DS1314S-2/T&R

Controllers Overview

The DS1314S-2/T&R is a nonvolatile memory controller in an 8-pin SOIC package. It converts CMOS SRAM into nonvolatile memory by monitoring VCCI for out-of-tolerance conditions and automatically switching to a lithium battery backup supply upon power failure. The device provides unconditionally write-protected SRAM when VCC is out of tolerance. It features a Battery Warning output signal that monitors the voltage of a lithium cell and provides advanced warning of impending battery failure.

Controllers Feature Summary

• Converts standard CMOS SRAM into nonvolatile memory with automatic power-fail detection
• Monitors lithium battery voltage and signals low-battery condition via an active-low open-drain output
• Unconditionally inhibits chip enable to protect SRAM data during power failures

Controllers Applications

• Battery backup systems for nonvolatile SRAM modules
• Lithium battery capacity monitoring and end-of-life warning circuits
• Processor-based systems requiring power-fail reset signals

Controllers Procurement Notes

Verify the specific suffix T&R/C04 against official manufacturer documentation, as datasheets may not explicitly detail all distributor-specific tape-and-reel variations. Confirm RoHS compliance status and lead-free packaging details directly from the supplier's certified material declaration or the manufacturer's ordering guide to ensure alignment with project requirements.

Controllers Selection Notes

Select this component for applications requiring a compact solution to convert volatile SRAM into nonvolatile storage. The 8-pin SOIC package offers space-saving benefits compared to larger variants. Ensure the system design accommodates the open-drain outputs for BW and RST pins by providing appropriate external pull-up resistors for proper logic level operation.

Controllers Part Context

This part belongs to the DS1314 family of nonvolatile controllers manufactured by Analog Devices Inc./Maxim Integrated. While other versions like the DS1314S+ offer 16-pin packages with additional reset functionality, the DS1314S-2 variant specifically utilizes an 8-pin configuration. It is designed for industrial temperature ranges and integrates precise voltage detection circuitry.

Controllers Replacement Considerations

DS1314S+