MCHPKSZ8091RNACA-TR
Overview
The KSZ8091RNACA-TR is a single-chip 10BASE-T/100BASE-TX Ethernet physical layer transceiver featuring an RMII v1.2 interface. It is designed for low power consumption, requiring only 47mA during full-duplex 100BASE-TX traffic, and includes on-chip termination resistors to simplify PCB layout. This PHY supports Energy Efficient Ethernet (EEE) and provides a 50 MHz reference clock output to the MAC, reducing the need for external clocking components.
Why Choose This Part
Integration is simplified through built-in termination resistors and HP Auto MDI/MDI-X, which automatically corrects crossover cable connections. The device is highly power-efficient, utilizing an Energy-detect power-down mode (EDPD) and EEE support to reduce power to 23mA during low-traffic periods.
Applications
Key Specifications
Getting Started
To evaluate this PHY, use the KSZ8091RNA-EVAL board which provides access to the RMII interface and configuration pins. Configuration is managed via the MDC/MDIO management interface, allowing access to internal registers for status monitoring and link optimization.
KSZ8091 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Temp Range | Stock |
|---|---|---|
| KSZ8091RNACA-TR (this part) Tape & Reel | 0degC ~ 70degC | 4,020 |
| KSZ8091RNAIA-TR Tape & Reel | -40degC ~ 85degC | 5,440 |
