Description
The 9EX21801 provides 18 output clocks for PCIe Gen2
(100MHz) or QPI (133MHz) applications. The 9EX21801 has 4
selectable SMBus addresses, and dedicated CKPWRGD/PD#
and VDDA pins for easy board design. A differential CPU clock
from a CK410B+ main clock generator, such as the 932S421,
drives the 9EX21801. In fanout mode, the 9EX21801 provides
outputs up to 400MHz.

Features/Benefits
• Supports output clock frequencies up to 400 MHz
• 4 Selectable SMBus addresses
• SMBus address is independent of PLL operating mode
• Dedicated CKPWRGD/PD# and VDDA pins ease board
design
• Available in industrial temperature range (-40°C to +85°C)