18.432 MHz MEMS XO — what it clocks and where it fits
A MEMS-based XO (standard oscillator) from Microchip's DSC60XX family, the DSC6001HI2A-018.4320T delivers a fixed 18.432 MHz CMOS output — a common clock frequency for MCU UART baud-rate generation (115200 / 57600) and CAN transceiver reference timing. Runs from a 1.71 V to 3.63 V supply rail, drawing 1.3 mA typical — the low current and wide voltage range let it share a 1.8 V or 3.3 V rail without a separate LDO.
No official successor or pin-compatible drop-in is listed by Microchip for this specific frequency and package variant. The DSC60XX series includes other 18.432 MHz parts, but package size, supply voltage, or temperature grade may differ — verify the full spec before substituting. No stock-holding claim; sourced per order.
Housed in a 4-VFLGA package measuring 1.60 mm x 1.20 mm with a seated height of 0.89 mm — a compact footprint for space-constrained automotive PCBs. Surface-mount, supplied on Tape & Reel. Frequency stability is ±25 ppm APR (Absolute Pull Range) — sufficient for most UART and CAN timing budgets; not intended for precision RF or GPS reference use.