The Z80 comes in a 40 pin DIP package. It has been manufactured in A, B, and C models, differing only in maximum clock speed. It also has been manufactured as a stand-alone microcontroller with various configurations of on-chip RAM and EPROM.
== Part numbers used in the Amstrad CPC during it's its lifetime ==
The Z80 CPU has been manufactured by others, and various Z80s have been used in the construction of the CPC during it's its lifetime.
* SGS Z8400AB1