Timer IC with a 1 kHz ceiling and sub-50 µA draw
The DS1050U-001+ is a programmable timer from Analog Devices, part of their clock and timing IC line. It generates a 1 kHz output frequency, which sets the timing resolution for interval generation, watchdog timeouts, or periodic wake-up events in a system.
Package, footprint, and physical verification
Housed in an 8-uMAX/uSOP (also listed as 8-TSSOP or 8-MSOP, 0.118" body width, 3.00 mm). The tube delivery means the parts arrive in an antistatic tube, not tape-and-reel. Surface-mount assembly with a standard MSOP-8 footprint. The laser etch on top should read 'DS1050' with a date-code and lot trace code consistent with Analog Devices' marking standard for that assembly site — a font or alignment mismatch flags a potential re-mark.