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GENERAL DESCRIPTION This 64Mb SyncFlash® data sheet is divided into two major sections. The SDRAM Interface Functional Description details compatibility with the SDRAM memory, and the Flash Memory Functional Description specifies the symmetrical-sectored Flash architecture and functional commands. FEATURES • 125 MHz SDRAM-compatible read timing • Fully synchronous; all signals registered on positive edge of system clock • Internal pipelined operation; column address can be changed every clock cycle • Internal banks for hiding row access • Programmable burst lengths: 1, 2 , 4, 8, or full page (read) 1, 2, 4, or 8 (write) • LVTTL-compatible inputs and outputs • 3.0V–3.6V VCC, 1.65V–1.95V VCCQ Additional VHH hardware protect mode (RP#) • Supports CAS latency of 1, 2, and 3 • Four-bank architecture supports true concurrent operation with zero latency Read any bank while programming or erasing any other bank • Deep power-down mode: 50µA (MAX) • Cross-compatible Flash memory command set • Operating temperature range of -40oC to +85oC
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