Datasheet > G674

G674

更新时间： 2024-11-17 01:25:15

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Microprocessor Reset IC

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G674 数据手册

G674/G675

Global Mixed-mode Technology

Microprocessor Reset IC

Features

General Description

Precision Monitoring of +2.5V and +3V

The G674/G675 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 +2.5V,

+3.0V powered circuits.

Power-Supply Voltages

Fully Specified Over Temperature

Available in Three Output Configurations

Push-Pull RESET Output (G674L)

Push-Pull RESET Output (G674H)

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 programmable time

delay generator after V_CChas risen above the reset thresh-

old. Reset thresholds suitable for operation with a variety of

supply voltages are available.

Open-Drain RESET Output (G675L)

Externally Programmable Time Delay Generator

14µA Supply Current

Guaranteed Reset Valid to V_CC= 0.8V

Power Supply Transient Immunity

5 pin SOT-23-5 and 6 pin TDFN2X2 Packages

2% Threshold Accuracy

The G675L has an open-drain output stage, while the

G674 have push-pull outputs. The G675L’s open-drain

Applications

RESET output requires a pull-up resistor that can be

connected to a voltage higher than V_CC. The G674L have

Computers

Controllers

an active-low RESET output, while the G674H has an

active-high RESET output. The reset comparator is de-

signed to ignore fast transients on V_CC, and the outputs

are guaranteed to be in the correct logic state for V_CC

down to 0.8V.

Intelligent Instruments

Critical µP and µC Power Monitoring

Portable / Battery-Powered Equipment

Automotive

Low supply current makes the G674/G675 ideal for use in

portable equipment. The G674/G675 are available in

5-pin SOT-23-5 and 6 pin TDFN2X2 packages.

Ordering Information

ORDER

NUMBER

TEMP.

RANGE

PACKAGE

(Green)

G674HxxxT1U

G674LxxxT1U

G675LxxxT1U

G674HxxxRB1U

G674LxxxRB1U

G675LxxxRB1U

-40°C ~ +105°C

SOT-23-5

TDFN2X2-6

* xxx specifies the threshold voltage.

e.g. 240 denotes the 2.4V threshold voltage.

Pin Configuration

Typical Application Circuit

V_CC

G674/G675

VCC

R_pull-up*

RESET(RESET)

GND

RESET(RESET)

VCC

G674/G675

Thermal

Pad

µP

N.C.

VCC

GND

G674/G675

SOT-23-5

RESET

(RESET)

INPUT

N.C.

GND

TDFN2X2-6

C_D

Note: Recommend connecting the Thermal Pad

to the Ground for excellent power dissipation.

()is for G674H

*G675 ONLY

ICC may increased at high T_A, Therefore, can not connect

Resistors to VCC to prevent Icc abnormal behavior at high T_A.

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.3

Apr 10, 2012

中文翻译

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与G674相关器件

型号	品牌	获取价格	描述	数据表
G674/5	GMT	获取价格	G674H/L is a Push-Pull High/Low Reset G675L i
G-674-12X	MOLEX	获取价格	InsulKrimp? Ring Tongue Terminal for 2 AWG Wire
G-674-12XT	MOLEX	获取价格	Ring Terminal
G-674-14X	MOLEX	获取价格	InsulKrimp? Ring Tongue Terminal for 2 AWG Wire
G-674-14XT	MOLEX	获取价格	Ring Terminal
G6742	HAMAMATSU	获取价格	InGaAs PIN photodiode
G6742-003	HAMAMATSU	获取价格	InGaAs PIN photodiode
G6742-01	HAMAMATSU	获取价格	InGaAs PIN photodiode
G-674-58X	MOLEX	获取价格	Ring Terminal,
G-674-58XT	MOLEX	获取价格	Ring Terminal

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