Microchip Technology DM183021 データシート

DS39616D-page 20

 2010 Microchip Technology Inc.

PORTA is a bidirectional I/O port.

RA0/AN0

RA0
AN0

2

19

19

I/O

I

TTL

Analog

Digital I/O.
Analog Input 0.

RA1/AN1

RA1
AN1

3

20

20

I/O

I

TTL

Analog

Digital I/O.
Analog Input 1.

RA2/AN2/V

REF

-/CAP1/

INDX

RA2
AN2
V

REF

-

CAP1
INDX

4

21

21

I/O

I
I
I
I

TTL

Analog
Analog

ST
ST

Digital I/O.
Analog Input 2.
A/D reference voltage (low) input. 
Input Capture Pin 1.
Quadrature Encoder Interface index input pin.

RA3/AN3/V

REF

+/

CAP2/QEA

RA3
AN3
V

REF

+

CAP2
QEA

5

22

22

I/O

I
I
I
I

TTL

Analog
Analog

ST
ST

Digital I/O.
Analog Input 3.
A/D reference voltage (high) input. 
Input Capture Pin 2.
Quadrature Encoder Interface Channel A input pin.

RA4/AN4/CAP3/QEB

RA4
AN4
CAP3
QEB

6

23

23

I/O

I
I
I

TTL

Analog

ST
ST

Digital I/O.
Analog Input 4.
Input Capture Pin 3.
Quadrature Encoder Interface Channel B input pin.

RA5/AN5/LVDIN

RA5
AN5
LVDIN

7

24

24

I/O

I
I

TTL

Analog
Analog

Digital I/O.
Analog Input 5.
Low-Voltage Detect input.

TTL = TTL compatible input 

CMOS = CMOS compatible input or output 

ST = Schmitt Trigger input with CMOS levels 

I

= Input 

O

= Output 

P

= Power 

RC3 is the alternate pin for T0CKI/T5CKI; RC4 is the alternate pin for SDI/SDA; RC5 is the alternate pin 
for SCK/SCL; RC7 is the alternate pin for SDO.

RD4 is the alternate pin for FLTA.

RD5 is the alternate pin for PWM4.