致新GMT G693L263TCUF SOT-143

　　General Description

　　The G692/G693 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. The G692/G693 also provides a debounced

　　manual reset input.

　　These circuits perform a single function: they assert a

　　reset signal whenever the VCC supply voltage declines

　　below a preset threshold, keeping it asserted for at

　　least 230ms after VCC has risen above the reset

　　threshold. Reset thresholds suitable for operation with

　　a variety of supply voltages are available.

　　The G693L has an open-drain output stage, while the

　　G692 have push-pull outputs. The G693L’s open-drain

　　RESET output requires a pull-up resistor that can be

　　connected to a voltage higher than VCC.

　　The G692L have an active-low RESET output, while

　　the G692H 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 G692/G693 ideal for use

　　in portable equipment. The G692/G693 are available in

　　a SOT-143, SC-70-5(SOT-353), SOT-23-5 packages.