PIC16F882-E/ML 查看數據表（PDF） - Microchip Technology

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PIC16F882-E/ML

28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16F882/883/884/886/887

3.2.3

PIN DESCRIPTIONS AND

DIAGRAMS

Each PORTA pin is multiplexed with other functions. The

pins and their combined functions are briefly described

here. For specific information about individual functions

such as the comparator or the A/D Converter (ADC),

refer to the appropriate section in this data sheet.

FIGURE 3-1:

BLOCK DIAGRAM OF RA0

Data Bus

3.2.3.1 RA0/AN0/ULPWU/C12IN0-

Figure 3-1 shows the diagram for this pin. This pin is

configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• a negative analog input to Comparator C1 or C2

• an analog input for the Ultra Low-Power Wake-up

VDD

WR

PORTA

DQ

CK Q

WR

TRISA

DQ

CK Q

RD

TRISA

RD

PORTA

I/O Pin

VSS

-

+

VTRG

01

Analog(1)

Input Mode

IULP

VSS

ULPWUE

To Comparator

To A/D Converter

Note 1: ANSEL determines Analog Input mode.

DS41291G-page 44

 2006-2012 Microchip Technology Inc.

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