As far as switching frequencies, see: https://electronics.stackexchange.com/questions/260477/why-dont-we-see-faster-7400-series-chips https://electronics.stack

As far as switching frequencies, see: https://electronics.stackexchange.com/questions/260477/why-dont-we-see-faster-7400-series-chips https://electronics.stackexchange.com/questions/260477/why-d...