SA56600-42 Datasheet | Philips Semiconductors

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 GENERAL DESCRIPTION The SA56600-42 is designed to protect SRAM data in puter 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...