KSZ8893MBL

Controllers Overview

The KSZ8893MBL is a Layer 2 managed switch IC designed for low port count, cost-sensitive 10/100 Mbps Ethernet systems. It integrates three MAC units and two PHYs with patented mixed-signal low-power technology. The device supports 10BASE-T and 100BASE-TX on both PHYs, while Port 1 additionally supports 100BASE-FX. It features a high-speed non-blocking switch fabric, an address lookup engine, and on-chip frame buffer memory. Operating at commercial temperatures (0°C to +70°C), it utilizes a single 3.3V power supply and is housed in a lead-free 100-ball LFBGA package.

Controllers Feature Summary

• Integrated 3-Port Switch Architecture: Combines three MACs and two PHYs with a non-blocking switch fabric and store-and-forward architecture.
• Advanced Management Capabilities: Supports IEEE 802.1q VLAN, QoS prioritization, rate limiting, IGMP/MLD snooping, and spanning tree protocols.
• Flexible Interface Support: Provides MII, RMII, SNI, SPI, I2C, and SMI interfaces for CPU control and data transfer.
• Diagnostic and Monitoring Features: Includes LinkMD cable diagnostics, port mirroring/sniffing, loopback modes, and comprehensive MIB counters.

Controllers Applications

• Media Converters
• VoIP Phones
• SOHO Residential Gateways
• Wireless LAN Access Points
• Standalone 10/100 Switches

Controllers Procurement Notes

Verify the specific ordering suffix 'BL' confirms the 100-ball LFBGA package and commercial temperature range. Confirm RoHS compliance status and moisture sensitivity level prior to PCB design. Ensure ESD handling procedures are followed during assembly due to the fine-pitch BGA package requirements.

Controllers Selection Notes

Select this component when a compact footprint is required compared to the PQFP variant. Verify that the host system can accommodate the 100-ball LFBGA soldering profile. Ensure the application requires commercial temperature operation; otherwise, consider the industrial grade MBLI or automotive grade variants.

Controllers Part Context

This part belongs to the KSZ8893M family of integrated 3-port switches. It shares functional parity with the KSZ8893MQL but differs in physical packaging. The family includes industrial (MBLI) and automotive (MQL AM) grades for extended environmental tolerance.

Controllers Replacement Considerations

KSZ8893MBLI provides identical functionality in the same package but operates across the industrial temperature range (-40°C to +85°C).

Controllers FAQ

Does the KSZ8893MBL support fiber optic connections?

Yes, Port 1 supports 100BASE-FX fiber optic connectivity in addition to copper ports.

What management interfaces are available?

The device supports SPI, I2C, SMI, MIIM, and 7-wire SNI for configuration and monitoring.

Is auto-crossover supported?

Yes, HP Auto MDI-X is supported for reliable detection and correction of straight-through and crossover cables.