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SA56600-42 - System reset for lithium battery backup

Datasheet Summary

Description

The SA56600-42 is designed to protect SRAM data in computer systems during periods of sagging power supply voltages and power outages.

When the power supply voltage drops to typically 4.2 V, the CS output goes to a logic LOW state pulling CE to a LOW state, disabling the SRAM device.

Features

  • Supply switching at 4.2 VDC threshold (falling supply).
  • RESET output.
  • Both CS and CS outputs available for SRAM control.
  • During battery back-up operation:.
  • Low supply current (0.3 µA typical).
  • Low input/output voltage drop (0.3 V typical at 100 µA).
  • Low reverse current leakage (0.1 µA max. ) During normal operation:.
  • Low input/output voltage drop (0.2 V typical at 50 mA).
  • 4.8 V typical output voltage at 50 mA with.

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Datasheet Details

Part number SA56600-42
Manufacturer Philips
File Size 135.10 KB
Description System reset for lithium battery backup
Datasheet download datasheet SA56600-42 Datasheet
Additional preview pages of the SA56600-42 datasheet.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS SA56600-42 System reset for lithium battery backup Product data Supersedes data of 2001 Apr 24 File under Integrated Circuits, Standard Analog 2001 Jun 19 Philips Semiconductors Philips Semiconductors Product data System reset for lithium battery back-up SA56600-42 GENERAL DESCRIPTION The SA56600-42 is designed to protect SRAM data in computer systems during periods of sagging power supply voltages and power outages. When the power supply voltage drops to typically 4.2 V, the CS output goes to a logic LOW state pulling CE to a LOW state, disabling the SRAM device. In addition, a reset logic LOW is asserted for system use. If the supply voltage drops further, to 3.
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