STK14C88-3NF45I

The STK14C88-3NF45I is a 256 Kbit (32K × 8) non-volatile static RAM (nvSRAM) with integrated AutoStore functionality, manufactured by Infineon Technologies. This device combines the fast 45 ns read/write access time of a standard SRAM with the data retention security of EEPROM, automatically transferring all SRAM contents to non-volatile storage on every power-down cycle without requiring an external battery or supervisor circuit. Housed in a 32-lead SOIC (SOP) surface-mount package, the part is fully configured as a byte-wide memory and operates across the industrial temperature range (-40°C to +85°C), matching the “I” suffix designation. The QuantumTrap cell architecture ensures immediate data recall upon power restoration, eliminating the write endurance and charge-pump delays found in some alternative non-volatile technologies.

Typical applications for this nvSRAM span industrial automation, aerospace flight and mission-data recorders, defense computing platforms, medical instrumentation, and high-reliability embedded systems that cannot tolerate loss of configuration or operational parameters during unexpected shutdowns. It frequently serves as a direct drop-in replacement for battery-backed SRAM in programmable logic controllers, RAID controllers, data loggers, and tactical communications equipment where maintenance-free operation is critical. From a procurement standpoint, the STK14C88-3NF45I is an industrial-grade active product, but the nvSRAM category is a specialized technology segment with fewer alternative sources, making lifecycle planning and authorised distribution sourcing essential to avoid counterfeit or relabeled parts. Design engineers should confirm moisture sensitivity level (MSL) handling and anticipate possible extended lead times, while buyers operating in defense or aerospace supply chains should verify traceability and temperature-grade requirements when integrating this device into long-life programs.