[coreboot] W39V040FB and W39V040FC?

Stefan Reinauer stefan.reinauer at coreboot.org
Tue Oct 18 01:21:23 CEST 2016


* Antonius Riko <antonius.riko at gmail.com> [161016 07:38]:
> Everyone,
> 
> Is W39V040FB compatible with W39V040FC ?
> Cheers

That depends on your uyse case. They have different erase block sizes.

>From the data sheets:

The W39V040FC is a 4-megabit, 3.3-volt only CMOS flash memory organized
as 512K x 8 bits. For flexible erase capability, the 4Mbits of data are
divided into 16 x 8 Kbytes pages and 6 x 64 Kbytes sectors or 8 x 64
Kbytes sectors.

The W39V040FB is a 4-megabit, 3.3-volt only CMOS flash memory organized
as 512K x 8 bits. For flexible erase capability, the 4Mbits of data are
divided into 8 uniform sectors of 64 Kbytes

Stefan



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