[Diy_efi] Electrically erasable proms

[Joe Boucher]

In the Transtonics web site, they claim there are electrically erasable prom
chips which are direct replacements for the 27C256 and 27C512 uv erasable
eeproms.  http://xtronics.com/memory/efi_ecu_faq.htm

Yet, when I pull down the fact sheets for the Atmel 29C512 fact sheet, there
are no chips made in the dip format which will fit the GM memcal.

Am I missing something?

Thanks,

Joe B.