Datasheet > G696

G696

更新时间： 2024-11-08 22:48:51

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描述
Microprocessor Reset IC

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数据手册

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G696 数据手册

Global Mixed-mode Technology Inc.

G696/G697

Microprocessor Reset IC

Features

General Description

ꢀPrecision Monitoring of +3V, +3.3V, and +5V

Power-Supply Voltages

The G696/G697 are microprocessor (µP) supervisory

circuits used to monitor the power supplies in µP and

digital systems. They provide excellent circuit reliability

and low cost and adjustments when used with +5V,

+3.3V, +3.0V- powered circuits.

^ꢀFully Specified Over Temperature

^ꢀAvailable in Three Output Configurations

Push-Pull RESET Output (G696L)

Push-Pull RESET Output (G696H)

These circuits perform a single function: they assert a

reset signal whenever the V_CCsupply voltage declines

below a preset threshold, with hysteresis keeping it

asserted for time delay determined by externally pro-

gramable time delay generator. after V_CChas risen

above the reset threshold. Reset thresholds suitable

for operation with a variety of supply voltages are

available.

Open-Drain RESET Output (G697L)

^ꢀExternally Programmable Time Delay Generator

^ꢀ6µA Supply Current

^ꢀGuaranteed Reset Valid to V_CC= 0.8V

^ꢀPower Supply Transient Immunity

^ꢀ5 pin SOT23-5 Packages

Applications

The G697L has an open-drain output stage, while the

G696 have push-pull outputs. The G697L’s open-drain

RESET output requires a pull-up resistor that can be

connected to a voltage higher than V_CC. The G696L

have an active-low RESET output, while the G696H

has an active-high RESET output. The reset com-

parator is designed to ignore fast transients on V_CC,

and the outputs are guaranteed to be in the correct

logic state for V_CCdown to 0.8V.

^ꢀComputers

^ꢀControllers

^ꢀIntelligent Instruments

^ꢀCritical µP and µC Power Monitoring

^ꢀPortable / Battery-Powered Equipment

^ꢀAutomotive

Low supply current makes the G696/G697 ideal for

use in portable equipment. The G696/G697 are avail-

able in 5-pin SOT23-5 packages.

Ordering Information

PART

G696H(L)xxxT1 -40°C ~ +105°C

G697LxxxT1 -40°C ~ +105°C

* xxx specifies the threshold voltage.

TEMP. RANGE

PIN-PACKAGE

SOT23-5

e.g. 263 denotes the 2.63V threshold voltage.

Pin Configuration

Typical Operating Circuit

V_CC

C_D

RESET(RESET)

V_CC

R_pull-up*

V_CC

G696/G697

SOT23-5

G696/G697

µP

RESET

C_D

INPUT

(RESET)

N.C.

GND

C_D

()is for G696H

*G697 ONLY

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.1

Jul 26, 2002

12 3 4 5 6 7 8

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