She sourced a crystal oscillator which runs at 1 MHz ... A toggle switch allows her to choose the crystal, or a 555 timer circuit which uses a push button to fire each clock pulse.

Time crystals represent a new phase of matter proposed by Frank Wilczek, the Nobel laureate of Physics in 2004; they can ...

055UMC_OSC_01 is a crystal oscillator with Pierce architecture. The block implementation is optimized for very low power consumption. The block consists of a feedback amplifier and buffers for ...