The MEMS die replaces the quartz crystal — better shock resistance and faster start-up, with no frequency-pull sensitivity from board-level stress.
Supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails without a separate regulator.
Active production — no replacement needed
Product status is Active. The DSC1121 series remains a current design-in option for new automotive and industrial BOMs. No pin-compatible second source or successor is listed — the part is sole-sourced from Microchip.