G671L263T93U datasheet pdf GMT Microprocessor Reset IC GMT Electronic Components Agent

The G670/G671 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V- powered circuits.

These circuits perform a single function: they assert a reset signal whenever the V CC supply voltage declines below a preset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.

The G671L has an open-drain output stage, while the G670 have push-pull outputs. The G671L’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The G670L have an active-low RESET output, while the G670H has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V.

Low supply current makes the G670/G671 ideal for use in portable equipment. The G670/G671 are avail- able in 3-pin SOT-23, TO-92, SC-70-3(SOT-323) and SOT-89 packages.

Features
Precision Monitoring of +3V, +3.3V, and +5V
Power-Supply Voltages
Fully Specified Over Temperature
Available in Three Output Configurations
Push-Pull RESET Output (G670L)
Push-Pull RESET Output (G670H)
Open-Drain RESET Output (G671L)
2ms max Power-On Reset Pulse Width
14μA Supply Current
Guaranteed Reset Valid to VCC = +1V
Power Supply Transient Immunity
No External Components
3-Pin SOT-23,TO-92, SC-70-3(SOT-323) and
SOT-89 Packages
2% Reset Threshold Accuracy with 5% Hysteresis

Applications
Computers
Controllers
Intelligent Instruments
Critical μP and μC Power Monitoring
Portable / Battery-Powered Equipment
Automotive

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