Description
9 Status Register  10 Read Status Register (RDSR) Instruction  10 Fast Read Status Register (FAST_RDSR) Instruction  10 Write Status Register (WRSR) Instruction  10 Write Protection and Block Protection  11 Write Enable (WREN) Instruction  11 Write Disable (WRDI) Instruction  12 Block Protection  12 Hardware Write Protection (WP Pin)  12 Memory Access  12 Read Sequence (READ) Instruction  12 Fast Read Sequence (FAST_READ) Instruction  12 Write Sequence (WRITE) Instruction  13 RTC Access  15 REA
Features
- 64-Kbit nonvolatile static random access memory (nvSRAM) Internally organized as 8 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) Automatic STORE on power-down with a small capacitor High reliability Infinite read, write, and RECALL cycles 1 million STORE cycles to QuantumTrap Dat.