SA56600-42 - System reset for lithium battery backup
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
SA56600-42 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
