Microchip Technology DSC1101CI1-120.0000, XO (Standard) 120 MHz CMOS output, MEMS resonator, 2.25V~3.6V supply, -40°C~85°C, ±50 ppm stability, 6-SMD no-lead 3.2mm x 2.5mm package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1101 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 95µA |
| Frequency | 120 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -40°C~85°C |
| Size (Dimension) | 0.126\" L x 0.098\" W (3.20mm x 2.50mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tube |
| Function | Standby (Power Down) |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
Frequency stability is ±50 ppm, which covers general-purpose clocking for microcontrollers, FPGAs, and Ethernet PHYs. If your application requires tighter than ±25 ppm (e.g., precision video or IEEE 1588), this part is not the right fit.
The 3.20 mm x 2.50 mm footprint (industry-standard 3225) with 0.90 mm seated height fits into tight layouts.
Yes, it is a drop-in replacement in terms of footprint (3.2 mm x 2.5 mm 6-SMD) and output (CMOS). The MEMS resonator offers better shock/vibration tolerance and faster startup than quartz, but the ±50 ppm stability is typical for general-purpose use—not a precision upgrade.
The DSC1121 series typically offers lower jitter and tighter frequency stability options (e.g., ±25 ppm) compared to the DSC1101's ±50 ppm. For most MCU/FPGA clocking, the DSC1101 is sufficient; the DSC1121 is worth considering if the PHY or SerDes requires stricter timing margins.