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ASM1834A Datasheet Dual 5v And 3.3v Up Power Supply Supervisor

Manufacturer: Alliance Semiconductor

Overview: .. April 2005 rev 1.3 ASM1834/A/D Dual 5V and 3.3V µP Power Supply Supervisor with Manual Reset All devices operate over the extended industrial temperature range. Devices are available in 8-pin DIP, surface mount 8-pin SO and 8-Pin MicroSO packages. Die are also available.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number ASM1834A
Manufacturer Alliance Semiconductor
File Size 272.31 KB
Description Dual 5V and 3.3V uP Power Supply Supervisor
Datasheet ASM1834A ASM1834 Datasheet (PDF)

General Description

The ASM1834 supervisors simultaneously monitor both 3.3V and 5V power sources and generate reset signals when either supply is out of tolerance.

When an out-of-tolerance condition is detected, the output-reset signal of the affected supply bees active and resets the system microprocessor/ microcontroller.

On power-up and after the supply voltage returns to an in-tolerance condition, the reset signal remains active for approximately 350ms.

Key Features

  • Monitors 5V and 3.3V supplies simultaneously 5V and 3.3V power-on reset 350ms reset time Debounced pushbutton reset input Push-pull CMOS output.
  • ASM1834, ASM1834D.
  • Eliminates external pull-up resistors.
  • Active LOW (ASM1834), HIGH (ASM1834D).
  • Open Drain Output.
  • ASM1834A.
  • Active LOW.
  • Selectable 5V and 3.3V trip point tolerance Internal power drawn.

ASM1834A Distributor