Why a MEMS oscillator for 66.6666 MHz?
At 66.6666 MHz, this is a common reference clock for 10/100/1000 Ethernet PHYs, PCIe Gen1/2 root complexes, and FPGA transceiver banks — the CMOS output drives a single-ended clock tree directly.
Supply voltage and standby — sizing the power rail
Temperature grade and deployment fit
The oscillator sits in outdoor telecom cabinets, factory-floor PLCs, or engine-bay control modules without supplemental heating.
Package and footprint — board-level fit
6-SMD no-lead package, 5.00 mm x 3.20 mm body, 0.90 mm seated height — the 5.0 x 3.2 mm footprint matches industry-standard XO land patterns, so it drops onto a board laid out for a quartz oscillator without a pad change.
No stock-holding claim — availability confirmed at RFQ time.