What the AEC-Q100 rating buys the design
At 1.8432 MHz with ±10 ppm frequency stability, it clocks UART baud rates (115200, 230400) with enough margin to skip a second oscillator for the serial bus.
Supply voltage and output compatibility
Runs from 1.8V to 3.3V — one part number covers both 1.8V and 3.3V logic domains, so a mixed-voltage board uses the same oscillator for the MCU core clock and the I/O peripheral clock.
Temperature grade and package for the board
4-SMD no-lead package, 2.50 mm x 2.00 mm, 0.90 mm seated height — the small footprint fits tight layout zones near the processor; the no-lead construction avoids tombstoning during reflow.