G697L438T

更新时间： 2024-11-10 22:25:35

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致新 - GMT		微处理器
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8页	213K
描述
Microprocessor Reset IC

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G697L438T 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

^ꢀComputers

^ꢀControllers

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-

^ꢀIntelligent Instruments

^ꢀCritical µP and µC Power Monitoring

^ꢀPortable / Battery-Powered Equipment

^ꢀAutomotive

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.

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

中文翻译

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与G697L438T相关器件

型号	品牌	获取价格	描述	数据表
G697L438T1	GMT	获取价格	暂无描述
G697L438T1F	GMT	获取价格	Power Management Circuit, Fixed, +4.32VV, CMOS, PDSO5
G697L438T1U	GMT	获取价格	Microprocessor Reset IC
G697L438T1UF	GMT	获取价格	Microprocessor Reset IC
G697L438TOU	GMT	获取价格	Microprocessor Reset IC
G697L438TOUF	GMT	获取价格	Microprocessor Reset IC
G697L463T	GMT	获取价格	Microprocessor Reset IC
G697L463T1	GMT	获取价格	暂无描述
G697L463T1F	GMT	获取价格	Power Management Circuit, Fixed, +4.6VV, CMOS, PDSO5
G697L463T1U	GMT	获取价格	Microprocessor Reset IC

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