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KSZ8851
DATA SHEET
(04/17/2017)

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KSZ8851

In Production

For product comparison, please consider: LAN9250, ENC28J60, ENC624J600, ENC424J600
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The KSZ8851 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 KSZ8851 is for applications requiring cost-effective, high-throughput Ethernet connectivity in traditional embedded systems with MCUs or MPUs.

KSZ8851SNL/SNLI: SPI interface, 32-pin package

KSZ8851-16MLL: 8-/16-bit host bus, 48-pin package

KSZ8851-16/32MQL: 16-/32-bit host bus, 48-pin package (-16MQL) or 128-pin package (-32MQL) 

The KSZ8851 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 KSZ8851 is designed to be compliant with the appropriate IEEE 802.3u standards.

An industrial temperature-grade version of the KSZ8851 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 KSZ8851 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 KSZ8851 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 KSZ8851 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

        • Integrated MAC and PHY Ethernet Controller compliant with IEEE 802.3/802.3u standards
        • Designed for high performance and high throughput applications
        • Supports 10BASE-T/100BASE-TX
        • Supports IEEE 802.3x full-duplex flow control and half-duplex back pressure collision flow control
        • Supports DMA-slave burst data read and write transfers
        • Supports IP Header (IPv4)/TCP/UDP/ICMP checksum generation and checking
        • Supports IPv6 TCP/UDP/ICMP checksum generation and checking
        • Automatic 32-bit CRC generation and checking
        • Simple SRAM-like host interface easily connects to most common embedded MCUs.
        • Supports multiple data frames for transmit and receive without address bus and byte-enable signals
        • Supports both Big- and Little-Endian processors
        • Larger internal memory with 12K Bytes for RX FIFO and 6K Bytes for TX FIFO. Programmable low, high and overrun watermark for flow control in RX FIFO
        • Shared data bus for Data, Address and Byte Enable
        • Efficient architecture design with configurable host interrupt schemes to minimize host CPU overhead and utilization
        • Powerful and flexible address filtering scheme
        • Optional to use external serial EEPROM configuration for MAC address
        • Single 25MHz reference clock for both PHY and MAC
        • HBM ESD Rating 6kV
        Power Modes, Power Supplies, and Packaging
        • Single 3.3V power supply with options for 1.8V, 2.5V and 3.3V VDD I/O
        • Built-in integrated 3.3V or 2.5V to 1.8V low noise regulator (LDO) for core and analog blocks
        • Enhanced power management feature with energy detect mode and soft power-down mode to ensure low-power dissipation during device idle periods Comprehensive LED indicator support for link, activity and 10/100 speed (2 LEDs) - User programmable
        • Low-power CMOS design
        • Commercial Temperature Range: 0°C to +70°C
        • Industrial Temperature Range: -40°C to +85°C
        • Flexible package options available in 32-pin (5mm x 5mm) QFN KSZ8851SNL/SNLI, 48-pin (7mm x 7mm) LQFP KSZ8851-16MLL or 128-pin PQFP KSZ8851-16/32MQL
    Parameter Name
    Value
    Description
    10/100 Ethernet Controller w/Generic 8/16/32-bit or SPI Interface
    Ethernet Bandwidth
    10/100Mbps
    MAC
    Yes
    PHY
    Yes
    TX/RX RAM Buffer(Bytes)
    12KB(RX) 6KB(TX)
    Interrupt Pin
    1
    LEDs
    2
    Op. Voltage (V)
    3.3
    # Ethernet Ports
    1
    Temp. Range Min. (°C)
    -40
    Temp. Range Max. (°C)
    85
    Checksum Offload
    yes
    Interface
    8-/16-/32-bit or SPI
    Buffer size Rx (KB)
    12
    Buffer size Tx (KB)
    6
    Supply voltage (V)
    3.3
    Internal LDO
    Yes
    Vdd I/O (V)
    1.8/2.5/3.3
    LinkMD Cable Diag
    Yes
    Temp Range
    -40 to 85
    ESD Rating (KV)
    6
    WOL
    Yes
    Largets Pkt-Size Bytes
    1916
    IPV6
    Yes
    Flow Ctrl
    Yes
    Documentation
    Data Sheets
    04/17/2017
    1053KB
    Data Sheets
    02/14/2017
    1158KB
    Data Sheets
    03/27/2017
    1096KB
      Errata
     
     
     
     
    Errata
    06/15/2017
    267KB
      Application Notes
     
     
     
    AppNote
    01/11/2017
    702KB
    AppNote
    10/02/2015
    85KB
    AppNote
    10/01/2015
    149KB
    AppNote
    10/01/2015
    108KB
    AppNote
    10/01/2015
    104KB
    AppNote
    10/01/2015
    149KB
    AppNote
    10/01/2015
    122KB
    AppNote
    09/30/2015
    103KB
    AppNote
    10/02/2015
    132KB
    AppNote
    10/02/2015
    420KB
    AppNote
    11/12/2015
    171KB
      Brochures
     
     
     
     
    Brochures
    07/27/2017
    3196KB
      Design Guides
     
     
     
    Design Guides
    05/09/2016
    248KB
    Design Guides
    02/19/2016
    70KB
    Design Guides
    02/19/2016
    1039KB
    Design Guides
    02/19/2016
    1799KB
    Design Guides
    02/19/2016
    1716KB
    Design Guides
    05/09/2016
    778KB
    Design Guides
    02/19/2016
    1655KB
    Design Guides
    02/19/2016
    1605KB
      Software Library
     
