Hi Folks!
i have several 2A3B PCB laying around and im asking myself if i can just put a 16Mbit TSOP in Maskrom1(U1) and leave Maskrom2(U2) empty?
For example: Parallel World? (LoRom 64k)
Will this work and is there any wiring needed on the 74LS?
Rgds Dario
29F016 on 2A3B (2 Maskrom) Donor
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1. NO BLATANT PIRACY. This includes reproducing homebrew less than 10 years old, with the exception of free software.
2. No advertising your reproductions, with the exception of free software.
3. Be nice. See RFC 1855 if you aren't sure what this means.
Re: 29F016 on 2A3B (2 Maskrom) Donor
You have to rewire the 74LS139 since 2A3B only has 32 pin MaskROMs.
You'd need to make up for A20/A21 decoding when using a TSOP Adapter with 36 pins.
You'd need to make up for A20/A21 decoding when using a TSOP Adapter with 36 pins.
Re: 29F016 on 2A3B (2 Maskrom) Donor
You are right,thanks - so i could use 2 27801 and rewire!
Re: 29F016 on 2A3B (2 Maskrom) Donor
Yea, that would be the better method for those boards.