GENERAL DESCRIPTION

This 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 functional commands.

FEATURES

? 100 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)

? LVTTL-compatible inputs and outputs

? Single +3.3V ±0.3V power supply

– Additional VHH hardware protect mode (RP#)

? Four-bank architecture supports true concurrent

operations with zero latency:

Read from any bank while performing a

PROGRAM or ERASE operation to any other

bank

? Deep power-down mode: 300μA maximum

? Cross-compatible Flash memory command set

? Industry-standard, SDRAM-compatible pinouts

– Pins 36 and 40 are no connects for SDRAM