     
     
     
    SoftwareLibrary
    02/01/2016
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    KSZ8851-16MLL
    48
    LQFP
    0C to +70C
    TRAY
    3.88
    3.23
    2.94
    2.72
    2.58
    KSZ8851-16MLLI
    48
    LQFP
    -40C to +85C
    TRAY
    4.38
    3.65
    3.32
    3.07
    2.91
    KSZ8851-16MLLI-TR
    48
    LQFP
    -40C to +85C
    T/R
    4.38
    3.65
    3.32
    3.07
    2.91
     
    KSZ8851-16MLL-TR
    48
    LQFP
    0C to +70C
    T/R
    3.88
    3.23
    2.94
    2.72
    2.58
     
    KSZ8851-16MQL
    128
    PQFP
    0C to +70C
    TRAY
    4.27
    3.56
    3.24
    2.99
    2.84
    KSZ8851-16MQLI
    128
    PQFP
    -40C to +85C
    TRAY
    4.83
    4.02
    3.66
    3.38
    3.21
    KSZ8851-32MQL
    128
    PQFP
    0C to +70C
    TRAY
    6.21
    5.17
    4.71
    4.35
    4.12
    KSZ8851-32MQLI
    128
    PQFP
    -40C to +85C
    TRAY
    9.21
    7.67
    6.98
    6.45
    6.11
    KSZ8851SNL
    32
    VQFN
    0C to +70C
    TRAY
    3.65
    3.04
    2.76
    2.55
    2.42
    KSZ8851SNLI
    32
    VQFN
    -40C to +85C
    TRAY
    4.19
    3.49
    3.18
    2.93
    2.78
    KSZ8851SNLI-TR
    32
    VQFN
    -40C to +85C
    T/R
    4.19
    3.49
    3.18
    2.93
    2.78
     
    KSZ8851SNL-TR
    32
    VQFN
    0C to +70C
    T/R
    3.65
    3.04
    2.76
    2.55
    2.42
     

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • Ethernet1 XPRO ( ATETHERNET1-XPRO )

      Ethernet1

      Ethernet1 Xplained Pro is an extension board in the Xplained Pro evaluation platform. The board enables the user to experiment with Ethernet network connectivity applications.

    • KSZ8851-16MLL EVAL BOARD ( KSZ8851-16MLL-EVAL )

      KSZ8851-16MLL

      The KSZ8851-16MLL-Eval Evaluation Board is intended to provide a convenient and fast way to evaluate or demonstrate the functionality and performance of this new Single-Port Ethernet Controller KSZ8851-16MLL device from Micrel. The KSZ8851-16MLL comes with a 48-pin, lead-free LQFP (7mm x 7mm) package and provides an ideal solution for applications requiring high-performance from single-port...

    • KSZ8851SNL EVAL BOARD ( KSZ8851SNL-EVAL )

      KSZ8851SNL

      The KSZ8851SNL-Eval Evaluation Board is intended to provide a convenient and fast way to evaluate or demonstrate the functionality and performance of this new Single-Port Ethernet Controller KSZ8851SNL device from Micrel. The KSZ8851SNL comes with a 32-pin, lead-free QFN (5mm x 5mm) package and provides an ideal solution for applications requiring Serial Peripheral Interface (SPI) between...

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    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    KSZ8851-16MLLU
    0.155500
    0.694000
    48
    LQFP
    7x7x1.4mm
    Matte Tin
    e3
    KSZ8851-16MLL
    0.155500
    0.694000
    48
    LQFP
    7x7x1.4mm
    Matte Tin
    e3
    KSZ8851-16MLL-TR
    0.155500
    0.768000
    48
    LQFP
    7x7x1.4mm
    Matte Tin
    e3
    KSZ8851-16MLLI-TR
    0.155500
    0.768000
    48
    LQFP
    7x7x1.4mm
    Matte Tin
    e3
    KSZ8851-16MLLJ
    0.155500
    0.694000
    48
    LQFP
    7x7x1.4mm
    Matte Tin
    e3
    KSZ8851-16MLLU-TR
    0.155500
    0.768000
    48
    LQFP
    7x7x1.4mm
    Matte Tin
    e3
    KSZ8851-16MLLI
    0.155500
    0.694000
    48
    LQFP
    7x7x1.4mm
    Matte Tin
    e3
    KSZ8851-16MQL
    1.761500
    4.015152
    128
    PQFP
    14x20x2.72mm
    Matte Tin
    e3
    KSZ8851-32MQLI
    1.761500
    4.015152
    128
    PQFP
    14x20x2.72mm
    Matte Tin
    e3
    KSZ8851-16MQLI
    1.761500
    4.015152
    128
    PQFP
    14x20x2.72mm
    Matte Tin
    e3
    KSZ8851-32MQL
    1.761500
    4.015152
    128
    PQFP
    14x20x2.72mm
    Matte Tin
    e3
    KSZ8851SNL-TR
    0.064100
    0.214000
    32
    VQFN
    5x5x0.9mm
    NiPdAu
    e4
    KSZ8851SNLI
    0.064100
    0.530612
    32
    VQFN
    5x5x0.9mm
    NiPdAu
    e4
    KSZ8851SNLI-TR
    0.064100
    0.214000
    32
    VQFN
    5x5x0.9mm
    NiPdAu
    e4
    KSZ8851SNL
    0.064100
    0.530612
    32
    VQFN
    5x5x0.9mm
    NiPdAu
    e4
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.