DM9161AEP - ethernet controller; 10Base-T/100Base-TX LQFP48

DM9161AEP Product Brief 

The DM9161A is a physical layer, single-chip, and low power transceiver for
100BASE-TX and 10BASE-T operations. On the media side, it provides a direct
interface either to Unshielded Twisted Pair Category 5 Cable (UTP5) for
100BASE-TX Fast Ethernet, or UTP5/UTP3 Cable for 10BASE-T Ethernet. Through
the Media Independent Interface (MII), the DM9161A connects to the Medium
Access Control (MAC) layer, ensuring a high inter operability from different vendors.
TheDM9161A uses a low power and high performance advanced CMOS process. It
contains the entire physical layer functions of 100BASE-TX as defined by
IEEE802.3u, including the Physical Coding Sublayer (PCS), Physical Medium
Attachment (PMA), Twisted Pair Physical Medium Dependent Sublayer (TP-PMD),
10BASE-TX Encoder/Decoder (ENC/DEC), and Twisted Pair Media Access Unit
(TPMAU). The DM9161A provides a b support for the auto-negotiation function,
utilizing automatic media speed and protocol selection. Furthermore, due to the
built-in wave shaping filter, the DM9161A needs no external filter to transport signals
to the media in 100BASE-TXBASE-TX or 10BASE-TBASE-T Ethernet operation.