Microchip Technology DSC1121AI2-016.0000T, XO (Standard) MEMS oscillator, 16 MHz CMOS output, ±25 ppm stability, 2.25 V to 3.6 V supply, -40°C to +85°C, 6-VDFN exposed pad package, tape and reel.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 16 MHz |
| Frequency stability | ±25ppm |
| Operating temperature | -40°C~85°C |
| Size (Dimension) | 0.276\" L x 0.197\" W (7.00mm x 5.00mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tape & Reel (TR) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN Exposed Pad |
The disabled current of 22 mA is not a true shutdown — the MEMS resonator and PLL stay active, so the part is not intended for battery-powered sleep modes. For a gated clock, the disable state saves roughly 13 mA compared to the enabled draw.
The 6-VDFN exposed pad package measures 7.00 mm x 5.00 mm x 0.90 mm — a standard 7x5 mm oscillator footprint that is pin-compatible with many quartz-based XOs in the same form factor.
No stock-holding claim is made.
The output is CMOS, single-ended, which interfaces directly with most MCU clock inputs, FPGA global clock pins, and logic buffers without external termination.
It accepts 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V logic rails. The wide range means a single BOM line can serve boards with different core voltages.
The 7.00 mm x 5.00 mm 6-VDFN package matches the common 7x5 mm oscillator footprint used by many quartz-based XOs. Pin compatibility depends on the specific quartz part's pinout — confirm the enable/disable and supply pin assignments against your existing layout. The MEMS construction eliminates quartz startup delay and offers better shock and vibration tolerance.
The enable/disable pin tri-states the CMOS output while keeping the internal oscillator running. Maximum supply current drops from 35 mA to 22 mA — a partial power reduction, not a full shutdown. The output returns to valid levels within one clock cycle after re-enable.