Microchip KSZ8851SNL

EthernetКонтроллерSPI1,8 В, 2,5 В, 3,3 В

Overview

The KSZ8851SNL is a single-port controller chip with a SPI or 8-/16-/32-bit non-PCI CPU interface. Available in 32-/48-/128-pin packages, the KSZ8851SNL is for applications requiring cost-effective, high-throughput Ethernet connectivity in traditional embedded systems with MCUs or MPUs.

The KSZ8851SNL is a single chip, mixed analog/digital device offering Wake-on-LAN technology for effectively addressing Fast Ethernet applications. It consists of a Fast Ethernet MAC controller, an 8-bit or 16-bit generic host processor interface and incorporates a unique dynamic memory pointer with 4-byte buffer boundary and a fully utilizable 18KB for both TX (allocated 6KB) and RX (allocated 12KB) directions in host buffer interface.The KSZ8851SNL is designed to be compliant with the appropriate IEEE 802.3u standards. An industrial temperature-grade version of the KSZ8851SNL is also available.Physical signal transmission and reception are enhanced through the use of analog circuitry, making the design more efficient and allowing for lower-power consumption.The KSZ8851SNL is designed using a low-power CMOS process that features a single 3.3V power supply with options for 1.8V, 2.5V or 3.3V VDD I/O. The device includes an extensive feature set that offers management information base (MIB) counters and CPU control/data interfaces with single shared data bus timing. The KSZ8851SNL includes unique cable diagnostics feature called LinkMD®. This feature determines the length of the cabling plant and also ascertains if there is an open or short condition in the cable. Accompanying software enables the cable length and cable conditions to be conveniently displayed. In addition, the KSZ8851SNL supports Hewlett Packard (HP) Auto-MDIX thereby eliminating the need to differentiate between straight or crossover cables in applications.Microchip's complimentary and confidential LANCheck® online design review service is available for customers who have selected our products for their application design-in. The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

Features

Applications

• PC Motherboards
• 0 to 10V Dimming Luminaires
• Dimmable LED Power Supply
• Dimming Control Devices
• Commercial LED Lighting
• Smart LED Lighting
• Portable Appliances
• Battery-Operated Devices
• Cellular Data Devices
• Factory Automation and Process Controls