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You need to understand a logic circuit on a PCB but someone has scratched the laser marking off so that others can't copy the device. Fortunately, since you read this site this is no longer an issue for you.

This module asks the reader to determine some basic chip characteristics by looking at an overview of a chip. As the quiz goes on the reader should learn more about the chip and understand more about what it does.

quiz:metal_gate_cmos_pinout_data&learning

quiz:metal_gate_cmos_io_data&learning