What this 45.1584 MHz MEMS oscillator replaces on your BOM
The 6-VDFN package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a low-profile footprint that fits tight board stacks in portable instrumentation or compact I/O modules.
DSC1121CI2-045.1584 MEMS Oscillator – 45.1584 MHz, CMOS
MPNDSC1121CI2-045.1584
Active
Microchip DSC1121 series, XO (Standard), 45.1584 MHz, CMOS output, 2.25V~3.6V supply, -40°C~85°C, ±25 ppm APR, 6-VDFN surface-mount package
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 45.1584 MHz |
| 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 | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN |
| Absolute pull range | ±25ppm |
Product details
Frequently asked questions
What is the exact frequency of DSC1121CI2-045.1584?
The output frequency is 45.1584 MHz.
What supply voltages can DSC1121CI2-045.1584 work with?
It accepts a supply voltage from 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails directly.
What is the output type of DSC1121CI2-045.1584?
The output is CMOS, making it a drop-in replacement for standard 45.1584 MHz crystal oscillators in digital logic circuits.