40 MHz fixed-frequency XO for 1.8V clock trees
The DSC1018CE2-040.0000T is a 40 MHz MEMS-based oscillator from Microchip's DSC1018 series, delivering a CMOS output from a 1.8V supply rail. The ±25 ppm frequency stability keeps the clock edge jitter within budget for most MCU and FPGA reference inputs without external trimming. It draws 4 mA typical during operation and drops to 1 µA in standby (power-down) mode, so a battery-powered design can gate the oscillator off between active periods without a separate enable switch.
MEMS resonator, 4-SMD no-lead package
The base resonator is MEMS rather than quartz — this gives faster start-up and better shock/vibration tolerance than a traditional crystal oscillator. The 4-SMD no-lead package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm, fitting tight layout footprints.
Active production, quoted to order
Microchip lists the DSC1018CE2-040.0000T as Active.