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KSZ8999

9-Port 10/100 Unmanaged Ethernet Switch with Fiber Support

Status: In Production

Features:

  • 9 port (8+1) 10/100 integrated switch with eight physical layer transceivers and one MII/SNI interface
  • Advanced Ethernet Switch with internal frame buffer
  • 128K Byte of SRAM on chip for frame buffering
  • 2.0Gbps high performance memory bandwidth
  • Wire speed reception and transmission
  • Integrated address look-up engine, supports 1K absolute MAC addresses
  • Automatic address learning, address aging and address migration
  • Advanced Switch Features
  • Supports 802.1p priority and port based priority
  • Supports port based VLAN
  • Supports 1536 byte frame for VLAN tag
  • Supports DiffServ priority, 802.1p based priority or port based priority of broadcast storm protection
  • Proven transceiver technology for UTP and fiber operation
  • 10BaseT, 100BaseTX and 100BaseFX modes of operation
  • Supports for UTP or fiber on all 8-ports
  • Indicators for link, activity, full/half-duplex and speed
  • Hardware based 10/100, full/half, flow control and auto-negotiation
  • Individual port forced modes (full duplex, 100BaseTX) when auto-negotiation is disabled
  • Full-duplex IEEE 802.3x flow control
  • Half-duplex back pressure flow control
  • Supports MDI/MDI-X auto crossover
  • External MAC interface (MII or 7-wire) for router applications
  • Unmanaged operation via strapping or EEPROM at system reset time (see Reset Reference Circuit section)
  • Comprehensive LED support
  • Single 2.0V power supply with options for 2.5V and 3.3V I/O
  • 900 mA (1.80W) including physical transmit drivers
  • Supports both commercial and industrial temperature
  • Commercial temperature range: 0°C to +70°C (KS8999)
  • Industrial temperature range: –40°C to +85°C (KS8999I)
  • Supports lead free products:
  • Commercial temperature range: 0°C to +70°C (KSZ8999)
  • Industrial temperature range: –40°C to +85°C (KSZ8999I)
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The KS8999 contains eight 10/100 physical layer transceivers, nine MAC (Media Access Control) units with an integrated layer 2 switch.

The device runs in two modes. The first mode is an eight port integrated switch and the second is as a nine port switch with the ninth port available through an MII (Media Independent Interface).

Useful configurations include a stand alone eight port switch as well as a eight port switch with a routing element connected to the extra MII port. The additional port is also useful for a public network interfacing. The KS8999 is designed to reside in an unmanaged design not requiring processor intervention. This is achieved through I/O strapping or EEPROM programming at system reset time.

On the media side, the KS8999 supports 10BaseT, 100BaseTX and 100BaseFX as specified by the IEEE 802.3 committee. Physical signal transmission and reception are enhanced through use of analog circuitry that makes the design more efficient and allows for lower power consumption and smaller chip die size.

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.

Additional Features
    • 9 port (8+1) 10/100 integrated switch with eight physical layer transceivers and one MII/SNI interface
    • Advanced Ethernet Switch with internal frame buffer
    • 128K Byte of SRAM on chip for frame buffering
    • 2.0Gbps high performance memory bandwidth
    • Wire speed reception and transmission
    • Integrated address look-up engine, supports 1K absolute MAC addresses
    • Automatic address learning, address aging and address migration
    • Advanced Switch Features
    • Supports 802.1p priority and port based priority
    • Supports port based VLAN
    • Supports 1536 byte frame for VLAN tag
    • Supports DiffServ priority, 802.1p based priority or port based priority of broadcast storm protection
    • Proven transceiver technology for UTP and fiber operation
    • 10BaseT, 100BaseTX and 100BaseFX modes of operation
    • Supports for UTP or fiber on all 8-ports
    • Indicators for link, activity, full/half-duplex and speed
    • Hardware based 10/100, full/half, flow control and auto-negotiation
    • Individual port forced modes (full duplex, 100BaseTX) when auto-negotiation is disabled
    • Full-duplex IEEE 802.3x flow control
    • Half-duplex back pressure flow control
    • Supports MDI/MDI-X auto crossover
    • External MAC interface (MII or 7-wire) for router applications
    • Unmanaged operation via strapping or EEPROM at system reset time (see Reset Reference Circuit section)
    • Comprehensive LED support
    • Single 2.0V power supply with options for 2.5V and 3.3V I/O
    • 900 mA (1.80W) including physical transmit drivers
    • Supports both commercial and industrial temperature
    • Commercial temperature range: 0°C to +70°C (KS8999)
    • Industrial temperature range: –40°C to +85°C (KS8999I)
    • Supports lead free products:
    • Commercial temperature range: 0°C to +70°C (KSZ8999)
    • Industrial temperature range: –40°C to +85°C (KSZ8999I)
Parametrics
Name
Value
Description
9-Port 10/100 Ethernet Switch
Ethernet Bandwidth
10/100Mbps
MAC
9
PHY
8
LEDs
36
Op. Voltage (V)
3.3
Interface
MII
Temp. Range Min. (°C)
-40
Temp. Range Max. (°C)
85
# of Ports
9
Copper Support
10/100 (8)
Fiber Support
100FX (8)
MII
Yes
SNI
Yes
Supply Voltage (V)
3.3
Vdd I/O (V)
3.3
ESD Rating (KV)
n/a
Smart Power Adjust
n/a
IPV6
Yes
# of VLAN
9
Flow Ctrl
Yes

Documents

Jump to:

Data Sheet

02/19/2016
438KB

Design Guides

02/19/2016
2126KB

IBIS

05/10/2017
134KB

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
KSZ8999 EVAL BOARD
KSZ8999 EVAL BOARD ( KSZ8999-EVAL )

The KS8999 demo board is designed to evaluate the performance of 9-port integration switch with PHY and frame buffer. KS8999 is configured as standalone switch with 8 ports operating in 10Mbit/s or 100Mbit/s. All of the 8 ports are set up as auto negotiation as default. The KS8999 demo board provides an industry standard MII (media independent Interface) to interface to external Processors for...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
KSZ8999
5.407700
10.916667
208
PQFP
28x28x3.32mm
Matte Tin
e3
KSZ8999I
5.407700
10.916667
208
PQFP
28x28x3.32mm
Matte Tin
e3
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.

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