Flash TSOPs which pinout to use

I need to update an old design that uses 32Mbit Flash chips in 48-pin TSOP (2Mx16). I expect 64Mbit to be enough for the life of the product (5-10 years), but, well, things happen...

I see that 64Mbit chips come in 48- and 56-pin TSOP (BGA is considered a big no-no for now) and that the 56-pin format goes well beyond 64Mbit. Current design calls for M29DW323DB70N6 from ST (Numonyx), which is a 70ns 3V3 NOR Flash.

Any advice greatfully received as to which format, or product, to choose.


Reply to
Peter Dickerson
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If you have enough space on the board, why not put 2 footprints ?

Regards Anton Erasmus

Reply to
Anton Erasmus

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