KSZ8852HLEYA

Controllers Overview

The KSZ8852HLEYA is a two-port 10/100 Ethernet switch with an 8- or 16-bit host interface, manufactured by Microchip Technology. It integrates a non-blocking store-and-forward switch fabric, three MAC units, and two IEEE 802.3/802.3u compliant PHY transceivers. The device supports 10BASE-T and 100BASE-TX standards with HP Auto MDI/MDI-X. Key electrical parameters include a single 3.3V power supply, operating voltage range of 3.135V to 3.465V, and power consumption under 0.5W. It features a 1024-entry forwarding table, 32K frame buffer, and supports VLANs, QoS, and Rapid Spanning Tree Protocol. The component is housed in a 64-pin LQFP package and operates within an extended industrial temperature range of -40°C to +115°C.

Controllers Feature Summary

• Integrates a non-blocking store-and-forward switching fabric with a 1024-entry address look-up table for fast packet delivery.
• Includes two integrated 10/100BASE-T/TX PHY transceivers with HP Auto MDI/MDI-X support and on-chip termination resistors.
• Provides comprehensive management capabilities including MIB counters, port mirroring, loopback modes, and IEEE 802.1w RSTP support.
• Features a flexible 8-bit or 16-bit parallel host interface with indirect data bus access and configurable interrupt schemes.

Controllers Applications

• General and Industrial Ethernet Applications
• Wireless LAN Access Point and Gateway
• Set Top / Game Box
• Test and Measurement Equipment
• Automotive

Controllers Procurement Notes

Verify the specific suffix 'YA' against the manufacturer's official documentation to confirm the exact temperature grade and packaging configuration. Ensure compatibility with the required host interface width (8-bit or 16-bit) and voltage levels (1.8V, 2.5V, or 3.3V I/O). Confirm that the design accounts for the extended industrial temperature range (-40°C to +115°C) specified for this variant. Cross-reference the datasheet revision history for any errata or operational updates relevant to the silicon revision.

Controllers Selection Notes

Select the KSZ8852HLEYA when an embedded solution requires integrated switching, MAC, and PHY functions with a parallel host interface. It is suitable for applications needing robust QoS, VLAN tagging, and energy-efficient Ethernet features. Consider the 64-pin LQFP package constraints and thermal requirements. Evaluate if the 1024-entry forwarding table and 32K frame buffer meet the network traffic demands. Verify that the host processor can support the required 8-bit or 16-bit bus timing and control signals.

Controllers Part Context

The KSZ8852HLEYA belongs to the KSZ8852 product line, which consists of industrial-capable Ethernet switches designed for distributed and daisy-chained topologies. This family offers wire-speed switching and extensive filtering to offload host processing. The HLE suffix typically denotes the extended industrial temperature range and specific package type, while the YA suffix indicates the commercial/industrial grade variation within the LQFP-64 footprint.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Microchip Technology for current cross-reference information or alternative components within the KSZ885x family that match the required interface and temperature specifications.