MCHPKSZ8081MNXCA-TR
Overview
The KSZ8081MNXCA-TR is a single-supply 10BASE-T/100BASE-TX Ethernet physical layer transceiver designed for data transmission over standard CAT-5 unshielded twisted pair cable. This device utilizes the Media Independent Interface (MII) to transmit and receive data, making it compatible with a wide range of Ethernet MACs found in microcontrollers and SoCs.
Why Choose This Part
This transceiver features a compact 32-pin QFN package (5x5mm) and a highly integrated design that reduces external component count. It operates on a single power supply (3.3V nominal) and maintains low power consumption, typically drawing only 47mA during 100BASE-TX full-duplex operation at 100% utilization.
Applications
Key Specifications
Getting Started
Engineers can evaluate this PHY using Microchip's KSZ8081MNX evaluation boards. When designing the PCB, ensure the MII trace lengths are matched and keep the differential pairs for the Ethernet magnetics away from high-speed digital signals to minimize EMI.
KSZ8081 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Protocol | Package | Temp Range | Stock |
|---|---|---|---|---|
| KSZ8081MNXCA-TR (this part) Tape & Reel | MII | VFQFN-32 | 0degC ~ 70degC | 4,678 |
| KSZ8081RNAI (Microchip (formerly Micrel)) | RMII | VFQFN-24 | -40degC ~ 85degC | 43,432 |
| KSZ8081RNACA-TR Tape & Reel | RMII | VFQFN-24 | 0degC ~ 70degC | 60,096 |
| KSZ8081RNBCA-TR (Microchip (formerly Micrel)) Tape & Reel | RMII | VFQFN-32 | 0degC ~ 70degC | 19,338 |
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