ADM6384(Rev0) 查看數據表（PDF） - Analog Devices

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ADM6384
(Rev.:Rev0)

Microprocessor Supervisory Circuit in 4-Lead SC70

Analog Devices 

FEATURES

Precision power supply monitoring

31 reset threshold options

1.58 V to 5.0 V

Four reset timeouts

1 ms, 20 ms, 140 ms, 1120 ms

Manual reset input

Reset output stage

Push-pull active-low

Guaranteed reset output valid to VCC = 1 V

Power supply glitch immunity

Specified over −40°C to +125°C temperature range

4-lead SC70 package

APPLICATIONS

Microprocessor systems

Computers

Controllers

Intelligent instruments

Portable equipment

GENERAL DESCRIPTION

The ADM6384 is a supervisory circuit that monitors power

supply voltage levels in microprocessor-based systems. A

power-on reset signal is generated when the supply voltage

rises to a preset threshold level. The debounced manual reset

input of the ADM6384 can be used to initiate a reset by means

of an external push-button or logic signal.

The part is available in a choice of 31 reset threshold options,

from 1.58 V to 5.0 V. The minimum reset timeout periods are

1 ms, 20 ms, 140 ms, and 1120 ms.

The ADM6384 is available in a 4-lead SC70 package and typi-

cally consumes only 7 μA, making it suitable for use in low

power, portable applications.

Microprocessor Supervisory

Circuit in 4-Lead SC70

ADM6384

FUNCTIONAL BLOCK DIAGRAMS

ADM6384

VCC

VREF

RESET

GENERATOR

RESET

MR

DEBOUNCE

GND

Figure 1.

VCC

ADM6384

MR

RESET

GND

VCC

μP

RESET

100kΩ

GND

Figure 2.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved.

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