Micrel - KSZ8851 Second Generation Single-Port Ethernet Controller

KSZ8851 — Second Generation Single-Port Ethernet Controller

The KSZ8851 is a single-port embedded controller chip with 8/16/32-bit and SPI host interfaces. The device is pin compatible with Micrel's KSZ8841 and KSZ8842 product families.

The KSZ8851 integrates a Fast Ethernet MAC/PHY with an 8/16/32-bit generic host processor interface and SPI interface. The device has 18KB of internal buffer memory shared between the RXQ and TXQ. The buffer memory on the receive queue is 12KB, while the buffer memory for the transmit queue is 6KB.

The KSZ8851 is designed with flexibility in mind. The device is designed using a low-power CMOS process which features programmable IO options of 1.8/2.5/3.3V.

The KSZ8851 supports cable diagnostics feature LinkMD® and Hewlett Packard (HP) Auto-MDIX. The LinkMD® feature determines the length of the cabling plant and also ascertains if there is an open or short condition in the cable. Hewlett Packard (HP) Auto-MDIX features eliminate the need to differentiate between straight or crossover cables.

The KSZ8851 is designed to be fully compliant with the IEEE 802.3 standards. It is also available in industrial grade version.

Flexible 8/16/32-bit generic host processor interface or SPI interface

KSZ8851MQL is pin compatible with existing KSZ8841MQL and KSZ8842MQL family

Best of class Performance:
80Mbps or higher

Fast and simple Host Read or Write access cycle at 50 nS to any I/O registers and TX(6KB)/RX(12KB) FIFO Buffers with slave DMA operation
Enables 4x HD video streaming @Home

Supports TCP/UDP/ICMP/IPv4/IPv6 checksum generation and checking

Low power consumption with enhanced power management

Low power CMOS process with programmable IO options (1.8v/2.5v/3.3v)
Automatically wake-up from low power state to normal power state or go-sleep from normal power state to low power state, depending on the presence of carrier (signal energy)

Industrial Temperature support

Reference Design With TI (OMAP), ADI, And Freescale Processors

Datasheet

Video Distribution Systems

High-end Cable, Satellite,
and IP set-top boxes

Voice over IP (VoIP)

Video over IP

Analog Telephone Adapters (ATA)

Industrial Control in Latency
Critical Applications

Motion Control

Security and Surveillance Cameras

Digi-Key P/N	Micrel P/N	Package	Interface Type	Description
576-3254-ND 576-3293-ND	KSZ8851 SNL KSZ8851 SNL-EVAL	32-Pin MLF (QFN per JDEC) (5mm x 5mm)	10/100BT with SPI Interface (4 wires interface)	SNLI: S for SPI, N for QFN, L for LDO included and I for Industrial temperature SPI: Serial Peripheral Interface
576-3252-ND 576-3292-ND	KSZ8851-16 MLL KSZ8851-16 MLL-EVAL	48-Pin LQFP (7mm x 7mm)	10/100BT with 8 or 16-bit Non-PCI Interface (Shared Data bus)	MLLI: M for Managed, L for LQFP, L for LDO included and I for Industrial temperature (8 or 16-bit Interface only)
576-3253-ND	KSZ8851-16 MQL	128-Pin PQFP (14mm x 20mm)	10/100BT with 8 or 16-bit Non-PCI Interface (Parallel Data & Addr)	MQLI: M for Managed, Q for PQFP, L for LDO included and I for Industrial temperature (8 or 16-bit Interface only)