A number of different version of the SP0256 exist. The most common is the SP0256-AL2, where -AL2 means that the built-in ROM contains preprogrammed english allophones.
== Technical ==
* [[SP0256 Voice Generator]]
* [[SP0256 Instruction Set]]
* [[SP0256 Allophones]]
* [[SP0256 Pin-Outs]]
== CPC Speech Synthesizers ==