WTB: 256x8 20 pin BIPOLAR PROM - equivalents listed...

[Mark (UK)]

Hi all!

I'm looking to buy a quantity of 256x8 20 pin BiPolar PROMs. The
following list are all pinout equivalents (except for speed and
programming algorithm):

N82S135
MMI 6309-1
MMI 63S281
TI 18S22
TI 28L22
MB 7118
AM27S23
74S471
74LS471
uPB421

Looking for the 20 pin DIP package, NOT PLCC. Let me know what you have.
They must come with a "blank" guarantee, as they are one-time
programmable devices, so once programmed, cannot be erased.

Thanks. Yours, Mark.

 

[Dieter Wiedmann]

"Mark (UK)" schrieb:

N82S135
MMI 6309-1
MMI 63S281
TI 18S22
TI 28L22
MB 7118
AM27S23
74S471
74LS471
uPB421

Looking for the 20 pin DIP package, NOT PLCC. Let me know what you have.
They must come with a "blank" guarantee, as they are one-time
programmable devices, so once programmed, cannot be erased.

Try Strixner&Holzinger in Munich, www.sh-halbleiter.de, look for their
'Online Lagerliste'.


Regards,
Dieter