Replace RU7 — ZXNet «hardware.zx»

From Valery Tkachuck To All 3 January 2007

Hello Retrograde Take KM62256CL-10, M41256A-12. M5M 5256 AFP-70L is too fast, there may be a problem with regeneration.

From Alexander Stolyarov To All 3 January 2007

Hello, All Hello everyone! Tell me, please, what can replace RU7? As a replacement there is: KM62256CL-10 M5M 5256 AFP-70L M41256A-12 Which do you think is preferable from this list? And yet, I hold two processors in my hands: Zilog Z0840004PSC ST Z8400AB1 Which one is more reliable? I am inclined to install the Zilogovsky stone. Thanks in advance for your answer! P.S. Components are selected for assembly of ATM-2.

From Alexander Stolyarov To All 3 January 2007

Hello, Black_Cat Bla> Take KM62256CL-10, M41256A-12. Bla> M5M 5256 AFP-70L - too fast, there may be a problem with regeneration. I see, thanks! How will the KM62256CL-10 and M41256A-12 behave together? They love this mix won't it be bad? The fact is that I have 14 pieces of M41256A-12 in stock, Accordingly, the 2 remaining microcircuits will be KM62256CL-10. Or is it better to splurge and buy one type?

From Alexander Stolyarov To All 4 January 2007

Hello Retrograde Today they found me a SIMM module with 3 chips on it two: GM71C4400BT80 one: BP41C1000D-6 Judging by the fact that Part Number = GM71C4400BT80 Manufacturer Name = LG Semicon Description = General Purpose Dynamic RAM - Fast Page Mode,TTL compat. I/O Number of Words = 1M Bits Per Word = 4 t(acc) Max. (S) = 80n tW Min (S) = 150n Output Config = 3-State P(D) Max.(W) Power Dissipation = 1.0 No. Supp (V) = 5.0 Package = TSOP-20/26 Pins = 26 Military = N Technology = CMOS Megabyte module. Correct me if I'm wrong.

From Ivan Shishkin To All 5 January 2007

Hello Retrograde That's right.