250 kHz maximum frequency — what it means for the bus
The DS1090U-32+ tops out at 250 kHz. That is a low-speed clock — think microcontroller watchdog timers, spread-spectrum clocking for EMI reduction, or a simple system clock for a slow peripheral bus. It will not drive a high-speed serial interface or a processor core clock. If the BOM needs a faster reference, this is not the part.
Package and mounting
Housed in an 8-uMAX/uSOP surface-mount package (3.00 mm body width, 0.118" pitch), the part occupies minimal board area. The supplier device package is 8-uMAX/uSOP.
Lifecycle and compliance
The DS1090U-32+ is listed as Active in production with no last-time-buy notice. It is ROHS3 compliant, so it meets the current EU restriction directive.