25 MHz / 27 MHz dual-output MEMS XO — 3 mA typ draw
The DSC6122CI2A-00AWT: The dual-frequency capability lets a single oscillator clock two different domains (e.g., a 25 MHz Ethernet PHY and a 27 MHz USB hub) without a second can or a PLL fan-out buffer. Total supply current is 3 mA typical (max), which for a dual-output MEMS oscillator is roughly half the combined draw of two discrete quartz cans at these frequencies.
The no-lead footprint keeps the PCB land pattern simple; the four terminals are supply, ground, and the two CMOS outputs. Cut Tape suits prototype or small-run builds where the reel minimum exceeds the build count.
Obsolete — last-time-buy history, no successor on record
No official pin-compatible successor is listed; the DSC61XX family has been superseded by later MEMS oscillator families that do not share the same dual-frequency pinout. For an existing BOM that depends on this exact dual-output configuration, the supply path is through independent distribution and surplus channels. Quantities are lot-specific; date-code and traceability are confirmed at the time of RFQ. A board-spin to a newer Microchip MEMS oscillator (e.g., the DSC61XXB or DSC2311 family) would require a pinout check and possibly a firmware update for the output frequencies.