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CY14C256Q CY14B256Q CY14E256Q
256-Kbit (32 K × 8) SPI nvSRAM
Not Recommended for New Designs
256-Kbit (32 K × 8) SPI nvSRAM
Features
■ 256-Kbit nonvolatile static random access memory (nvSRAM) internally organized as 32 K × 8 ❐ STORE to QuantumTrap nonvolatile elements initiated automatically on power-down (AutoStore) or by using SPI instruction (Software STORE) or HSB pin (Hardware STORE)
❐ RECALL to SRAM initiated on power-up (Power-Up RECALL) or by SPI instruction (Software RECALL)
❐ Support automatic STORE on power-down with a small capacitor (except for CY14X256Q1A)
■ High reliability
❐ Infinite read, write, and RECALL cycles ❐ 1million STORE cycles to QuantumTrap ❐ Data retention: 20 years at 85 C
■ 40 MHz and 104 MHz High speed serial peripheral interface (SPI) ❐ 40 MHz clock r
CY14C256Q Datasheet
