DS1312S+T&R

Controllers Overview

The DS1312S+T&R is a nonvolatile memory controller in a 16-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 operates within an industrial temperature range of -40°C to +85°C, with a maximum supply voltage of 5.5V and a minimum of 4.75V. Operating current is specified at 50µA (CMOS inputs) or 200µA (TTL inputs).

Controllers Feature Summary

• Converts standard CMOS SRAM into nonvolatile memory through automatic power management.
• Monitors lithium battery voltage to provide advanced warning of impending end-of-life.
• Unconditionally write-protects attached SRAM when the main power supply is out of tolerance.

Controllers Applications

• Battery backup systems for volatile memory modules
• Processor-based systems requiring power-fail detection
• Industrial equipment requiring data retention during power interruptions

Controllers Procurement Notes

Verify that the specific ordering suffix matches the required package type and RoHS compliance status. Confirm the manufacturer's lead time and availability constraints prior to placing orders, as distribution channels may vary. Ensure the component meets all environmental specifications for the intended operating environment.

Controllers Selection Notes

Select this component when a dedicated nonvolatile RAM solution is required without external complex circuitry. The 16-pin SOIC variant provides additional reset functionality compared to smaller packages. Verify that the system's SRAM requirements align with the controller's output drive capabilities and voltage thresholds.

Controllers Part Context

This part belongs to the DS1312 family of nonvolatile controllers manufactured by Analog Devices / Maxim Integrated. The 'S' designation indicates the 16-pin SOIC package variant, which includes a Reset output pin not present in the 8-pin versions. The '+T&R' suffix denotes a lead-free/RoHS-compliant unit supplied in a tape and reel format.

Controllers Replacement Considerations

DS1312S+