CY14C256Q
CY14C256Q is 256-Kbit (32 K x 8) SPI nvSRAM manufactured by Cypress.
Features
- 256-Kbit nonvolatile static random access memory (nv SRAM) internally organized as 32 K × 8
- STORE to Quantum Trap nonvolatile elements initiated automatically on power-down (Auto Store) 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 Quantum Trap
- Data retention: 20 years at 85 C
- 40 MHz and 104 MHz High speed serial peripheral interface (SPI)
- 40 MHz clock rate SPI write and read with zero cycle delay
- 104 MHz clock rate SPI write and SPI read (with special fast read instructions)
- Supports SPI mode 0 (0,0) and mode 3...
