The Cypress CY14X101PA combines a 1-Mbit nvSRAM with a full-featured RTC in a monolithic integrated circuit with serial SPI interface. The memory is organized as 128K words of 8 bits each. The embedded nonvolatile elements incorporate the QuantumTrap technology, creating the world’s most reliable nonvolatile memory. The SRAM provides infinite read and write cycles, while the QuantumTrap cells provide highly reliable nonvolatile storage of data. Data transfers from SRAM to the nonvolatile elements (STORE operation) takes place automatically at power-down. On power-up, data is restored to the SRAM from the nonvolatile memory (RECALL operation). You can also initiate the STORE and RECALL operations through SPI instruction.
Cypress nvSRAMs are ideal for all applications that require fast access, high reliability, and unlimited endurance. These applications include write journaling in RAID storage systems, smart meters, programmable logic controllers (PLCs), gaming, and multifunction printers (MFPs).