MEMS oscillator for automotive timing — 3.579 MHz, CMOS, standby
The DSC1001CI3-003.5790T is a MEMS-based XO (Standard) from Microchip's DSC1001 series, delivering a 3.579 MHz CMOS output from a 4-VDFN package. The standby (power-down) function drops supply current to 15 µA max — useful for modules that sleep between CAN wake-up cycles without a separate load-switch for the oscillator.
Supply range, frequency stability, and standby current
Operates from 1.8 V to 3.3 V, covering the common 1.8 V, 2.5 V, and 3.3 V logic rails without a voltage translator on the oscillator supply. The absolute pull range is ±20 ppm, which sets the frequency accuracy across voltage and temperature — enough for a UART baud clock or a CAN controller time base. Active supply current is 8 mA max; in standby the oscillator draws 15 µA max, preserving battery in always-powered automotive modules that spend most of their life asleep.
Package and mounting — 4-VDFN, 3.20 mm x 2.50 mm
Housed in a 4-VDFN package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm max. The surface-mount footprint is compact enough for space-constrained ECU and sensor PCBs; the 0.90 mm height clears most enclosure standoffs.
Active lifecycle — quoted to order
Supplied in Tape & Reel (TR) — store the reels dry; the 4-VDFN package is not moisture-sensitive by default, but standard MSL handling applies. Quoted to order against the BOM quantity; availability confirmed at RFQ.