KSZ8999I 2V-2.3V Ethernet ICs 9-Port 10/100 Switch w/ Transceivers & Frame Buffers chip

Integrated 9-Port 10/100 Switch with PHY and Frame Buffer

Features
• Nine 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
- 2.0 Gbps High Performance Memory Bandwidth
- Wire Speed Reception and Transmission
- Integrated Address Lookup Engine, Supports 1K Absolute MAC Addresses
- Automatic Addressing 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 or Broadcast Storm Protection
• Proven Transceiver Technology for UTP and Fiber Operation
- 10BASE-T, 100BASE-TX, and 100BASE-FX Modes of Operation
- Supports for UTP or Fiber on All Eight 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, 100BASE-TX) when Auto
-Negotiation is Disabled - Full-Duplex IEEE 802.3x Flow Control
- Half-Duplex Back Pressure Flow Contro
• 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 (min.), 2.1V (typ.) Power Supply with Options for 2.5V and 3.3V I/O
• 900 mA (1.80W) Including Physical Transmit Drivers
• Supports Commercial and Industrial Temperature Ranges
- Commercial Temperature Range: 0°C to +70°C (KSZ8999)
- Industrial Temperature Range: –40°C to +85°C (KSZ8999I)
• Available in a 208-Lead PQFP Package

Description

The KSZ8999 contains eight 10/100 physical layer transceivers, nine Media Access Control (MAC) 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 a Media Independent Interface (MII). Useful configurations include a stand alone eight-port switch as well as an 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 KSZ8999 is designed to reside in an unmanaged design that does not require processor intervention.

This is achieved through I/O strapping or EEPROM programming at system reset time. On the media side, the KSZ8999 supports 10BASE-T, 100BASE-TX, and 100BASE-FX, as specified by the IEEE 802.3 committee. Physical signal transmission and reception are enhanced through the use of analog circuitry that makes the design more efficient and allows for lower power consumption and smaller chip die size.

Specifications

Transportations & Payments

Frequently Asked Questions

Shipping:

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