產品詳情

General Description

The G682/G683 microprocessor (μP) supervisory circuits monitor system voltages in μP and digital systems. They provide excellent circuit reliability at low cost by eliminating external components. 

Since the sense pin is separated from power supply, it allows the IC to monitor added power supply. Usingthe IC with the sense pin separated from power supply enables output to maintain the state of detection even when voltage of the monitored power supply drops to 0V. The VSEN pin of G68_ _09T_ is high impedance and can be used for application of reset threshold programming.

Moreover, with the built-in delay circuit, connecting the delay capacitance pin to the capacitor enables the IC to provide an arbitrary release delay time.

Features

■ Monitor Supply Voltages from 0.9V to 1.8V

■ ±2% Reset Threshold Accuracy

■ Capacitor-Adjustable Reset Timeout Period tRP (ms) ≅ 2.7 × CD (nF) at VCC=3.3V

■ Low Quiescent Current : 10μA at VCC =3.3V

■ Available in three RESET Output Options

Push-Pull RESET Output (G682L)

Push-Pull RESET Output (G682H)

Open-Drain RESET (G683L)

■ Programmable Reset Threshold Application (G68_ _09T_)

■ Guaranteed Reset Valid to VCC = 1V

■ Power-Supply Transient Immunity

Applications

■ Computers

■ Controllers

■ Intelligent Instruments

■ Critical μP and μC Power Monitoring

■ Portable/Battery-Powered Equipment

■ Telecom/Networking Equipment