DSC1033DE1-045.0000T Microchip Crystal or Oscillator (Other) In Stock
Microchip DSC1033DE1-045.0000T is a 45 MHz MEMS CMOS oscillator with 3.3 V supply, power-down standby mode, and CMOS-compatible output in a 4-pad SMD no-lead package. Available worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- DSC1033DE1-045.0000T Datasheet PDF
- Category
- Crystal or Oscillator
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 45 MHz MEMS-based oscillator with superior shock and vibration resistance compared to quartz crystal alternatives for rugged environments
- 3.3 V supply with low-power standby (power-down) mode reducing current consumption to under 10 µA for battery-sensitive designs
- Compact 4-pad SMD no-lead package enabling tight PCB placement near FPGAs and processors requiring a stable 45 MHz reference clock
Applications
The DSC1033DE1-045.0000T provides a stable 45 MHz reference clock for FPGAs, DSPs, and network processors in industrial and communications equipment where quartz crystal oscillators may be damaged by mechanical shock. Its MEMS technology eliminates the aging and fragility issues associated with traditional quartz-based oscillators, making it preferred for handheld instruments and portable industrial devices subject to vibration up to 70 g. The standby mode allows host controllers to disable the clock output and reduce system idle power consumption in energy-sensitive IoT edge nodes.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output frequency and supply voltage does the DSC1033DE1-045.0000T provide for digital system clocking?
The DSC1033DE1-045.0000T outputs a fixed 45 MHz CMOS clock signal from a 3.3 V supply rail. This frequency is commonly used as a reference for USB, Ethernet PHY, and FPGA fabric clocking, and can be divided or multiplied by on-chip PLLs to generate derived clocks at 90 MHz, 180 MHz, or other standard system frequencies without requiring a separate crystal or PLL reference oscillator.
How does the MEMS technology in the DSC1033DE1-045.0000T improve reliability over quartz crystals in harsh environments?
MEMS oscillators like the DSC1033DE1-045.0000T withstand mechanical shock up to 50,000 g and vibration environments exceeding 70 g RMS, far beyond the typical 2,000 g shock rating of quartz crystals. This robustness allows the oscillator to maintain frequency stability within ±50 ppm in handheld test equipment, vehicle-mounted computers, and industrial robots where quartz crystals would fracture or shift frequency under repeated mechanical stress.
What is the standby current of the DSC1033DE1-045.0000T and how does it benefit battery-powered designs?
The DSC1033DE1-045.0000T enters a standby state with current consumption below 10 µA when the power-down control pin is asserted. In a 3.3 V system, this represents less than 33 µW of standby power, allowing an IoT device with a 1000 mAh battery to keep the oscillator in standby for over 100,000 hours before significant battery drain. This is approximately 10 times better than active-mode quartz oscillators drawing 5 mA to 10 mA continuously.
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