The Numonyx™ M29W/M29DW family of serial flash meets the most demanding needs of designers looking for densities in the range of 4 Mb to 128 Mb, with the added advantages of ease-of-use and reliability.

The M29W serial flash NOR family offers a wide range of automotive grade (AEC-Q100 compliant) devices.  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.

The memories are divided into blocks that can be erased independently to allow valid data to be preserved while old data is erased. M29 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.