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SS809-40GU Datasheet(PDF) 1 Page - Silicon Standard Corp. |
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SS809-40GU Datasheet(HTML) 1 Page - Silicon Standard Corp. |
1 / 8 page www.SiliconStandard.com 1 of 8 SS809/810G 9/20/2006 Rev.3.01 3-Pin Microprocessor Reset Circuits FEATURES Ultra-low supply current 1 µA (typ.) Guaranteed reset valid to Vcc=0.9V Available in three output types: Open-drain active low (SS809N-xxGx) Push-pull active low (SS809-xxGx) Push-pull active high (SS810-xxGx) Power-on reset pulse width min. 140ms Internally fixed threshold 2.3V, 2.6V, 2.9V, 3.1V, 4.0V, 4.4V, 4.6V Tight voltage threshold tolerance: 1.5% Packaged in RoHS-compliant SOT-23-3 APPLICATIONS l Notebook Computers l Digital Still Cameras l PDAs l Critical Microprocessor Monitoring DESCRIPTION The SS809G and SS810G are low-power microprocessor (µP) supervisory circuits used to monitor power supplies in µP and digital systems. They improve circuit reliability and reduce cost by eliminating external components. These devices provide valid signals in applications with Vcc ranging from 6.0V down to 0.9V. The reset signal lasts for a minimum period of 140ms whenever the VCC supply voltage falls below a preset threshold. Both the SS809G and SS810G were designed with a reset comparator to help identify invalid signals lasting less than 140ms. The only difference between the two devices is that one has an active-low RESET output and the other an active-high RESET output. Low supply current (1 µA) makes the SS809G and SS810G ideal for portable equipment. The devices are available in a SOT-23-3 package. TYPICAL APPLICATION CIRCUIT Push-Pull Output VCC VCC GND GND µP RESET INPUT RESET (RESET) VCC SS809G (SS810G) |
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