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GS810C Scheda tecnica(PDF) 1 Page - Vishay Siliconix |
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GS810C Scheda tecnica(HTML) 1 Page - Vishay Siliconix |
1 / 6 page 1 2 3 GND Reset Output Vcc Description • The GS809C and 810C are system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. • When the processor power supply voltage drops below the reset threshold, the reset output is driven active, in less than 40 µs (TD1). Reset is main- tained active for a time period (TD2), after the Vcc rises above the threshold voltage. • To prevent jitter, the reset threshold voltage has a built-in hysteresis of 0.4% of VTH. • The GS809C has an active-low reset output, while the GS810C has an active-high reset output. Both devices have push/pull output drives. • The reset signal is guaranteed valid, down to Vcc = 1.0V. • Low supply current of 3 µA makes these devices well suited for battery powered applications. They are designed to reject fast transients from causing false resets. • Both devices are available in a space-saving SOT-23 package. Features • Tight reset voltage tolerances ± 1.5% • 4 reset active timeout period options • Low quiescent current: < 3 µA • 9 reset threshold options from 2.1V to 4.63V • Reset output guaranteed down to 1.0V • No external components • Vcc Transient immunity • Wide temperature range –40°C to +85°C VCC VCC GS809C VCC Processor Reset Reset Input GND GND Fig. 1 – Typical Application Diagram Pin Configuration SOT-23 (Top View) Applications • Computers • Battery Powered Equipment • Critical uProcessor and uController power supply monitoring GS809C and GS810C Vishay formerly General Semiconductor Document Number 74808 www.vishay.com 01-Nov-02 1 New Product Microprocessor Reset Monitors |
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