The DSC1001DL5-018.4320T is an 18.432 MHz MEMS-based oscillator with CMOS output, built on Microchip's DSC1001 series. It delivers ±10 ppm frequency stability across the full -40 to 105 °C range — this is the AEC-Q100 Grade 1 temperature band, meaning the part holds timing through under-hood heat soak and cold-crank dips without the warm-up drift of a quartz crystal.
Supply voltage spans 1.8 V to 3.3 V, so the same order code serves a 1.8-V core rail and a 3.3-V I/O rail without a separate regulator.
Package and board-fit for 4-SMD no-lead
Housed in a 4-SMD no-lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm max. The 0.098" x 0.079" footprint is the same as standard 2.5 x 2.0 mm quartz oscillators — a layout already using that land pattern accepts this MEMS part without a board spin.
The base product number DSC1001 covers the series — this suffix denotes the specific frequency and stability grade.