What this MEMS XO does on the board
The DSC6023HI2A-00A4T: It provides a CMOS output, so it interfaces directly with the clock input of most MCUs, FPGAs, and logic without needing an external level translator.

Microchip Technology DSC60XX series XO (Standard) MEMS oscillator, DSC6023HI2A-00A4T, dual output 20MHz & 25MHz, CMOS, 1.71V~3.63V, ±25ppm, -40°C~85°C, 4-VFLGA package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC60XX |
| Supply voltage | 1.71V ~ 3.63V |
| Current - supply | 1.3mA (Typ) |
| Frequency stability | ±25ppm |
| Frequency - output 1 | 20MHz, 25MHz |
| Operating temperature | -40°C~85°C |
| Height | 0.035\" (0.89mm) |
| Size (Dimension) | 0.063\" L x 0.047\" W (1.60mm x 1.20mm) |
| Output | CMOS |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Base resonator | MEMS |
| Case | 4-VFLGA |
The DSC6023HI2A-00A4T: It provides a CMOS output, so it interfaces directly with the clock input of most MCUs, FPGAs, and logic without needing an external level translator.
The DSC6023HI2A-00A4T is obsolete per Microchip.