1894KI-40LFT

Overview

The Renesas Electronics Corporation 1894KI-40LFT is an Ethernet Physical Layer Controller belonging to the PHYceiver™ series. It functions as a 10/100 Base-T/TX PHY with a parallel interface, housed in a 40-VFQFPN (6x6) package featuring exposed pads. The device operates on a supply voltage range of 3.14V to 3.47V and supports data rates of 10 Mb/s and 100 Mb/s. It is designed for commercial temperature environments ranging from 0°C to 70°C. The component complies with RoHS3 standards and carries an MSL rating of 3.

Feature Summary

• Integrated 10/100 Base-T/TX physical layer controller for Ethernet connectivity
• Parallel interface architecture for system integration
• Commercial grade operational temperature capability

Applications

• Ethernet network interface implementations
• Industrial control systems requiring 10/100 Mbps connectivity
• Embedded networking hardware

Procurement Notes

Verify the specific suffix LFT against official datasheets to confirm lead-free status and tape-and-reel packaging configuration. Confirm that the 40-VFQFPN package dimensions match the target PCB footprint requirements. Ensure the commercial temperature range aligns with the final product's environmental specifications before procurement.

Selection Notes

Select this component when a parallel interface PHY is required for 10/100 Ethernet applications within commercial temperature limits. Compare against the 1894K-32LFT if a smaller 32-pin package is sufficient for the design constraints. Verify that the 3.3V nominal supply voltage falls within the specified 3.14V to 3.47V operating range.

Part Context

This part is part of the 1894KI family, which includes variants like the 1894KI-40LF. The 1894KI-40LFT specifically denotes the lead-free version in tape-and-reel packaging. It shares core functionality with other PHYceiver devices but is distinguished by its pin count and interface type.

Replacement Considerations

The 1894KI-40LF is a related variant, typically supplied in trays rather than tape-and-reel. Verify package compatibility and ensure the functional differences between suffixes do not impact the design.