DS1312S-2+

Overview

The DS1312S-2+ is a nonvolatile RAM controller in an 8-pin SOIC package. It operates within a supply voltage range of 4.75V to 5.5V and supports a battery supply voltage up to 6.0V. The device functions across an industrial temperature range of -40°C to +85°C. It includes a reset output pin for processor systems.

Feature Summary

• Converts CMOS SRAM into nonvolatile memory by monitoring power conditions
• Automatically switches to battery backup when main power fails
• Monitors lithium cell voltage and signals low-battery warnings
• Provides optional power-fail detection thresholds

Applications

• Battery backup for SRAM modules
• Lithium battery capacity monitoring
• Processor-based system power failure warning

Procurement Notes

Verify the specific suffix 'S-2' confirms the inclusion of the Reset (RST) output pin, as standard variants lack this feature. Confirm RoHS compliance status via official documentation. Ensure the selected package matches the required PCB footprint for the 8-SOIC form factor.

Selection Notes

Select this component when SRAM data retention during power loss is critical. The S-2 variant is suitable for designs requiring a dedicated reset signal. Verify that the system's lithium battery voltage falls within the supported operating range for accurate monitoring.

Part Context

This part belongs to the DS1312 family of nonvolatile controllers. It shares core functionality with other variants but differs in package type and pin configuration. The S-2 designation specifically indicates the 8-pin SOIC package with the added reset function.

Replacement Considerations

DS1312+