 10 7 12 9 I/O ST
RA5 1 18 1 26 I/O ST
RA6 14 11 20 17 I/O ST
RA7 — — 19 16 I/O ST
RB0 4 1 4 1 I/O ST PORTB Digital I/O
RB1 5 2 5 2 I/O ST
RB2 6 3 6 3 I/O ST
RB3 — — 7 4 I/O ST
RB4 9 6 11 8 I/O ST
RB5 — — 14 11 I/O ST
RB6 — — 15 12 I/O ST
RB7 11 8 16 13 I/O ST
RB8 12 9 17 14 I/O ST
RB9 13 10 18 15 I/O ST
RB10 — — 21 18 I/O ST
RB11 — — 22 19 I/O ST
RB12 15 12 23 20 I/O ST
RB13 16 13 24 21 I/O ST
RB14 17 14 25 22 I/O ST
RB15 18 15 26 23 I/O ST
REFO 18 15 26 23 O — Reference Clock Output
RTCC 17 14 25 22 O — Real-Time Clock Alarm Output
SCK1 15 12 22 19 I/O ST SPI1 Serial Clock Input/Output
SCL1 12 9 17, 15
(1)
14, 12
(1)
I/O I
2
C I2C1 Synchronous Serial Clock Input/Output
SDA1 13 10 18, 14
(1)
15, 11
(1)
I/O I
2
C I2C1 Data Input/Output
SDI1 17 14 21 18 I ST SPI1 Serial Data Input
SDO1 16 13 24 21 O — SPI1 Serial Data Output
SOSCI 9 6 11 8 I ANA Secondary Oscillator Input
SOSCO 10 7 12 9 O ANA Secondary Oscillator Output
SS1
18 15 26 23 I/O ST Slave Select Input/Frame Select Output (SPI1)
TABLE 1-2: PIC24F16KA102 FAMILY PINOUT DESCRIPTIONS (CONTINUED)
Function
Pin Number
I/O
Input
Buffer
Description
20-Pin
PDIP/SSOP/
SOIC
20-Pin
QFN
28-Pin
SPDIP/
SSOP/SOIC
28-Pin
QFN
Legend: ST = Schmitt Trigger input buffer, ANA = Analog level input/output, I
2
C™ = I
2
C/SMBus input buffer
Note 1: Alternative multiplexing when the I2C1SEL Configuration bit is cleared.