MEMS oscillator at 24 MHz — what it replaces
It replaces a quartz crystal + load-cap pair with a single surface-mount device that needs no external tuning capacitors — the MEMS resonator and PLL are inside the 6-SMD package.
Automotive-grade temperature range
Supply range and disable function
The supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails common in automotive ECUs. That 13 mA saving matters for a battery-backed controller that spends most of its life in standby.
Housed in a 6-SMD No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm. The land pattern is standard for MEMS oscillators of this footprint — no via-in-pad needed, and the small outline fits tight ECU layouts where a quartz can with 8 mm height would not clear the enclosure lid.
Active lifecycle — no LTB window to chase
Listed as Active by Microchip. The base product number DSC1121 covers a range of frequencies and stabilities; the CI1 suffix on this variant specifies the 24 MHz, ±50 ppm, -40°C to 85°C grade.