DS1210S/T&R

Overview

The DS1210S/T&R is a nonvolatile controller chip designed to convert standard CMOS RAMs into nonvolatile memories. It operates within a supply voltage range of 4.75V to 5.5V and consumes less than 100nA of battery current. The device features an optional power-fail detection threshold of either 5% or 10%, depending on the connection of the TOL pin. It supports redundant batteries for enhanced reliability and provides automatic switching to battery backup during power failures.

Feature Summary

• Converts CMOS RAMs into Nonvolatile Memories
• Unconditionally Write Protects when VCC is Out-of-Tolerance
• Automatically Switches to Battery when Power-Fail Occurs
• Tests Battery Condition on Power up

Applications

• Microprocessor-based systems requiring data retention
• Battery-backed memory applications
• Systems requiring write protection during power failure

Procurement Notes

Verify the specific package type (SOIC-16) and temperature range against project requirements. Confirm RoHS compliance status as indicated by the '+' suffix in the part number. Ensure compatibility with the intended CMOS RAM interface and battery configuration before procurement.

Selection Notes

Select this component when converting CMOS SRAM to NVSRAM functionality is required. Consider the 16-pin SO package for space-constrained designs. Evaluate the need for redundant battery support if high data integrity is critical. Verify operating temperature range suitability for the application environment.

Part Context

The DS1210 series includes variants such as the DS1210SN+ and DS1210S+. These devices are manufactured by Analog Devices Inc./Maxim Integrated. They belong to the category of memory controllers, specifically nonvolatile RAM controllers. The 'T&R' suffix indicates tape and reel packaging.

Replacement Considerations

DS1210SN+