SUMMARY DESCRIPTION

The M28W320FS and M28W640FS 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 1.65V 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= 1.65V 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

■ MEMORY BLOCKS

– Parameter Blocks (Top or Bottom location)

– Main 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:

M28W320FST: 880Ah,

M28W320FSB: 880Bh

M28W640FST: 8858h,

M28W640FSB: 8859h

■ ECOPACK? PACKAGE AVAILABLE