512-Kbit (64 K × 8) Serial (SPI) nvSRAM 512-Kbit .
Cypress Semiconductor
CY14B512Q1 - 512-Kbit (64 K X 8) Serial (SPI) nvSRAM
512-Kbit (64 K × 8) Serial (SPI) nvSRAM 512-Kbit (64 K × 8) Serial (SPI) nvSRAM Features ■ ■ 512-Kbit nonvolatile static random access memory (nvSR.