KSZ8081RNAI
Overview
The KSZ8081RNAI is a single-supply 10BASE-T/100BASE-TX Ethernet physical layer transceiver designed for compact, low-power networking applications. It utilizes the Reduced Media Independent Interface (RMII) and features integrated termination resistors to reduce the overall Bill of Materials (BOM). The device includes LinkMD TDR-based cable diagnostics to identify common cabling issues in the field.
Why Choose This Part
This transceiver reduces system complexity by integrating the differential pair termination resistors and a 1.2V regulator for the core. It offers excellent power efficiency, consuming as little as 34mA in 100BASE-TX idle mode, and supports high 6kV HBM ESD protection for improved robustness in harsh environments.
Applications
Key Specifications
Getting Started
To evaluate this part, engineers often use the KSZ8081RNA Evaluation Board or interface it with an MCU supporting RMII via standard MDIO management registers. Design ensures should focus on the 50MHz clock source requirements specified for RMII v1.2, typically provided by an external oscillator or a compatible MAC.
KSZ8081 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Protocol | Package | Temp Range | Stock |
|---|---|---|---|---|
| KSZ8081RNAI (this part) | RMII | VFQFN-24 | -40degC ~ 85degC | 43,432 |
| KSZ8081RNACA-TR (Microchip Technology) Tape & Reel | RMII | VFQFN-24 | 0degC ~ 70degC | 60,096 |
| KSZ8081MNXCA-TR (Microchip Technology) Tape & Reel | MII | VFQFN-32 | 0degC ~ 70degC | 4,678 |
| KSZ8081RNBCA-TR Tape & Reel | RMII | VFQFN-32 | 0degC ~ 70degC | 19,338 |
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