CG7501AA

CG7501AA 4-Mbit (512 K × 8) nvSRAM 4-Mbit (512 K × 8/256 K × 16) nvSRAM Features ■ 45 ns access time ■ Internally organized as 512 K × 8 ■ Hands off automatic STORE on power-down with only a small capacitor ■ STORE to QuantumTrap non-volatile elements initiated by software, device pin, or AutoStore on power-down ■ RECALL to SRAM initiated by software or power-up ■ Infinite read, write, and recall cycles ■ 1 million STORE cycles to QuantumTrap ■ 20 year data retention ■ Single 3 V +20, –10 operation ■ Industrial temperature ■ Package ❐ 48-ball fine-pitch ball grid array (FBGA) ■ Pb-free and restriction of hazardous substances (RoHS) compliant Functional Description The Cypress CG7501AA is a fast static RAM (SRAM), with a non-volatile element in each memory cell. The memory is organized as 512 K bytes of 8 bits each. The embedded non-volatile elements incorporate QuantumTrap technology, producing the world’s most reliable non-volatile memory. The SRAM provides infinite read and write cycles, while independent non-volatile data resides in the highly reliable QuantumTrap cell. Data transfers from the SRAM to the non-volatile elements (the STORE operation) takes place automatically at power-down. On power-up, data is restored to the SRAM (the RECALL operation) from the non-volatile memory. Both the STORE and RECALL operations are also available under software control. Logic Block Diagram A0 A1 A2 A3 A4 A5 A6 A7 A8 A 17 A 18 DQ 0 DQ 1 DQ 2 DQ 3 DQ 4 DQ 5 DQ 6 DQ 7 INPUT BUFF...