STK14CA8-NF35

The STK14CA8-NF35 is a 128-Kbit (16K × 8) non-volatile static random-access memory (nvSRAM) with integrated AutoStore, manufactured by Infineon Technologies. This nvSRAM combines the fast read/write performance of a standard SRAM with the data retention capability of a non-volatile memory cell, automatically transferring the entire SRAM array content into its non-volatile elements whenever power loss is detected. The device delivers a 35 ns access time and is housed in a 28-lead small-outline package (SOIC-28), operating over an industrial temperature range. Key characteristics of this product family include unlimited SRAM write endurance, true random access with no wear-out mechanisms during normal reads and writes, and an on-chip power-fail control circuit that requires no external capacitor to perform the AutoStore sequence.

Typical applications span industrial automation, defense electronics, aerospace avionics, and other high-reliability systems where critical data must be preserved instantly without battery backup. Common use cases include parameter storage in motor drives, encoder position retention, data logging in network appliances, RAID controller write-cache protection, and mission-critical state retention in embedded controllers subjected to sudden power interruptions. The STK14CA8-NF35 is an industrial-grade component rated for –40 °C to +85 °C ambient operation, making it appropriate for extended-temperature environments. Procurement engineers evaluating this part for long-lifecycle programs should consider the niche nature of nvSRAM technology; while Infineon continues to support the product line, robust supply-chain planning and attention to authorized distribution channels are advisable to manage lead-time variability and ensure continuity in defense or industrial qualification baselines.