The DSC6101JI2B-012.2880T: This frequency is common in telecom framing (/T1), Ethernet PHY reference clocks, and automotive CAN/CAN-FD controllers where the bit timing needs a precise 12.288 MHz source.
Supply voltage flexibility and low power draw
This single BOM line adapts across designs — the same oscillator can feed a 1.8 V MCU core clock and a 3.3 V PHY reference on different board spins. Typical supply current is 3 mA at 12.288 MHz. For a battery-backed always-on domain (e.g., a CAN wake-up receiver or a telematics control unit in sleep mode), this draw is low enough to avoid a separate low-power oscillator — the MEMS XO stays powered without draining the coin cell or backup capacitor.
Package, footprint, and enable/disable control
The base product number DSC6101 covers the 12.288 MHz variant; the full order code DSC6101JI2B-012.2880T includes the stability, temperature grade, and package suffix.