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ASM690A - uP Power Supply Supervisor

Description

offers complete single chip solutions for power supply monitoring and control battery functions in microprocessor systems.

backup switching and power failure

Features

  • of these four functions are:.
  • 1.6 second watchdog timer to keep microprocessor responsive.
  • 4.40 V or 4.65 V VCC threshold for microprocessor reset at power.
  • up and power.
  • down.
  • SPDT (Single.
  • pole, Double.
  • throw) PMOS switch connects backup power to RAM if VCC fails.
  • 1.25 V threshold detector for power loss or general purpose voltage monitoring These features are pin.
  • compatible with the industry standard power.
  • supply.

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Datasheet preview – ASM690A

Datasheet Details

Part number ASM690A
Manufacturer ON Semiconductor
File Size 199.47 KB
Description uP Power Supply Supervisor
Datasheet download datasheet ASM690A Datasheet
Additional preview pages of the ASM690A datasheet.

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Full PDF Text Transcription

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ASM690A/692A, ASM802L/802M, ASM805L mP Power Supply Supervisor with Battery Backup Switch Description The ASM690A / ASM692A / ASM802L / ASM802M / ASM805L offers complete single chip solutions for power supply monitoring and control battery functions in microprocessor systems. Each device implements four functions: Reset control, watchdog monitoring, battery−backup switching and power failure monitoring. In addition to microprocessor reset under power−up and power−down conditions, these devices provide battery−backup switching to maintain control in power loss and brown−out situations. Additional monitoring capabilities can provide an early warning of unregulated power supply loss before the voltage regulator drops out. The important features of these four functions are: • 1.
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