The DSC1001AE2-004.0000 is a MEMS-based oscillator (XO) delivering a 4 MHz CMOS output with ±25 ppm frequency stability, qualified to AEC-Q100. This is the first gate in the timing chain for any automotive ECU that needs a clean reference clock without a crystal's startup delay.
Standby function and current budget for battery-backed ECUs
For a module that spends most of its life in sleep — a door controller or a telematics unit — this 400× current reduction preserves the battery reserve.
Supply voltage flexibility and operating temperature range
The oscillator operates from a 1.8V to 3.3V supply rail — a single part covers 1.8V, 2.5V, and 3.3V logic domains without a separate regulator.
Package and board-level integration
The 4-SMD, no-lead exposed pad package measures 7.00 mm × 5.00 mm with a seated height of 0.90 mm. The MEMS resonator itself eliminates the need for external load capacitors, saving two passives per clock line.