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MICROCHIP

Microchip Technology Inc. (纳斯达克股市代号:MCHP)是全球领先的整合单片机、模拟器件、FPGA、联网器件及电源管理半导体器件的供应商。其简单易用的开发工具和丰富的产品组合让客户能够打造最佳设计,在降低风险的同时降低系统总成本,缩短上市时间。公司的解决方案已为工业、汽车、消费、航天和国防、通信以及计算市场中超过13万家客户提供服务。Microchip总部位于美国亚利桑那州Chandler市,提供出色的技术支持、可靠的产品和卓越的质量。
集成电路
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KSZ8999
型号:
KSZ8999
品牌:
微芯
产品分类:
集成电路
描述:
The KSZ8999 is an integrated 9-port 10/100 Switch with PHY and frame buffer. It 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 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 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. . 128kB 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 . Supports port based VLAN . Proven transceiver technology for UTP and fibre operation . Supports for UTP or fibre on all 8-ports . Indicators for link, activity, full/half-duplex and speed . Individual port forced modes . Half-duplex back pressure flow control . Unmanaged operation via strapping or EEPROM at system reset time . Comprehensive LED support
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