Found it! 8255 PIA chip

[ronsplooter]

Anyone know the best place to pick up an 8255 PIA IC? I can see Cricklewood have them at £15 each.....is that how much they cost? I could do with grabbing a 74LS00 as well

 

[AlanJ]

 

[Paul]

2/10PCS P8255A-5 P8255 8255A 8255A-5 DIP-40 PROGRAMMABLE PERIPHEAL INTERFACE IC | eBay

Competive price. Good quality. Specialized in electronic components and moudels.

www.ebay.co.uk

Two for a Fiver from China.... if its not needed tomorrow..