STK12C68-PF45I – CYPRESS SEMICONDUCTOR CORP

The STK12C68-PF45I is a 64-kilobit (8K x 8) non-volatile static RAM (NVSRAM) integrated circuit manufactured by Cypress Semiconductor. It features a parallel interface for data access and is housed in a 28-pin dual in-line package (DIP). This device combines high-performance SRAM technology with integrated non-volatile elements, providing data retention without external power. The ‘I’ suffix indicates an industrial temperature range of -40°C to +85°C. The device utilizes an automatic store operation upon power loss, triggered by an internal voltage monitor, to transfer SRAM data to non-volatile storage. Data is automatically recalled to the SRAM upon power-up. The access time is specified to be 45ns, making it suitable for applications requiring fast read/write cycles and reliable data backup.