Renesas Electronics 9ZX21901DKLF Clock Buffer 72-Pin VFQFPN

The Renesas Electronics second generation DB1900Z differential buffer for Intel Purley and newer platforms. A fixed external feedback maintains low drift for critical QPI/UPI applications.

Fixed feedback path
0ps input-to-output delay
9 Selectable SMBus addresses
multiple devices can share same SMBus segment
8 dedicated OE# pins
hardware control of outputs
PLL or bypass mode
PLL can dejitter incoming clock

Datasheet - 9ZX21901DKLF