Во, нашел пункты запрета:
http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=c5cc9a1c749a6f225283bdfa124431d0&rgn=div9&view=text&node=15:2.1.3.4.45.0.1.3.87&idno=15a.2. "Microprocessor microcircuits", "microcomputer microcircuits", microcontroller microcircuits, storage integrated circuits manufactured from a compound semiconductor, analog-to-digital converters, digital-to-analog converters, electro-optical or "optical integrated circuits" designed for "signal processing", field programmable logic devices, custom integrated circuits for which either the function is unknown or the control status of the equipment in which the integrated circuit will be used is unknown, Fast Fourier Transform (FFT) processors, electrical erasable programmable read-only memories (EEPROMs), flash memories or static random-access memories (SRAMs), having any of the following:
...
a.5.a. ADCs having any of the following:
a.5.a.1. A resolution of 8 bit or more, but less than 10 bit, with an output rate greater than 500 million words per second;
a.5.a.2 A resolution of 10 bit or more, but less than 12 bit, with an output rate greater than 300 million words per second;
a.5.a.3. A resolution of 12 bit with an output rate greater than 200 million words per second;
a.5.a.4. A resolution of more than 12 bit but equal to or less than 14 bit with an output rate greater than 125 million words per second; or
a.5.a.5. A resolution of more than 14 bit with an output rate greater than 20 million words per second;
