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PCS809JIURF Datasheet(PDF) 1 Page - PulseCore Semiconductor |
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PCS809JIURF Datasheet(HTML) 1 Page - PulseCore Semiconductor |
1 / 8 page January 2007 PCS809/PCS810 rev 0.2 Notice: The information in this document is subject to change without notice. PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018 www.pulsecoresemi.com 3-Pin µP Voltage Supervisor FEATURES • Ultra Low Supply Current 1µA(typ.) • Guaranteed Reset Valid to VCC=0.9V • Available in three Output Types: Open Drain Active Low (PCS809N), Push-Pull Active Low (PCS809), Push-Pull Active High (PCS810) • 140ms Min. Power-On Reset Pulse Width • Internally Fixed Threshold 2.3V, 2.6V, 2.9V, 3.1V, 4.0V, 4.4V, and 4.6V • Tight Voltage Threshold Tolerance: 1.5% • Low profile Package: SOT-23-3 APPLICATIONS • Notebook Computers • Digital Still Cameras • PDAs • Critical Microprocessor Monitoring RESET THRESHOLD Suffix Voltage(V) L 4.6 M 4.4 J 4.0 T 3.1 S 2.9 R 2.6 P 2.3 DESCRIPTION PCS809/PCS810 are low-power microprocessor (µP) supervisory circuits used to monitor power supplies in µP and digital systems. They provide applications with benefits of circuit reliability and low cost by eliminating external components. These devices perform as valid singles in applications with VCC ranging from 6.0V down to 0.9V. The reset signal lasts for a minimum period of 140ms whenever VCC supply voltage falls below preset threshold. Both PCS809 and PCS810 were designed with a reset comparator to help identify invalid signals, which last less than 140ms. The only difference between them is that they have an active-low RESET output and active-high RESET output, respectively. Low supply current (1µA) makes PCS809/PCS810 ideal for portable equipment. The devices are available in 3- SOT-23 package Typical Operating Circuit VCC GND GND VCC VCC RESET (RESET) RESET INPUT PCS809 (PCS810) µP Push-Pull Output |
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