25 MHz + 50 MHz from one MEMS die
The DSC6121CI2A-00AGT: The key differentiator of this part is the dual-frequency output: 25 MHz and 50 MHz, both CMOS, both within the same 4-VDFN footprint. A typical single-output MEMS oscillator in the same package would require two separate devices to cover both frequencies.
Sourcing an obsolete MEMS XO
Microchip has classified the DSC6121CI2A-00AGT as obsolete. Each lot is verified for authenticity and traceability before shipment. Availability and lead time are quoted per RFQ. If a new design requires a dual-output MEMS oscillator, consider evaluating Microchip's current DSC61XX family offerings or a pin-compatible alternative from another MEMS oscillator vendor. The 4-VDFN (3.2 mm x 2.5 mm) footprint is common across many MEMS XO suppliers.