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ADM6384 Arkusz danych(PDF) 1 Page - Analog Devices |
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ADM6384 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 12 page Microprocessor Supervisory Circuit in 4-Lead SC70 ADM6384 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. Specifications subject to change without notice. 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 owners. 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 © 2005 Analog Devices, Inc. All rights reserved. FEATURES Precision power supply monitoring 31 reset threshold options 1.58 V to 5.0 V Four reset timeouts 1 ms, 20 ms, 140 ms, 1120 ms Manual reset input Reset output stage Push-pull active-low Guaranteed reset output valid to VCC = 1 V Power supply glitch immunity Specified over −40°C to +125°C temperature range 4-lead SC70 package APPLICATIONS Microprocessor systems Computers Controllers Intelligent instruments Portable equipment GENERAL DESCRIPTION The ADM6384 is a supervisory circuit that monitors power supply voltage levels in microprocessor-based systems. A power-on reset signal is generated when the supply voltage rises to a preset threshold level. The debounced manual reset input of the ADM6384 can be used to initiate a reset by means of an external push-button or logic signal. The part is available in a choice of 31 reset threshold options, from 1.58 V to 5.0 V. The minimum reset timeout periods are 1 ms, 20 ms, 140 ms, and 1120 ms. The ADM6384 is available in a 4-lead SC70 package and typi- cally consumes only 7 μA, making it suitable for use in low power, portable applications. FUNCTIONAL BLOCK DIAGRAMS ADM6384 VCC GND RESET RESET GENERATOR DEBOUNCE MR VREF Figure 1. RESET RESET MR GND GND ADM6384 VCC VCC μP 100k Ω Figure 2. |
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