MEMS resonator, ±10 ppm total stability over temperature
The DSC8121CL5T: The ±10 ppm total frequency stability includes temperature, supply, and aging effects — a tighter window than the ±25 ppm or ±50 ppm common in basic quartz oscillators, so the timing budget in a 100 MHz+ data path stays within margin without a separate TCXO.
Blank-programmable, 6-SMD No Lead footprint
This part is a blank (user-programmable) device — the factory ships unprogrammed, and the target frequency is written via Microchip's TimeFlash or a compatible programmer before assembly.
Active production, sourced per RFQ
The blank-programmable nature means the distributor or a programming house can load the target frequency before shipment, reducing the number of line items on the BOM.