GS809C中文資料威世科技數(shù)據(jù)手冊PDF規(guī)格書

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 40μs (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 3μA 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: < 3μA

? 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

Applications

? Computers

? Battery Powered Equipment

? Critical uProcessor and uController power supply monitoring

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