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ADM809-5SCHIPS

更新时间： 2024-11-08 22:53:35

品牌	Logo	应用领域
亚德诺 - ADI		微处理器监控
页数	文件大小	规格书
6页	96K
描述
Microprocessor Supervisory Circuit

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数据手册

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ADM809-5SCHIPS 数据手册

Microprocessor

Supervisory Circuit

ADM809-5S/L

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Specified Over Temperature

Low Power Consumption (17 ␮A)

Precision Voltage Monitor: 3 V, 5 V Options

Reset Assertion Down to 1 V V_CC

30 ms min Power-On Reset

Logic Low RESET Output

ADM809-5S/L

RESET

GENERATOR

55ms

RESET

REF

APPLICATIONS

Microprocessor Systems

Computers

GND

Controllers

Intelligent Instruments

Automotive Systems

GENERAL DESCRIPTION

The ADM809-5S/L supervisory circuits monitor the power

supply voltage in microprocessor systems. It provides a reset

output during power-up, power-down and brownout conditions.

On power-up, an internal timer holds reset asserted for 55 ms.

This holds the microprocessor in a reset state until conditions

have stabilized. The RESET output remains operational with

V_CCas low as 1 V. The ADM809-5S/L provides an active low

reset signal (RESET).

ADM809-5S/L

RESET

INPUT

␮P

SYSTEM

RESET

GND

The reset comparator features built-in glitch immunity,

Figure 1. Typical Operating Circuit

making it immune to fast transients on V_CC

The ADM809-5S/L consumes only 17 µA, making it suitable

for low power portable equipment.

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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