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YB1921 - 3-Pin Microprocessor Reset Monitor

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Description

Pin No.

Features

  • z z z z z z z z Precision VCC Monitor for 2.8V, 3.0V, 3.3V, and 5.0V Supplies 140msec Guaranteed Minimum RESET Output Duration RESET Output Guaranteed to VCC=1.0V Low 18μA Supply Current VCC Transient Immunity Small SOT-23 Package No External Components Wide Operating Temperature: 0°C to 85°C.

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Datasheet Details

Part number YB1921
Manufacturer YOBON TECHNOLOGIES
File Size 145.02 KB
Description 3-Pin Microprocessor Reset Monitor
Datasheet download datasheet YB1921 Datasheet
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YB1921 3-Pin Microprocessor Reset Monitor Introduction The YB1921 is a cost-effective system supervisor Integrated Circuit (IC) designed to monitor VCC in digital and mixed signal systems and provide a warning signal when the system power supply is out of working range, and a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 20μsec of VCC falling through the reset voltage threshold. Reset is maintained active for a minimum of 140msec after VCC rises above the reset threshold. The YB1921 has an active-low RESET output. The output of the YB1921 is guaranteed valid down to VCC=1V. The YB1921 is optimized to reject fast transient glitches on the VCC line. Low supply current of 18μA (VCC=3.
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