859S0412BGILF Overview
There is a case option of 20-TSSOP (0.173, 4.40mm Width) available for this clock divider. There is a Tube packaged with it. Normal operation is limited to 3GHz. As far as I can tell, it is mounted by Surface Mount. Electronic parts classified as Fanout Buffer (Distribution), Multiplexer are considered to be safety components. It is recommended to set the temperature to -40°C~85°C so the system can perform reliably. In order for it to function, a power source of 2.375V~3.465V V must be available. As a result, the output is LVDS, LVPECL.
859S0412BGILF Features
The operating temperature of -40°C~85°C degrees

859S0412BGILF Applications
There are a lot of Renesas Electronics America Inc.
859S0412BGILF Clock Buffers & Drivers applications.

Clock signal duplication
Clock signal format conversion
Clock signal level shifting
High performance communication system
Data center
Cloud computing
Network
High speed industry
High-end consumer electronics
Data communication

Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173, 4.40mm Width)
Operating Temperature	-40°C~85°C
Packaging	Tube
Part Status	Last Time Buy
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Type	Fanout Buffer (Distribution), Multiplexer
Voltage - Supply	2.375V~3.465V
Output	LVDS, LVPECL
Number of Circuits	1
Frequency (Max)	3GHz
Input	CML, LVDS, LVPECL
Ratio - Input:Output	4:2
Differential - Input:Output	Yes/Yes
RoHS Status	ROHS3 Compliant