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