CY14C256Q CY14B256Q CY14E256Q 256-Kbit (32 K × 8).
CY14B256Q - 256-Kbit (32 K x 8) SPI nvSRAM
CY14B256Q3 - 256-Kbit (32 K X 8) Serial (SPI) nvSRAM
CY14B256Q2 - 256-Kbit (32 K X 8) Serial (SPI) nvSRAM
CY14B256Q1 - 256-Kbit (32 K X 8) Serial (SPI) nvSRAM