Hello! It has been a little while, but #nakeddiefriday is back in town.
Today's exhibit is an old PIC1650A. Yes, one of *the* PIC series of microcontrollers. Note it was designed by General Instrument in 1980. It was fabbed in a single metal layer, metal-gate NMOS process. The image is about 4.3x3.8 mm.
No full-res link as SP is still borked.