1/54

PRELIMINARY DATA

November 2001

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

M28W640CT

M28W640CB

64 Mbit (4Mb x16, Boot Block)

3V Supply Flash Memory

FEATURES SUMMARY

s

SUPPLY VOLTAGE

s

ACCESS TIME

– 3.0V to 3.6V: 80ns

– 2.7V to 3.6V: 90ns

s

PROGRAMMING TIME:

– 10µs typical

– Double Word Programming Option

– Quadruple Word Programming Option

s

COMMON FLASH INTERFACE

s

MEMORY BLOCKS

– Parameter Blocks (Top or Bottom location)

– Main Blocks

s

BLOCK LOCKING

– All blocks locked at Power Up

– Any combination of blocks can be locked

–WP for Block Lock-Down

s

SECURITY

– 128 bit user Programmable OTP cells

– 64 bit unique device identifier

– One Parameter Block Permanently Lockable

s

AUTOMATIC STAND-BY MODE

s

PROGRAM and ERASE SUSPEND

s

100,000 PROGRAM/ERASE CYCLES per

BLOCK

s

ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Top Device Code, M28W640CT: 8848h

– Bottom Device Code, M28W640CB: 8849h

Figure 1. Packages

TSOP48 (N)

12 x 20mm

FBGA

TFBGA48 (ZB)

8 x 6 ball array