Order today, ships today. CD74HC42M – Decoder 1 x 4:10 16-SOIC from Texas Instruments. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

<p>Answer: less than 500ps Tpd, sometimes. I built a gated <a href="https://en.wikipedia.org/wiki/Ring_oscillator">ring oscillator</a> with some single-gate 74AUC packages just to see how fast it would run. The 74AUC family seems to offer the fastest CMOS gates you can buy at at moment, guaranteeing a 1.6 ns max propagation delay at 2.5V. It looks like they can be significantly faster in practice, especially if you crank up the voltage a little :-)
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<p>The circuit is very straightforward. A 74AUC14 Schmitt-trigger inverter buffers the incoming gate signal. The output of this buffer gates the oscillator through a 74AUC00 NAND date and also drives a 74AUC04 for an output driver. The ring oscillator itself consists of two additional 74AUC04 inverters plus the NAND gate. Finally, one more 74AUC04 inverter is used as a driver to buffer the output. 453-ohm resistors are used at the outputs…

На Crowd Supply объявлен сбор средств на новую разработку в области iot и SDR с незамысловатым названием iotSDR Плата будет построена на базе одного чипа Xilinx Zynq 7010 или 7020 и двух трансиверов от Microchip По планам компании iotSDR будет доступ...