STK17T88-RF25

Overview

The STK17T88-RF25 is a non-volatile static random-access memory (nvSRAM) integrated circuit manufactured by Simtek. It combines a 32K x 8 bit SRAM array with an integrated real-time clock (RTC). The device utilizes AutoStore technology to automatically transfer data from the volatile SRAM to non-volatile memory upon detection of power loss, ensuring data integrity without software intervention. It operates within a standard asynchronous interface and is available in various package configurations.

Feature Summary

• Integrates 32K x 8 bit SRAM with non-volatile storage capability
• Includes built-in real-time clock functionality for timekeeping
• Features automatic data backup via AutoStore technology during power failure

Applications

• Data logging systems requiring persistent timestamped records
• Industrial control units needing reliable state retention
• Embedded systems with critical configuration data preservation

Procurement Notes

Verify the specific suffix code against official Simtek documentation to confirm pinout compatibility and package type. Ensure the selected variant matches the required operating temperature range and voltage specifications for the target application environment before procurement.

Selection Notes

Select this component when both high-speed volatile access and non-volatile data retention are required in a single package. The integrated RTC eliminates the need for separate timing components. Confirm that the AutoStore trigger threshold aligns with the system's power supply characteristics to ensure reliable data backup.

Part Context

This part belongs to the Simtek STK17 series of nvSRAM devices. These components bridge the gap between fast volatile RAM and slower non-volatile flash or EEPROM technologies. The series is designed for applications demanding rapid data acquisition with guaranteed persistence.

Replacement Considerations

Cross-reference with Cypress Semiconductor equivalents such as the CY14B256K series, which offers similar nvSRAM and RTC integration. Verify functional compatibility regarding register maps and timing parameters before substitution.