Datasheet > G671L263T72UF

G671L263T72UF

更新时间： 2024-11-16 16:06:35

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描述
Power Management Circuit, Fixed, +2.64VV

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G671L263T72UF 数据手册

Global Mixed-mode Technology Inc.

G670/G671

Microprocessor Reset IC

Features

General Description

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

The G670/G671 are microprocessor (µP) supervisory

circuits used to monitor the power supplies in µP and

digital systems. They provide excellent circuit reliability

and low cost by eliminating external components and

adjustments when used with +5V, +3.3V, +3.0V- pow-

ered circuits.

Power-Supply Voltages

Fully Specified Over Temperature

Available in Three Output Configurations

Push-Pull RESET Output (G670L)

Push-Pull RESET Output (G670H)

Open-Drain RESET Output (G671L)

2ms max Power-On Reset Pulse Width

14µA Supply Current

Guaranteed Reset Valid to V_CC= +1V

Power Supply Transient Immunity

No External Components

These circuits perform a single function: they assert a

reset signal whenever the V_CCsupply voltage declines

below a preset threshold. Reset thresholds suitable for

operation with a variety of supply voltages are avail-

able.

The G671L has an open-drain output stage, while the

G670 have push-pull outputs. The G671L’s open-drain

3-Pin SOT-23,TO-92 and SOT-89 Packages

2% Threshold Accuracy

RESET output requires a pull-up resistor that can be

connected to a voltage higher than V_CC. The G670L

have an active-low RESET output, while the G670H

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 1V.

Applications

Computers

Controllers

Intelligent Instruments

Critical µP and µC Power Monitoring

Portable / Battery-Powered Equipment

Automotive

Low supply current makes the G670/G671 ideal for

use in portable equipment. The G670/G671 are avail-

able in 3-pin SOT-23, TO-92 and SOT-89 packages.

Pin Configuration

Typical Application

V_CC

VCC

R_PULL-UP

Top

View

G670/G671

TTooppVVieieww

µP

RESET

(RESET)

INPUT

GND

SOT-89

SOT-23

TO-92

*G671 only

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 1.5

Dec 03, 2005

12 3 4 5 6 7...13

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