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ADM1232AN 데이터시트(PDF) 1 Page - Analog Devices |
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ADM1232AN 데이터시트(HTML) 1 Page - Analog Devices |
1 / 12 page Microprocessor Supervisory Circuit ADM1232 Rev. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 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 ©1997–2008 Analog Devices, Inc. All rights reserved. FEATURES Pin-compatible with MAX1232 and Dallas DS1232 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 Specified from −40°C to +85°C APPLICATIONS Microprocessor systems Portable equipment Computers Controllers Intelligent instruments Automotive systems FUNCTIONAL BLOCK DIAGRAM VCC TOLERANCE PB RESET TD 5%/10% TOLERANCE SELECT RESET GND DEBOUNCE VREF RESET WATCHDOG TIMER WATCHDOG TIME-BASE SELECT STROBE ADM1232 Figure 1. GENERAL DESCRIPTION The ADM1232 is pin-compatible with the MAX1232, DS1232LP, and DS1232. The Analog Devices, Inc., ADM1232 is a micro- processor monitoring circuit that can monitor the following: • Microprocessor supply voltage • Whether a microprocessor has locked up • External interrupts The ADM1232 is available in four packages: an 8-lead MSOP (RM-8), an 8-lead PDIP (N-8), a 16-lead wide SOIC (RW-16), and an 8-lead narrow SOIC (R-8). MICROPROCESSOR GND TD TOLERANCE RESET STROBE RESET I/O ADM1232 5V 5V 10kΩ Figure 2. Typical Supply Monitoring Application |
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