MEMS vs quartz — what the base resonator means for your BOM
The 6-VDFN package measures 2.50 mm × 2.00 mm with a seated height of 0.90 mm, saving board area compared to a quartz can in the same frequency range.

Microchip DSC1121 series, XO (Standard) MEMS oscillator, 72 MHz CMOS output, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 105°C, 6-VDFN package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Frequency | 72 MHz |
| Frequency stability | ±25ppm |
| Operating temperature | -40°C~105°C |
| Size (Dimension) | 0.098\" L x 0.079\" W (2.50mm x 2.00mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tape & Reel (TR) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN |
The 6-VDFN package measures 2.50 mm × 2.00 mm with a seated height of 0.90 mm, saving board area compared to a quartz can in the same frequency range.
Yes — this is a drop-in MEMS XO replacement for a standard quartz oscillator. No external load capacitors are needed, and the MEMS structure offers better shock and vibration immunity than quartz.