STK12C68-WF25

Overview

The STK12C68-WF25 is a non-volatile static RAM (nvSRAM) manufactured by Simtek, featuring a density of 64 Kbit organized as 8K words by 8 bits. It utilizes Quantum Trap technology to provide SRAM-like performance with data retention capabilities. The device offers a maximum access time of 25 ns and operates on a single 5V power supply. It supports asynchronous operation and is available in various package formats including SOIC and DIP configurations.

Feature Summary

• Integrates Quantum Trap storage elements with each memory cell for non-volatility
• Provides unlimited read/write endurance typical of standard SRAM
• Automatically stores data upon power loss without external control
• Retains data for extended periods without power application

Applications

• Industrial control systems requiring persistent configuration data
• Telecommunications equipment needing reliable parameter storage
• Medical devices demanding high reliability and data integrity

Procurement Notes

Verify the specific suffix 'WF25' against official Simtek documentation to confirm exact speed grade and package type. Ensure compatibility with existing system voltage levels and interface requirements before procurement. Cross-reference part numbers with current manufacturer listings due to potential corporate acquisitions or product line changes.

Selection Notes

Select this component when SRAM speed is required alongside non-volatile data retention without the complexity of flash memory management. Consider the 25 ns access time for high-speed applications. Evaluate package options such as SOIC or DIP based on board space and mounting constraints. Confirm temperature range requirements match commercial or industrial specifications.

Part Context

Simtek was acquired by Cypress Semiconductor, which later became part of Infineon Technologies. The STK12C68 belongs to the AutoStore nvSRAM family, designed to bridge the gap between volatile SRAM and non-volatile EEPROM/Flash technologies. This lineage ensures continued support and availability through major semiconductor distributors.

Replacement Considerations

Equivalent parts include the STK12C68-25 and other variants within the STK12C68 series with matching access times. Verify pinout compatibility and electrical characteristics when substituting with similar nvSRAM devices from other manufacturers.