Datasheet > ADM699_15

ADM699_15

更新时间： 2024-11-17 01:21:19

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亚德诺 - ADI		/
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描述
Microprocessor Supervisory Circuits

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ADM699_15 数据手册

Microprocessor

Supervisory Circuits

ADM698/ADM699

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Superior Upgrade for MAX698/MAX699

Guaranteed RESET Assertion with V_CC= 1 V

Low 0.6 mA Supply Current

Precision 4.65 V Voltage Monitor

Power OK/Reset Time Delay

Watchdog Timer

ADM698/

ADM699

RESET

GENERATOR

RESET

Minimum Component Count

Performance Specified over Temperature

4.65V

APPLICATIONS

Microprocessor Systems

Computers

WATCHDOG

INPUT

WATCHDOG

OUTPUT WDO*

TRANSITION DETECTOR

(1 sec)

WDI

Controllers

Intelligent Instruments

Automotive Systems

Critical ␮P Power Monitoring

WDI (ADM699 ONLY)

RESET (SOIC ONLY)

WDO (ADM699 SOIC ONLY)

TYPICAL APPLICATION CIRCUIT

GENERAL DESCRIPTION

+5V

The ADM698/ADM699 supervisory circuits provide power

supply monitoring and watchdog timing for microprocessor

systems.

µP POWER

µP RESET

RESET

The ADM698 monitors the 5 V V_CCpower supply and gener-

ates a RESET pulse during power up, power down and during

low voltage “Brown Out” conditions. The RESET output is

guaranteed to be functional (logic low) with V_CCas low as 1 V.

ADM698/

ADM699

µP SYSTEM

I/O LINE

WDI

The ADM699 features an identical monitoring circuit as in the

ADM698 plus an additional watchdog timer input to monitor

microprocessor activity. The RESET output is forced low if the

watchdog input is not toggled within the 1 second watchdog

timeout period.

GND

*ADM699 ONLY

Both parts are available in 8-pin plastic DIP and 16-lead SOIC

packages. The 16-lead SOIC contains additional outputs

RESET (without inversion) and Watchdog Output WDO

(ADM699 only).

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: 617/329-4700 Fax: 617/326-8703

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与ADM699_15相关器件

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ADM6992C	INFINEON	获取价格	Two Port Bridge Fiber to Fast Ethernet Converter
ADM6992CX	INFINEON	获取价格	Two Port Bridge Fiber to Fast Ethernet Converter
ADM6992F	INFINEON	获取价格	Fiber to Fast Ethernet Converter
ADM6992FX	INFINEON	获取价格	Fiber to Fast Ethernet Converter
ADM6993F	INFINEON	获取价格	LAN Controller, 4 Channel(s), 12.5MBps, CMOS, PQFP128, PLASTIC, QFP-128
ADM6993FX	INFINEON	获取价格	LAN Controller, 4 Channel(s), 12.5MBps, CMOS, PQFP128, GREEN, PLASTIC, QFP-128
ADM6993X-AD-T-1	INFINEON	获取价格	ADM6993/X HDLC to Fast Ethernet Converter
ADM6995	ETC	获取价格	5 PORT 10/100 MB/S SINGLE CHIP ETHIERNET SWITCH CONTROLLER
ADM6995L	INTEL	获取价格	LAN Controller, 5 Channel(s), 12.5MBps, CMOS, PQFP128, PLASTIC, QFP-128
ADM6995LC-AC-T-1	INFINEON	获取价格	LAN Controller, 5 Channel(s), 12.5MBps, CMOS, PQFP128, PLASTIC, QFP-128

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