MEMS oscillator at 24 MHz, CMOS output, 1.8V rail
The DSC1018DC2-024.0000T is a MEMS-based XO (standard oscillator) from Microchip, delivering a 24 MHz CMOS clock from a 1.8V supply rail. Supply current maxes at 3 mA during active operation and drops to 1 µA in standby (power-down) mode. For a battery-powered sensor node that sleeps most of the time, the disable current is below the self-discharge rate of a CR2032 coin cell.
Standby function and power-down control
The part includes a standby (power-down) function — pulling the enable pin low shuts off the output and drops the current draw to 1 µA max. This is a hard stop, not a tristate: the oscillator stops, and the output goes high-impedance.
Commercial temperature grade and package
The 4-SMD no-lead package measures 2.50 mm x 2.00 mm with a seated height of 0.90 mm — a compact footprint that fits tight board layouts, but the small pads require careful solder-paste stencil design to avoid tombstoning. For a 24 MHz clock, that translates to a maximum frequency error of 600 Hz — well within the tolerance of most MCU PLLs and USB full-speed controllers.