1894KI-34LF Overview
It is available in the 32-TFQFN Exposed Pad package. The packaging is shaped in a Tray-shape, which makes it easy to carry around. Regulating the temperature to -40°C~85°C is crucial to ensuring reliable operation. If you use a 3.14V~3.47VV power supply, you should have no problem. ICS1894-34 numbers are members of the family.
1894KI-34LF Features

1894KI-34LF Applications
There are a lot of Renesas Electronics America Inc.
1894KI-34LF Controllers Interface ICs applications.

Commercial LED Lighting
Smart LED Lighting
Portable Appliances
Battery-Operated Devices
Cellular Data Devices
Factory Automation and Process Controls
IrDA transmission control
Remote transmission formatter
Docking
Mobile Monitors

Package / Case	32-TFQFN Exposed Pad
Operating Temperature	-40°C~85°C
Packaging	Tray
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Voltage - Supply	3.14V~3.47V
Base Part Number	ICS1894-34
Function	Physical Layer Controller
Interface	Parallel
Protocol	Ethernet
Standards	10/100 Base-T/TX PHY