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ADM1232ARW Folha de dados(PDF) 1 Page - Analog Devices |
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ADM1232ARW Folha de dados(HTML) 1 Page - Analog Devices |
1 / 6 page REV. B 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. a ADM1232 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1997 Microprocessor Supervisory Circuit FUNCTIONAL BLOCK DIAGRAM GND PB RESET TOLERANCE TD RESET ADM1232 RESET GENERATOR RESET DEBOUNCE WATCHDOG TIMEBASE SELECT WATCHDOG TIMER VCC 5%/10% TOLERANCE SELECT VREF FEATURES Superior Upgrade for MAX1232 and Dallas DS1232 Low Power Consumption (500 A max) Adjustable Precision Voltage Monitor with +4.5 V and +4.75 V Options Adjustable STROBE Monitor with 150 ms, 600 ms or 1.2 sec Options No External Components APPLICATIONS Microprocessor Systems Portable Equipment Computers Controllers Intelligent Instruments Automotive Systems Protection Against Damage Caused by P Failure GENERAL DESCRIPTION The ADM1232 is a superior, pin-compatible upgrade for the MAX1232 and the DS1232LP and DS1232. The Analog Devices ADM1232 is a microprocessor monitoring circuit that can monitor: 1. Microprocessor Supply Voltage. 2. Whether a Microprocessor has locked-up. 3. An External Interrupt. The ADM1232 is available in four different packages: 1. The ADM1232ARM in an 8-lead microSOIC (RM-8). 2. The ADM1232AN in an 8-lead PDIP (N-8). 3. The ADM1232ARW in a 16-lead wide SOIC (R-16). 4. The ADM1232ARN is an 8-lead narrow SOIC (R-8). ADM1232 ADM1232 STROBE TOLERANCE RESET GND TD ADM1232 RESET MICROPROCESSOR STROBE TOLERANCE I/O +5V RESET 10k +5V Figure 1. Typical Supply Monitoring Application |
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