[ILUG] Still at the BIOS

[Mel]

Right, I've managed to pin down enough information on the chip now I
think. The manufacturer is SST (Silicon Storage Technology) and the full
part number is

39SF020 90-4C-PH 991391-A

 From their info catalog the information on that chip is as follows

Competitor part number: AT27C020-90-PC
Vendor: Atmel
Memory Org: 256K x 8
VPP/VCC Range: 5V only
Speed: 90ns
Description: OTP
Package: PDIP
SST Part: SSt27SF020-904C-PH
Comments: 100% drop-in replacement, Program/Erase required external
	programmer with support for SST

Does anyone know what an equivilant part would be? Sorry for all this but
I now nothing about electronics and No Computer => No Linux