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ADM6711RAKS Datasheet(PDF) 1 Page - Analog Devices |
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ADM6711RAKS Datasheet(HTML) 1 Page - Analog Devices |
1 / 8 page 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. 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 companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. ADM6711/ADM6713 Microprocessor Supervisory Circuit in 4-Lead SC70 FUNCTIONAL BLOCK DIAGRAMS VREF VCC RESET GENERATOR 240 ms ADM6711 RESET GND DEBOUNCE MR VREF VCC RESET GENERATOR 240 ms ADM6713 RESET GND DEBOUNCE MR FEATURES Specified Over Temperature Low Power Consumption (12 A) Precision Monitoring of 2.5 V, 3 V, 3.3 V, and 5 V Power Supply Voltages Reset Timeout Period of 140 ms (Min) Manual Reset Input Output Stages Push-Pull RESET Output (ADM6711) Open-Drain RESET Output (ADM6713) Reset Assertion Down to 1 V VCC Power Supply Glitch Immunity 4-Lead SC70 Package APPLICATIONS Microprocessor Systems Computers Controllers Intelligent Instruments Automotive Systems Portable Instruments GENERAL DESCRIPTION The ADM6711/ADM6713 are reset generator circuits suitable for use in microprocessor based systems. They provide a reset signal on power-up, power-down, and whenever the supply volt- age falls below a preset threshold. In addition, both parts have a debounced manual reset input so that a reset signal can also be initiated with an external switch or logic signal. With six different reset threshold options available ranging from 2.32 V to 4.63 V, the ADM6711/ADM6713 are suitable for monitoring 2.5 V, 3 V, 3.3 V, and 5 V supplies. A reset timeout of at least 140 ms occurs when VCC rises above the threshold. This gives the supply voltage time to stabilize before the micro- processor starts up. The ADM6711 has a push-pull output, so no additional external components are needed. The ADM6713’s open-drain output requires an external pull-up resistor, which can be connected to a voltage higher than VCC, if desired. The parts are highly reliable with accurate voltage references and immunity to fast, negative-going transients on VCC. Low current consumption and space-efficient 4-lead SC70 packaging make the ADM6711/ADM6713 ideal for use in low power portable applications. RESET RESET GND GND VCC VCC P SYSTEM ADM6711/ ADM6713 VCC *RPULL-UP *ADM6713 ONLY MR Figure 1. Typical Operating Circuit |
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