Product Description

The CM3403 is a micropower low voltage supply supervisor designed to provide the necessary power-on reset control for microprocessors and memory applications. An internal pull-down resistor on the RESET output ensures the output remains valid under all supply conditions.

Features

• Precision voltage sensor

• Two threshold options: 2.93V or 4.63V

• Stable over temperature

• Valid output logic while VCC = 0V.

• Power-on reset pulse width of 140ms (min.) to 460ms (max.)

• Low quiescent current (40µA typ.)

• No external components required

• 3-pin SOT23 package

• 809 compatible pinout

• Lead-free versions available

Applications

• Critical µP and µC power monitoring

• PCI applications

• Memory integrity during brownouts