1894K-40LF

Overview

The Renesas Electronics Corporation 1894K-40LF is an Ethernet Physical Layer (PHY) transceiver designed for 10/100 Base-T/TX networks. It operates within a supply voltage range of 3.14V to 3.47V and supports data rates of 10 Mb/s and 100 Mb/s. The device is housed in a 40-VFQFPN package with dimensions of 6x6 mm, featuring exposed pads for thermal management. It is rated for industrial operating temperatures from -40°C to 85°C. This component integrates a single transceiver channel and utilizes the PHYceiver series architecture.

Feature Summary

• Integrated 10/100 Base-T/TX physical layer controller for Ethernet connectivity
• Supports parallel interface configuration for system integration
• Industrial temperature rating for robust environmental operation

Applications

• Ethernet network interface design
• Industrial communication systems
• Embedded networking equipment

Procurement Notes

Verify the exact part number suffix against official manufacturer documentation, as variations such as 'KI' or 'LF' may indicate specific packaging or lead-free compliance differences. Confirm availability status directly with authorized distributors, as production cycles can vary. Ensure that the selected variant matches the required interface type and package specifications for the target application design.

Selection Notes

Select this component when a dedicated 10/100 Mbps Ethernet PHY with parallel interface support is required. Consider the 40-VFQFPN package size for board space constraints. Verify compatibility with the host processor's RMII or MII interface requirements. Check for RoHS3 compliance if environmental regulations apply to the final product assembly.

Part Context

This component belongs to the Renesas PHYceiver series, which focuses on integrated Ethernet solutions. It serves as a physical layer interface between the MAC and the network medium. The 1894K series typically targets cost-effective and compact networking applications requiring reliable 10/100 Mbps performance without complex external circuitry.