Datasheet

PIC24F16KL402 FAMILY
DS30001037C-page 20  2011-2013 Microchip Technology Inc.
SCK1 15 12 8 I/O ST MSSP1 SPI Serial Input/Output Clock
SCL1 12 9 8 I/O I
2
C MSSP1 I
2
C Clock Input/Output
SCLKI 10 7 12 I ST Digital Secondary Clock Input
SDA1 13 10 9 I/O I
2
C MSSP1 I
2
C Data Input/Output
SDI1 17 14 11 I ST MSSP1 SPI Serial Data Input
SDO1 16 13 9 O — MSSP1 SPI Serial Data Output
SOSCI 9 6 11 I ANA Secondary Oscillator Input
SOSCO 10 7 12 O ANA Secondary Oscillator Output
SS1
12 9 12 O — SPI1 Slave Select
T1CK 13 10 9 I ST Timer1 Clock
T3CK 18 15 12 I ST Timer3 Clock
T3G 6 3 11 I ST Timer3 External Gate Input
U1CTS
12 9 8 I ST UART1 Clear-to-Send Input
U1RTS
13 10 9 O — UART1 Request-to-Send Output
U1RX 6 3 12 I ST UART1 Receive
U1TX 11 8 11 O — UART1 Transmit
ULPWU 3 1 3 I ANA Ultra Low-Power Wake-up Input
V
DD 20 17 14 P — Positive Supply for Peripheral Digital Logic and I/O Pins
V
REF+ 2 19 2 I ANA A/D Reference Voltage Input (+)
V
REF- 3 20 3 I ANA A/D Reference Voltage Input (-)
V
SS 19 16 13 P — Ground Reference for Logic and I/O Pins
TABLE 1-5: PIC24F16KL20X/10X FAMILY PINOUT DESCRIPTIONS (CONTINUED)
Function
Pin Number
I/O Buffer Description
20-Pin
PDIP/
SSOP/
SOIC
20-Pin
QFN
14-Pin
PDIP/
TSSOP
Legend: TTL = TTL input buffer ST = Schmitt Trigger input buffer
ANA = Analog level input/output I
2
C = I
2
C™/SMBus input buffer