The DSC1001DL5-004.0000 is a 4 MHz XO (Standard) oscillator built on a MEMS resonator rather than a quartz crystal — the MEMS die delivers better shock and vibration immunity, which matters when the board sees engine vibration or a drop-test in a portable instrument. The CMOS output drives standard logic families directly — no external level translation for a 3.3 V or 1.8 V MCU clock input.
Supply voltage and frequency stability across temperature
The supply voltage range is 1.8 V to 3.3 V — a single DSC1001DL5-004.0000 can serve a 1.8 V FPGA bank and a 3.3 V MCU on the same board without a separate oscillator for each rail. For a 4 MHz clock, that is ±40 Hz — well within the tolerance of a CAN controller or a USB full-speed crystal circuit. Maximum supply current is 6.3 mA while oscillating — low enough that a small LDO or a 100 mA-rated regulator can power it alongside other low-current loads without thermal concern.
The 4-SMD, No Lead package measures 2.50 mm × 2.00 mm with a seated height of 0.90 mm. This is a standard 2.0 × 2.5 mm footprint — the same land pattern used by many MEMS and quartz oscillators, so a layout change is not required if swapping from a quartz part. Surface-mount assembly with no leads means the package sits flush on the PCB — no through-hole stubs to cause reflections at 4 MHz, though at this frequency the effect is negligible.