KSZ8721BLI Microchips Ethernet Physical Layer Transceiver PHY Chip

KSZ8721BLI is a 10/100BASE-T/TX/FX Ethernet physical layer transceiver (PHY) from Microchip Technology

designed for high-performance network connectivity in embedded systems.

Key Features of KSZ8721BLI

1. Ethernet Standards Compliance

   • Supports 10BASE-T, 100BASE-TX, and 100BASE-FX standards, fully compliant with IEEE 802.3 & IEEE 802.3u

   • Integrated Physical Medium Attachment (PMA), Physical Medium Dependent (PMD), and Physical Coding Sublayer (PCS) functions

2. Interfaces & Flexibility

   • Supports MII (Media Independent Interface) and RMII (Reduced MII) for host communication

   • On-chip 10BASE-T output filtering, eliminating the need for external filters

3. Auto-Negotiation & Configuration

   • Automatic speed (10/100 Mbps) and duplex (full/half) negotiation

   • Configurable via MII management interface or external control pins

4. Power Efficiency

   • Single 3.3V power supply with built-in regulator (2.5V core)

   • Low power consumption (<340mW, including driver current)

5. Robust Design

   • 48-pin LQFP package (7×7 mm, surface-mount)

   • Industrial temperature range (-40°C to +85°C)

Applications

The KSZ8721BLI is widely used in:

• Industrial Automation: PLCs, motor control systems.

• Consumer Electronics: Smart home devices, network printers.

• Telecom & Networking: Routers, switches, and modems.

• Embedded Systems: IoT gateways, medical devices.

Technical Summary

• Package: 48-pin LQFP.

• Data Rates: 10/100 Mbps.

• Key Protocols: MII, RMII.

• Compliance: RoHS, AEC-Q100 (industrial grade)

KSZ8721BLI Microchips

KSZ8721BLI PHY chip

Ethernet Physical Layer Transceiver chip

KSZ8721BLI Microchips Ethernet Physical Layer Transceiver PHY Chip Images