M29W/DW Flash Memory

The M29W/M29DW family meets the most demanding needs of design engineers looking for densities from 4 to 128 Mb, with the added advantages of ease-of-use and reliability. The family’s memories are divided into blocks that can be erased independently to allow valid data to be preserved while old data is erased. The entire M29 family offers higher flexibility in code storage via both asymmetrical and symmetrical block architecture. In the first case, the memory array includes a Boot Block (at the top or bottom of the address space to suit different microprocessors), a parameter and main blocks. In the symmetrical architecture the blocks have the same size. Each block can sustain over 100,000 program/erase cycles with 20 years data retention. The M29 product family offers a wide range of package options including TSOP and FBGA.

The M29W NOR family offers a wide range of automotive grade (AEC-Q100 compliant) devices. And, the M29DW family features flexible partition Read-While-Write/Erase (RWW/E) operation, which allows data to be read from one bank, or group of banks, while the other is written or erased.