alt Hacker NewsThe TI-84+ graphing calculator is still popular and a current model and it is Z80 based. (Though I doubt you'll find a DIP40 socket in one for a swap.)
The TI-84+ graphing calculator is still popular and a current model and it is Z80 based. (Though I doubt you'll find a DIP40 socket in one for a swap.)
The TI-84+ uses a TI REF 84PLUSB (or variant) ASIC that has a Z80-compatible core in it, not a Zilog Z80, and, as you say, definitely not a DIP40 part.
See the ASIC here, in what looks to me like a QFP-144 package: https://guide-images.cdn.ifixit.com/igi/e25cVO2avPxiMoXl.hug...
The CE also uses an ASIC, but with an eZ80 core instead.