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