Timing-tree fit for a 14.7456 MHz rail
The DSC6011MI2B-014.7456T: 14.7456 MHz is a common multiple of standard UART baud rates (115200, 230400, etc.) and also divides cleanly into USB full-speed bit clocks — a single oscillator serves both the serial interface and the MCU core timing on many mixed-signal boards.
Power budget for always-on and sleep modes
Active current draw is 1.3 mA typical at 14.7456 MHz; when the standby (power-down) function is asserted, the disable current drops to 1.5 µA typical — the oscillator consumes less than the leakage of a typical battery-backed RTC in sleep. The standby pin lets a system-level power controller gate the clock without an external load switch — the oscillator's own output goes high-impedance, so the downstream logic sees a clean stop rather than a runt pulse.