All should operate almost identically.
* NEC D765AC [[Ziloghttps://www.cpcwiki.eu/imgs/3/3c/CPC664_Z70205_MC0005B_PCB_Top.jpg Source]] Z0765A08PSC* [[NEC D765AC-2[https://www.cpcwiki.eu/imgs/4/45/CPC6128_PCB_Top_%28Z70210_MC0009A%29.jpg Source]* UMC UM8272A [[Media:Amstrad cpc 6128 azerty (f) placa2.jpg|Source]]* NEC D765ACZilog Z765APS [https://www.cpcwiki.eu/imgs/f/fb/CPC6128_Z70290_MC0020C_PCB_Top.jpg Source]* UMC UM8272A[[Zilog]] Z0765A08PSC [https://www.cpcwiki.eu/imgs/6/67/CPC6128_PCB_Top_%28Z70290_MC0020F%29.jpg Source]
The following data seperators are used: