The DSC1001CI5-026.0000 is a MEMS-based standard oscillator (XO) delivering a fixed 26 MHz CMOS output from a 1.8V to 3.3V supply rail.
The 1.8V–3.3V supply range means the same part works across a 3.3V I/O bank or a 1.8V core rail — no level shifter needed between the oscillator output and the downstream clock input.
4-SMD no-lead package and board-fit note
Housed in a 4-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm, this oscillator lands on a standard 4-pad land pattern common to many MEMS and quartz oscillators.
It is in production and suitable for new designs.