| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 48-VFQFN Exposed Pad |
| Mfr | Microchip Technology |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Type | Transceiver |
| Data Rate | - |
| Supplier Device Package | 48-QFN (7x7) |
| Voltage - Supply | 1.8V, 2.5V, 3.3V |
| Protocol | Ethernet |
| Number of Drivers/Receivers | 4/4 |
| Duplex | Full |
| Package | Tray |
| Product Status | Active |
| Base Product Number | KSZ9031 |
| REACH Status | REACH Unaffected |
| Other Names | 576-4346 |
| Standard Package | 260 |
| ECCN | 5A991B1 |
| HTSUS | 8542.39.0001 |
KSZ9031RNXIA PHY Ethernet 4/4 Transceiver
The KSZ9031RNXIA from Microchip is a highly integrated, single-port 10/100/1000Mbps Gigabit Ethernet transceiver designed to provide robust physical layer functionality for modern network communication systems. It operates in strict compliance with the IEEE 802.3 standard, fully supporting 10BASE-T, 100BASE-TX, and 1000BASE-T Ethernet protocols over standard Category 5 unshielded twisted pair (UTP) cables. The device interfaces seamlessly with a Media Access Controller (MAC) via the Reduced Gigabit Media Independent Interface (RGMII), facilitating efficient high-speed data transfer with a minimal pin count.
Featuring integrated on-chip termination resistors for both the MAC and line interfaces, the KSZ9031RNXIA significantly reduces external component requirements, simplifying PCB layout and lowering overall system bill of materials costs. Furthermore, it incorporates advanced Energy Efficient Ethernet (EEE) capabilities to drastically reduce power consumption during periods of low data activity, while its robust design includes support for Auto-MDIX, eliminating the need for crossover cables and ensuring versatile connectivity in diverse networking environments.
Alternative PHY Ethernets
1. DP83867IR: A Texas Instruments industrial-grade Gigabit PHY offering low power consumption, RGMII/SGMII MAC interface support, and robust ESD protection for harsh industrial Ethernet networks.
2. RTL8211F-CG: A Realtek highly integrated single-port Gigabit transceiver featuring an RGMII interface and advanced power management, widely utilized in consumer and industrial routing applications.
3. 88E1510-A0-NNB2I000: A Marvell robust Ethernet PHY supporting multiple MAC interfaces and IEEE 1588 precision time protocol for enterprise-level networking and telecommunication infrastructure.
4. KSZ9131RNX: A Microchip next-generation RGMII Gigabit PHY delivering enhanced cable diagnostics, lower latency, and improved EMI performance as a direct functional upgrade to the KSZ9031 family.