1894KI-43LFT

Overview

The Renesas Electronics Corporation 1894KI-43LFT is an Ethernet Physical Layer Controller designed for high-speed networking applications. It supports the 10/100 Base-T/TX PHY standard and features a parallel interface. The device operates within a supply voltage range of 3.14V to 3.47V and functions reliably across an industrial temperature range of -40°C to 85°C. It is housed in a 40-TQFN package with an exposed pad, providing a compact solution for embedded network connectivity.

Feature Summary

• Supports 10/100 Base-T/TX Ethernet standards
• Integrates physical layer controller functionality
• Utilizes parallel interface for data transmission
• Operates within extended industrial temperature ranges

Applications

• Data center networking equipment
• Industrial automation systems
• Embedded network gateways
• High-speed communication modules

Procurement Notes

Verify component authenticity through authorized distributors due to potential legacy status. Confirm RoHS3 compliance and MSL level 3 handling requirements during storage and assembly. Check for recent PCN updates regarding assembly site changes or label modifications before finalizing procurement orders.

Selection Notes

Select this model when requiring a robust 10/100 Mbps PHY solution with wide operating temperature tolerance. Ensure the design accommodates the 3.14V to 3.47V supply voltage constraints. Verify that the 40-TQFN package dimensions align with the PCB layout and thermal management strategy.

Part Context

This component belongs to the 1894KI series of Ethernet controllers from Renesas. It serves as a physical layer transceiver for integrating Ethernet capabilities into digital systems. The part is distinct from similar models by its specific package type and temperature rating configuration.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Renesas resources for current lifecycle status and potential obsolescence notices.