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標題: ZC811 reset芯片替代MAX811 [打印本頁]

作者: XX9 時間: 2023-8-15 11:21
標題: ZC811 reset芯片替代MAX811

Description

The ZC811is a low-power microprocessor (μP) supervisory circuit used to monitor power suppliesin microprocessor and digital systems. Low supply current makes the ZC811ideal for use in portable equipment. The device comes in a 4-pin SOT-143 package. The ZC811provides excellent circuit reliability and low BOM cost by eliminating external components and adjustments when used with 5V-powered or 3V-powered circuits. The ZC811also provides a debounced manual reset input.

The function of this device is to assert a reset if either the power supply drops below a designed reset threshold level or MR is forced low. Thereset comparator is designed to ignore fast transients on VCC. Reset thresholds are available for operation with a variety of supply voltages.

Features

• Precision voltage monitor for 3V, 3.3V or 5V power supplies 1V

•140ms minimum reset pulse widt

• Reset remains valid with VCC as low as havailable

•3μA typical supply current

• Available in 4-pin SOT-143 package

Applications

l •Computer

l •Controller

l• Intelligent Instruments

l• Critical uP and uC Power Monitoring

l• Portable/Battery-Powered Equipment

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