TC820CPL datasheet(3/28 Pages) MICROCHIP

Nome de Peças	TC820CPL

Descrição Electrónicos	3-3/4 Digit A/D Converter with Frequency Counter and Logic Probe

PDF	28 Pages

Scroll/Zoom	100%

Fabricante Electrônico	MICROCHIP [Microchip Technology]

Página de início	http://www.microchip.com

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3 / 28 page

DS21476B-page 3

TC820

Typical Applications

Peak Hold

Comparator

3-3/4 Digit A/D

Converter

Low

Battery

Detect

Decimal

Point

Drivers

Buzzer

Driver

Function

Select

Logic Probe

Auto-Ranging

Frequency

Counter

Clock

Oscillator

Triple LCD

Drivers

Low Drift Voltage

Differential

Reference

Logic High

Logic Low

Over Range

PKHold

Low Batt

Annunciator Drive

Decimal

Point

Select

Buzzer

Control

Function

Select

Digital Ground

To LCD

and Buzzer

Peak

Hold

Logic Probe

Input

Frequency Input

Full Scale Select

Under Range

Over Range

Analog GND

Volts

Frequency

Logic

Triplex LCD

TC820

Analog Input

EOC

Range Frequency

Input

Triples

Drivers

Display

Latch

Comparator

A > B

A/D Counter

(3999 Counts)

Logic

Low

Logic

DP0/LO

DP1/HI

Range/

Frequency

Frequency/

Volts

Buzzer

Driver

BUZIN

Logic

Low

OSC3

OSC2

OSC1

Frequency Counter Input

A/D Counter Select

Range

SEL

Low Batt

Low

Batt

Detect

A/D Control

DEINT

Under Range

Over Range

Range

EOC

DGND UR OR

EOC/

HOLD

PEAK

HOLD

ANNUNC

SEG0 • • • BP3

VDISP

To LCD

VINT

CAZ

Common

VDD

VSS

VREF+

VREF-

TC820

VIN+

VIN-

CREF+CREF-VBUFF

÷2

÷8

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