PIC16F883-ESLASHSOSQTP datasheet(101/288 Pages) MICROCHIP

부품명	PIC16F883-E/SOSQTP

상세설명	28/40/44-Pin, Enhanced Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology

PDF	288 Pages

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제조업체	MICROCHIP [Microchip Technology]

홈페이지	http://www.microchip.com

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101 / 288 page

Preliminary

DS41291D-page 99

PIC16F882/883/884/886/887

9.0

ANALOG-TO-DIGITAL

CONVERTER (ADC) MODULE

The

Analog-to-Digital

Converter

(ADC)

allows

conversion of an analog input signal to a 10-bit binary

representation of that signal. This device uses analog

inputs, which are multiplexed into a single sample and

hold circuit. The output of the sample and hold is

connected to the input of the converter. The converter

generates a 10-bit binary result via successive

approximation and stores the conversion result into the

ADC result registers (ADRESL and ADRESH).

The ADC voltage reference is software selectable to

either VDD or a voltage applied to the external reference

pins.

The ADC can generate an interrupt upon completion of

a conversion. This interrupt can be used to wake-up the

device from Sleep.

Figure 9-1 shows the block diagram of the ADC.

FIGURE 9-1:

ADC BLOCK DIAGRAM

AN0

ADC

AN1

AN2

AN4

AVDD

VREF+

ADON

GO/DONE

VCFG0 = 1

VCFG0 = 0

CHS<3:0>

VSS

AN5

AN6

AN7

AN3

AN8

AN9

AN10

AN11

AN12

AN13

AVSS

VREF-

VCFG1 = 1

VCFG1 = 0

CVREF

Fixed Ref

0000

0001

0010

0011

0100

0101

0111

0110

1000

1001

1010

1011

1100

1101

1110

1111

ADRESH

ADRESL

ADFM

= Left Justify

= Right Justify

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