Den Wed, 29 Jan 2020 18:28:39 +0100 skrev Gerrit Heitsch <gerrit_at_laosinh.s.bawue.de>: > On 1/29/20 6:08 PM, Francesco Messineo wrote: > > Btw, I have a PCB of some device (it has a midi interface, I can't > > tell much more about it) that happened to use > > MOS general purpose TTL clones (like the 7406 equivalent and others > > that were found on some C64 boards too). > > So in some cases, those chips were sold to other companies. > > Probably at the height of the TTL supply crisis when they had > leftover stock. It might also had been a business decision, sending out the signal that if other manufacturers set the price point too high Commodore would just produce their own chips. Btw I didn't know that they made a 7406 equivalent. Only seen the 74LS245 clone-ish 65245. Btw, are those that bad, or have they gotten a bad reputation due to other factors? The 74xx06 is one of the first things to give in if you insert the power supply cable in the serial port (which with some power supply connectors is sursprisingly easy to do) backfeeding the computer with all kinds of incorrect voltages. (I have a VIC 20 where someone must had left it in this state for an extended period as the case had started to melt under where the 74xx06 sits :O ) -- (\_/) Copy the bunny to your mails to help (O.o) him achieve world domination. (> <) Come join the dark side. /_|_\ We have cookies.Received on 2020-05-30 00:35:30
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