SUMMARY DESCRIPTION

The M28W320FSU and the M28W640FSU are 32 Mbit (2Mbit x 16) and 64 Mbit (4Mbit x 16) Secure Flash memories. The devices can be erased electrically at block level and programmed in-system on a Word-by-Word basis using a 2.7V to 3.6V VDD supply for the circuitry and a 2.7V to 3.6V VDDQ supply for the Input/Output pins. An optional 12V VPP power supply is provided to speed up customer programming.

FEATURES SUMMARY

■ SUPPLY VOLTAGE

– VDD = 2.7V to 3.6V Core Power Supply

– VDDQ= 2.7V to 3.6V for Input/Output

– VPP = 12V for fast Program (optional)

■ ACCESS TIME: 70ns

■ PROGRAMMING TIME:

– 10µs typical

– Double Word Programming Option

– Quadruple Word Programming Option

■ COMMON FLASH INTERFACE

■ UNIFORM BLOCKS

■ 64-KWord UNIFORM MEMORY BLOCKS

– M28W320FSU: 32 Blocks

– M28W640FSU: 64 Blocks

■ HARDWARE PROTECTION

– VPP Pin for Write protect of All Blocks

■ SECURITY FEATURES

– 128 bit User-programmable OTP segment

– 64 bit Unique Device Identifier

– KRYPTO Features:

Modify Protection,

Read Protection,

Device Authentication

■ AUTOMATIC STAND-BY MODE

■ PROGRAM and ERASE SUSPEND

■ 100,000 PROGRAM/ERASE CYCLES per BLOCK

■ ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Device Codes:

M28W320FSU: 880Ch,

M28W640FSU: 8857h

■ PACKAGE

– Compliant with Lead-Free Soldering Processes

– Lead-Free Version