
2011 Microchip Technology Inc.
DS31037B-page 19
PIC24F16KL402 FAMILY
CVREF
17
14
11
I
ANA
Comparator Voltage Reference Output
CVREF+
2
19
2
I
ANA
Comparator Reference Positive Input Voltage
CVREF-
3
20
3
I
ANA
Comparator Reference Negative Input Voltage
HLVDIN
15
12
6
I
ST
High/Low-Voltage Detect Input
INT0
11
8
12
I
ST
Interrupt 0 Input
INT1
17
14
11
I
ST
Interrupt 1 Input
INT2
14
11
10
I
ST
Interrupt 2 Input
MCLR
1
18
1
I
ST
Master Clear (device Reset) Input. This line is brought
low to cause a Reset.
OSCI
7
4
I
ANA
Main Oscillator Input
OSCO
8
5
O
ANA
Main Oscillator Output
PGEC1
5
2
鈥�
I/O
ST
ICSP Clock 1
PCED1
4
1
鈥�
I/O
ST
ICSP Data 1
PGEC2
2
19
2
I/O
ST
ICSP Clock 2
PGED2
3
20
3
I/O
ST
ICSP Data 2
PGEC3
10
7
I/O
ST
ICSP Clock 3
PGED3
9
6
I/O
ST
ICSP Data 3
RA0
2
19
2
I/O
ST
PORTA Pins
RA1
3
20
3
I/O
ST
RA2
744
I/O
ST
RA3
855
I/O
ST
RA4
10
7
I/O
ST
RA5
1
18
1
I
ST
RA6
14
11
10
I/O
ST
RB0
4
1
鈥�
I/O
ST
PORTB Pins
RB1
5
2
鈥�
I/O
ST
RB2
6
3
鈥�
I/O
ST
RB4
966
I/O
ST
RB7
11
8
鈥�
I/O
ST
RB8
12
9
8
I/O
ST
RB9
13
10
9
I/O
ST
RB12
15
12
鈥�
I/O
ST
RB13
16
13
鈥�
I/O
ST
RB14
17
14
11
I/O
ST
RB15
18
15
12
I/O
ST
REFO
18
15
12
O
鈥�
Reference Clock Output
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
I2C = I2C/SMBus input buffer