SUMMARY DESCRIPTION

The M28W320B is a 32 Mbit (2 Mbit x 16) non-volatile Flash memory that can be erased electrically at the block level and programmed in-system on a Word-by-Word basis. These operations can be performed using a single low voltage (2.7 to 3.6V) supply. VDDQ allows to drive the I/O pin down to 1.65V. 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: 70, 85, 90,100ns

■ PROGRAMMING TIME

– 10µs typical

– Double Word Programming Option

■ COMMON FLASH INTERFACE

– 64 bit Security Code

■ MEMORY BLOCKS

– Parameter Blocks (Top or Bottom location)

– Main Blocks

■ BLOCK PROTECTION on TWO PARAMETER BLOCKS

– WP for Block Protection

■ AUTOMATIC STAND-BY MODE

■ PROGRAM and ERASE SUSPEND

■ 100,000 PROGRAM/ERASE CYCLES per BLOCK

■ ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Top Device Code, M28W320BT: 88BCh

– Bottom Device Code, M28W320BB: 88BDh