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Microchip Technology DSC1502AI3A-66M66670T — Crystals & Oscillators

DSC1502AI3A-66M66670T XO 66.6667 MHz LVCMOS MEMS Oscillator

MPNDSC1502AI3A-66M66670T
Active

Microchip DSC1502AI3A-66M66670T, DSC150X series, XO (Standard), 66.6667 MHz, LVCMOS output, ±20 ppm stability, -40°C to +85°C, 2.5V-3.3V supply, 4-VDFN exposed pad package, standby power-down function.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1502AI3A-66M66670T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC150X
MountingSurface Mount
Voltage2.5V ~ 3.3V
Current - supply7.5mA
Current - supply (Disable)1.8µA (Typ)
Frequency66.6667 MHz
Frequency stability±20ppm
Operating temperature-40°C~85°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputLVCMOS
PackageTape & Reel (TR)
FunctionStandby (Power Down)
Base resonatorMEMS
Case4-VDFN Exposed Pad

Product details

66.6667 MHz fixed-frequency clock with ±20 ppm hold

The supply voltage spans 2.5V to 3.3V, so the same oscillator can serve a 2.5V FPGA bank or a 3.3V Ethernet PHY without a separate regulator or level translator.

Standby power-down for battery-duty cycling

The 4-VDFN exposed-pad package (7.00 mm x 5.00 mm, 0.90 mm seated height) is a standard MEMS oscillator footprint; the exposed pad should be soldered to a ground-plane thermal land for best thermal and electrical performance.

Frequently asked questions

How can I order the DSC1502AI3A-66M66670T or check availability?

The DSC1502AI3A-66M66670T is an active Microchip XO oscillator. We source it through independent distribution — submit an RFQ with your target quantity and target price, and we will confirm current availability and a firm quote. No stock-holding claim is made here; every order is quoted to order.

Is the DSC1502AI3A-66M66670T RoHS compliant?

The evidence does not explicitly list a RoHS compliance status. For a definitive answer, request the manufacturer's RoHS/REACH certificate through the RFQ process — we can obtain it from the supply chain.

What is the standby power-down function on this oscillator?

When the enable pin is driven low, the oscillator enters a standby (power-down) mode that reduces supply current to 1.8 µA typical. The output goes high-impedance. Re-asserting the enable pin restarts the MEMS resonator and brings the output back to the specified frequency within the start-up time — no crystal warm-up delay.

What voltage range does the DSC1502AI3A-66M66670T support?

The supply voltage range is 2.5V to 3.3V. The oscillator will operate correctly at any voltage within that window, so it can be powered from a 2.5V or 3.3V rail without an external regulator.