The DSC1101DI5-018.4320 is a MEMS-based XO (Standard) oscillator from Microchip's DSC1101 series, delivering a fixed 18.432 MHz CMOS output — a common frequency for UART baud-rate generation and microcontroller clock trees. Its 2.25V to 3.6V supply range lets it run directly off a 2.5V or 3.3V rail without an extra LDO, simplifying the power tree.
When active, the oscillator draws 35 mA max at 18.432 MHz; the standby current is under 0.1 mA, so the power savings are meaningful in duty-cycled designs.
Housed in a 6-VDFN package measuring 2.50mm x 2.00mm with a seated height of 0.90mm — a compact footprint that suits space-constrained PCBs in handheld or densely populated boards. Surface-mount assembly; the 6-pin VDFN uses a standard reflow profile. No special via-in-pad or thermal management is required for this low-power device.