DP83840A Datasheet | National Semiconductor

DP83840A 10/100 Mb/s Ethernet Physical Layer March 1997 DP83840A 10/100 Mb/s Ethernet Physical Layer General Description The DP83840A is a Physical Layer device for Ethernet 10BASE-T and 100BASE-X using category 5 Unshielded, Type 1 Shielded and Fiber Optic cables. This VLSI device is designed for easy implementation of 10/100 Mb/s Ethernet LANs. It interfaces to the PMD sublayer through National Semiconductor's DP83223 Twisted Pair Transceiver, and to the MAC layer through a Media Independent Interface (MII), ensuring interoperability between products from different vendors. The DP83840A is designed with National Semiconductor's BiCMOS process. Its system architecture is based on the...