PIC18LF4523T-I/SO 查看數據表（PDF） - Microchip Technology

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PIC18LF4523T-I/SO

28/40/44-Pin, Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2423/2523/4423/4523

TABLE 1-2: PIC18F2423/2523 PINOUT I/O DESCRIPTIONS (CONTINUED)

Pin Name

Pin Number

Pin Buffer

PDIP,

SOIC

QFN

Type

Type

Description

PORTA is a bidirectional I/O port.

RA0/AN0

RA0

AN0

2 27

I/O TTL Digital I/O.

I Analog Analog Input 0.

RA1/AN1

RA1

AN1

3 28

I/O TTL Digital I/O.

I Analog Analog Input 1.

RA2/AN2/VREF-/CVREF

4

1

RA2

I/O TTL Digital I/O.

AN2

I Analog Analog Input 2.

VREF-

I Analog A/D reference voltage (low) input.

CVREF

O Analog Comparator reference voltage output.

RA3/AN3/VREF+

RA3

AN3

VREF+

5

2

I/O TTL Digital I/O.

I Analog Analog Input 3.

I Analog A/D reference voltage (high) input.

RA4/T0CKI/C1OUT

RA4

T0CKI

C1OUT

6

3

I/O ST

Digital I/O.

I ST

Timer0 external clock input.

O—

Comparator 1 output.

RA5/AN4/SS/HLVDIN/

C2OUT

RA5

AN4

SS

HLVDIN

C2OUT

7

4

I/O TTL

I Analog

I TTL

I Analog

O—

Digital I/O.

Analog Input 4.

SPI slave select input.

High/Low-Voltage Detect input.

Comparator 2 output.

RA6

See the OSC2/CLKO/RA6 pin.

RA7

See the OSC1/CLKI/RA7 pin.

Legend:

Note 1:

2:

TTL = TTL compatible input

ST = Schmitt Trigger input with CMOS levels

O = Output

I2C = I2C™/SMBus

CMOS = CMOS compatible input or output

I

= Input

P

= Power

Default assignment for CCP2 when Configuration bit, CCP2MX, is set.

Alternate assignment for CCP2 when Configuration bit, CCP2MX, is cleared.

© 2009 Microchip Technology Inc.

DS39755C-page 15

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