At Motorola, in MCU, they (we?) were still doing some manual layout (not much, but still...) on 8-bit and 16-bit core products as late as 1989. Of course, none

At Motorola, in MCU, they (we?) were still doing some manual layout (not much, but still...) on 8-bit and 16-bit core products as late as 1989. Of course, none of the more advanced CPUs or soon-to-come DSPs did. IF I recall correctly (and I probably don't), depending on the fab, for those parts, we were at or around 1micron at the time. It was an MCU, which many might call a SoC these days, but with all the timers and serial i/o and the A/D and D/A converters and PWMs - the 8-bit family (HC11) was probably around 50K transistors in an 80-pin QFP. The HC11 had a 6809(enhanced) core. I think the 6809 was ~9K transistors, but I seem to recall that ours was a bit bigger than that. Still ~3/4 of the die was "not-CPU".