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M28W640CT

M28W640CB

64 Mbit (4Mb x16, Boot Block)

3V Supply Flash Memory

PRELIMINARY DATA

FEATURES SUMMARY

s

SUPPLY VOLTAGE

鈥?V

DD

= 2.7V to 3.6V Core Power Supply

鈥?V

DDQ

= 1.65V to 3.3V for Input/Output

鈥?V

PP

= 12V for fast Program (optional)

s

Figure 1. Packages

FBGA

ACCESS TIME

鈥?3.0V to 3.6V: 80ns

鈥?2.7V to 3.6V: 90ns

TFBGA48 (ZB)

8 x 6 ball array

s

PROGRAMMING TIME:

鈥?10碌s typical

鈥?Double Word Programming Option

鈥?Quadruple Word Programming Option

s

s

COMMON FLASH INTERFACE

MEMORY BLOCKS

鈥?Parameter Blocks (Top or Bottom location)

鈥?Main Blocks

TSOP48 (N)

12 x 20mm

s

BLOCK LOCKING

鈥?All blocks locked at Power Up

鈥?Any combination of blocks can be locked

鈥?WP for Block Lock-Down

s

SECURITY

鈥?128 bit user Programmable OTP cells

鈥?64 bit unique device identifier

鈥?One Parameter Block Permanently Lockable

s

s

s

AUTOMATIC STAND-BY MODE

PROGRAM and ERASE SUSPEND

100,000 PROGRAM/ERASE CYCLES per

BLOCK

ELECTRONIC SIGNATURE

鈥?Manufacturer Code: 20h

鈥?Top Device Code, M28W640CT: 8848h

鈥?Bottom Device Code, M28W640CB: 8849h

s

November 2001

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

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