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Product Detailed Parameters
- Description：IC CONTROLLER ETHERNET 40QFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Protocol：Ethernet
- Function：Physical Layer Controller
- Interface：Parallel
- Standards：10/100 Base-T/TX PHY
- Voltage - Supply：3.14V ~ 3.47V
- Current - Supply：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：40-TQFN Exposed Pad
- Supplier Device Package：40-QFN (6x6)
- Grade：-
- Qualification：-
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Overview
The 1894KI-44LFT is an Ethernet Physical Layer Controller manufactured by Renesas Electronics Corporation, belonging to the PHYceiver™ series. It functions as a 10/100 Base-T/TX PHY with parallel interface connectivity. 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 utilizes a 20-VFQFN package with exposed pad, designated as 20-VFQFPN(4x4) in supplier documentation. The component is rated for an industrial operating temperature range of -40°C to 85°C and complies with RoHS3 standards.
Feature Summary
- Integrated 10/100 Base-T/TX physical layer transceiver functionality
- Supports RMII (Reduced Media Independent Interface) protocol
- Industrial temperature grade operation capability
Applications
- Ethernet network interface implementation
- Industrial communication systems requiring robust environmental tolerance
- Embedded networking hardware design
Procurement Notes
Verify current availability status as the component is listed as obsolete or end-of-life in distributor records. Confirm final assembly sites and package labeling changes via recent Product Change Notices. Ensure compliance with RoHS3 specifications matches project requirements before procurement.
Selection Notes
Select this part for applications requiring a dedicated 10/100 Ethernet PHY with parallel interface support. Verify that the 20-VFQFN footprint aligns with PCB layout constraints. Consider the industrial temperature range suitability for harsh environments compared to commercial variants.
Part Context
This component is part of the Renesas 1894K family of Ethernet controllers. It shares functional similarities with the 1894K-32LFT and 1894KI-40LFT but differs in pin count and interface configuration. The 'KI' suffix typically denotes industrial temperature rating within this product line.
Replacement Considerations
No verified direct substitute part numbers are available in public documentation. Evaluate alternative Ethernet PHYs from other manufacturers if sourcing is unavailable due to obsolescence.
