64Kbit NVSRAM with SPI — instant non-volatility for data logging
The CY14MB064Q2A-SXQ from Infineon is a 64Kbit non-volatile SRAM (NVSRAM) organized as 8K x 8, combining the fast read/write cycles of SRAM with battery-free data retention. The SPI interface runs at up to 40 MHz, allowing the processor to read or write a full 8K block in under 2 ms — useful for storing calibration constants, event logs, or configuration parameters that must survive a power cycle without a backup battery. The 8-SOIC package (0.154" body width) fits a standard small-outline footprint, keeping the PCB layout straightforward.
Industrial temperature range and compliance
ROHS3 compliance covers global RoHS requirements without exemption, simplifying regulatory acceptance for EU, UKCA, and other markets.