The DSC1033DI1-007.3728T is a MEMS-based XO (Standard) from Microchip's PureSilicon™ series, delivering a fixed 7.3728 MHz CMOS output from a 3.3V rail. The MEMS resonator replaces a quartz crystal, eliminating crystal startup time and reducing board area — the 4-SMD no-lead package measures just 2.50 mm x 2.00 mm with a seated height of 0.90 mm.
Industrial temperature grade and frequency stability
That stability spec covers initial tolerance, temperature drift, and aging — the MEMS resonator's low aging rate means the output stays within ±50 ppm over years of field operation in outdoor telecom or factory-floor environments.
Microchip lists the DSC1033DI1-007.3728T as Obsolete. No official successor is recorded from the original manufacturer.