The Motorola 6809E[1] and the MC6883[2]. The 6809E was a 0.89MHz CPU (with external clock) used in the TRS-80 Color Computer[3] sold by Radio Shack. The MC6883

The Motorola 6809E[1] and the MC6883[2]. The 6809E was a 0.89MHz CPU (with external clock) used in the TRS-80 Color Computer[3] sold by Radio Shack. The MC6883 was the Synchronous Address Multiplexer (SAM) used to drive the display. [1] https://en.wikipedia.org/wiki/Motorola_6809 https://en.wikipedia.org/wiki/Motorola_6809 [2] https://colorcomputerarchive.com/repo/Documents/Datasheets/MC6883%20Synchronous%20Address%20Multiplexer%20Advance%20Information%20(Motorola).pdf https://colorcomputerarchive.com/repo/Documents/Datasheets/M... [3] https://en.wikipedia.org/wiki/TRS-80_Color_Computer https://en.wikipedia.org/wiki/TRS-80_Color_Computer