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SA56600-42 - System reset for lithium battery backup

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.

Key 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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Other Datasheets by Philips Semiconductors (now NXP Semiconductors)

Part Number Description
SA56606-20 CMOS system reset
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.