MEMS oscillator for automotive clocking
The DSC1001CE3-064.0000 is a MEMS-based XO (Standard) from Microchip's DSC1001 series, delivering a 64 MHz CMOS output with ±20 ppm frequency stability across its -20°C to 70°C operating range. AEC-Q100 qualification makes this part suitable for automotive electronics — the MEMS resonator withstands the shock and vibration profile of under-hood and cabin environments better than a quartz crystal. The 1.7V–3.6V supply range lets it run directly from a 1.8V, 2.5V, or 3.3V rail without an intermediate LDO, simplifying power distribution on mixed-voltage boards.
Active current draw is 10.5 mA max at 64 MHz; when the standby (power-down) pin is asserted, the oscillator sinks only 15 µA max — a 700:1 reduction that preserves battery life in key-off or sleep states. The standby function is a logic-level input, not a supply-rail switch — the oscillator remains powered but the output is disabled and the internal PLL stops, so wake-up time is deterministic.
Housed in a 4-VDFN package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm, the footprint matches standard 3.2 x 2.5 mm quartz oscillators — a drop-in replacement for existing layouts. Surface-mount assembly with the 4-pin VDFN land pattern; no special via-in-pad or thermal relief required for this low-power device.
No official successor or second-source cross-reference is published. The DSC1001 series is a single-sourced Microchip line; for high-volume automotive programs, confirm continuity with the factory through the distributor.