Description
The ICS9EX21501 provides 15 output clocks for PCIe Gen2
(100MHz) or QPI (133MHz) applications. A differential CPU clock
from a CK410B+ main clock generator, such as the ICS932S421,
drives the ICS9EX21501. In fanout mode, the ICS9EX21501
provides outputs up to 400MHz. A 2:1 input mux allows selection
between local and remote clock sources.

Features/Benefits:
• Output clock frequencies up to 400 MHz/supports wide
range of applications
• 4 Selectable SMBus addresses/multiple devices can share
SMBus segment
• SMBus address independent of PLL operating mode/
maximum flexibility
• Dedicated CKPWRGD/PD# and VDDA pins/Easy board
design
• 8 Dedicated OE# and 2 Group OE# pins/Support for
hardware clock management