Changes
The original '''8251''' seems to be very rare (there's no programming info found in the internet). The '''8251A''' is backwards compatible, but includes some additional features. The 8251A gives some details on the additional features, so one could eventually use the '''8251A''' datasheet to reconstruct the functionality of the original '''8251'''.
However, since the 8251 is so rare, it's rather doubtworthy doubtful that the Aleste or Circit actually uses that these chips, they probably they use 8251A chips.
* The Circit advert says 8251 (which is maybe meant to be an abbreviation for 8251A).
* [[Media:8251A.pdf]] - newer 8251A datasheet (detailed info)
* [[Media:8251.pdf]] - older 8251 datasheet (pin-outs out only, without programming info)
[[Category:Electronic Component]]
