Active MEMS oscillator — no quartz allocation risk
The DSC8121AI5T: It ships as a blank device (User Must Program) — the output frequency is set by the buyer using Microchip's TimeFlash programmer or a factory-programmed service. The available frequency range spans 10 MHz to 100 MHz, covering most MCU, FPGA, and serial-interface clock requirements.
The CMOS output swings rail-to-rail, compatible with most digital inputs without level translation. Tape & Reel packaging supports automated assembly.