MEMS resonator replaces quartz at 1.5 MHz
The DSC1033AI1-001.5000T is a MEMS-based XO that outputs a fixed 1.5 MHz CMOS clock from a 3.3V rail, with ±50 ppm frequency stability across -40 to 85°C.
Standby power-down cuts draw to 1 µA
A logic-low on the standby pin (function: Standby (Power Down)) drops the supply current from 3 mA typ to 1 µA max. For a battery-backed RTC or a sensor node that sleeps 99% of the time, this saves the energy a quartz oscillator would burn through its sustaining amplifier — the 3 mA active draw is already low enough for a coin-cell design, and the 1 µA sleep current extends shelf life without a load switch.
No pin-compatible successor has been announced, so this order code is the current production choice for the 1.5 MHz, ±50 ppm, 3.3V CMOS slot.
