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