CY14B256P 256-Kbit (32 K × 8) Serial (SPI) nvSRA.
Cypress Semiconductor
CY14B256P - 256-Kbit (32 K X 8) Serial (SPI)
CY14B256P 256-Kbit (32 K × 8) Serial (SPI) nvSRAM with Real Time Clock 256-Kbit (32 K × 8) Serial (SPI) nvSRAM with Real Time Clock Features ■ ■ ■.