9ZX21901DKLFT Overview
You can find it in the package Tape & Reel (TR). A 72-VFQFN Exposed Pad-serial number is attached to the packaging of this product, which is packaged in a case. There is a recommended mounting type of Surface Mount. normaloperation is restricted to 400MHz frequency. 0°C~70°C TA can operate at a variety of temperatures. The component can provide a voltage of 3.135V~3.465V. In this component, Intel QPI, PCI Express (PCIe) is the primary function. The output is set to HCSL.
9ZX21901DKLFT Features
Mounting Type: Surface Mount
run the output at th range of HCSL

9ZX21901DKLFT Applications
There are a lot of Renesas Electronics America Inc.
9ZX21901DKLFT application specific timer applications.

Broadcast video/audio timing
Processor and FPGA clocking
Any-frequency clock conversion
MSAN/DSLAM/PON
Fibre Channel, SAN
Telecom line cards
1 GbE and 10 GbE
Servers, Storage, Search Acceleration
Ethernet Switches, Routers
Small Cells, Mobile Backhaul/Fronthaul

Mounting Type	Surface Mount
Package / Case	72-VFQFN Exposed Pad
Operating Temperature	0°C~70°C TA
Packaging	Tape & Reel (TR)
Part Status	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Voltage - Supply	3.135V~3.465V
Output	HCSL
Frequency (Max)	400MHz
Input	Clock
Ratio - Input:Output	1:19
PLL	Yes with Bypass
Differential - Input:Output	Yes/Yes
Main Purpose	Intel QPI, PCI Express (PCIe)
RoHS Status	ROHS3 Compliant