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Microchip Technology DSC1124CI5-156.2578T — Crystals & Oscillators

DSC1124CI5-156.2578T MEMS XO 156.2578 MHz HCSL ±10 ppm -

MPNDSC1124CI5-156.2578T
Active

Microchip Technology DSC1124 series MEMS XO, 156.2578 MHz HCSL output, ±10 ppm stability, 2.25 V to 3.6 V supply, -40°C to 85°C, 6-SMD no-lead package, enable/disable function.

$4.1700Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1124CI5-156.2578T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1124
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply42mA
Current - supply (Disable)22mA
Frequency156.2578 MHz
Frequency stability±10ppm
Operating temperature-40°C~85°C
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.035\" (0.90mm)
OutputHCSL
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

156.2578 MHz HCSL MEMS oscillator — industrial temp, active production

The DSC1124CI5-156.2578T: HCSL (High-Speed Current Steering Logic) is the differential clock format used in PCI Express and 10GbE reference designs — the 156.2578 MHz frequency aligns with the 156.25 MHz nominal for 10GbE, with the extra 7.8 kHz accounted for by the ±10 ppm tolerance.

The 6-SMD no-lead package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a standard MEMS oscillator footprint that fits most high-speed clock sockets without layout changes.

Supply voltage range and power budget

Maximum supply current is 42 mA; with the output disabled, it drops to 22 mA.

Frequently asked questions

What is the frequency stability of the DSC1124CI5-156.2578T?

This is tight enough for 10GbE reference clocks without external temperature compensation.

Does the DSC1124CI5-156.2578T have an enable/disable function?

Yes, it has an enable/disable function. When disabled, the supply current drops from 42 mA to 22 mA, allowing power gating or test-mode isolation.