Microchip DSC1033CI1-054.0000T, PureSilicon™ MEMS XO, 54 MHz, CMOS, ±50 ppm, -40 to 85°C, 3.3V supply, standby (power-down) function, 4-SMD package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1033, PureSilicon™ |
| Mounting | Surface Mount |
| Supply voltage | 3.3V |
| Current - supply | 4mA (Typ) |
| Current - supply (Disable) | 1µA |
| Frequency | 54 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 | Tape & Reel (TR) |
| Function | Standby (Power Down) |
| Base resonator | MEMS |
| Case | 4-SMD, No Lead |
The DSC1033CI1-054.0000T: This is a 54 MHz XO (standard) based on a MEMS resonator, not a quartz crystal — the frequency is set at the factory and does not require external load capacitors or a separate crystal. For a battery-powered design that clocks a processor at 54 MHz and sleeps most of the time, the oscillator's own draw during sleep is negligible.
The 4-SMD, no-lead package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a compact footprint that fits tight PCB real estate.
Yes — the function is listed as Standby (Power Down). When the enable pin is driven low, the oscillator stops and the supply current drops to 1 µA typical. The output goes high-impedance in standby, so the downstream logic sees a floating input unless pulled low externally.