MCHPKSZ8081RNACA-TR
Overview
The KSZ8081RNACA is a single-supply 10BASE-T/100BASE-TX Ethernet physical layer transceiver designed for RMII v1.2 applications. It integrates on-chip termination resistors and features a unique 50 MHz reference clock output to simplify MAC-to-PHY synchronization.
Why Choose This Part
This transceiver reduces BOM costs by integrating termination resistors and supporting LinkMD TDR-based cable diagnostics. It features flexible power management with modes as low as 1360 uA in shutdown and offers HP Auto MDI/MDI-X for automatic cable correction.
Applications
Key Specifications
Getting Started
Designers should ensure the 50 MHz reference clock source is stable, whether using the internal oscillator or an external input. Microchip provides the KSZ8081RNA Evaluation Board to test the RMII interface and MDIO/MDC register configuration before finalizing the PCB layout.
KSZ8081 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Protocol | Package | Temp Range | Stock |
|---|---|---|---|---|
| KSZ8081RNACA-TR (this part) Tape & Reel | RMII | VFQFN-24 | 0degC ~ 70degC | 60,096 |
| KSZ8081RNAI (Microchip (formerly Micrel)) | RMII | VFQFN-24 | -40degC ~ 85degC | 43,432 |
| KSZ8081MNXCA-TR Tape & Reel | MII | VFQFN-32 | 0degC ~ 70degC | 4,678 |
| KSZ8081RNBCA-TR (Microchip (formerly Micrel)) Tape & Reel | RMII | VFQFN-32 | 0degC ~ 70degC | 19,338 |
