I wrote about the Z85C30:
It is still made by Zilog, and still stocked by
Digikey.
Phill Harvey-Smith wrote:
Humm, all hits searching for it on digikey.co.uk list
it as non-stock,
the minimum order number of any of the parts listed is 175 chips,
so dunno how practical using that is going to be.
I use
digikey.com, not digikey.co.uk, and see eight variants in stock
(three DIP, five PLCC), all with a minimum quantity of one. The 8 MHz
DIP version is USD 8.79 for quantity one, and there are 700 in stock.
The also have the Z85230, which is an enhanced part. In small
quantities, it is about twice as expensive as the Z85C30.
Eric