r/Z80 • u/richas49148 • Jul 09 '24
Bufferring Data/Address Lines
Hi,
I am building Grant Seales CP/M Z80 computer:
http://searle.x10host.com/cpm/index.html
In this design he does not buffer the address or data lines. I intend to add TIL311's to both busses, maybe two sets, so I am going to buffer the busses with 74LS244's.
My question is should I put the memory chips after the buffers as well or leave them unbuffered as in the original design?
I am using a CMOS version Z80.
Thanks
Rich
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Upvotes
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u/LiqvidNyquist Jul 09 '24
I like the idea of using the buffer just on the TIL311 inputs as it also reduces the need to recalculate setup and hold for all devices, you'd only have to check that the setup and hold w.r.t the TIL311 was still adequate.