DM9162: 10/100 Mbit Fast Ethernet Physical Layer TX/FX Single Chip Transceiver

• QFN-32 & LQFP-48 packages
• 10/100Base-TX + 100FX
• current consumption 90mA + 40mA (transformer)
• 50MHz RMII clock output
• Auto MDI-X
• 0.162 µm Process
• LED Status (Link/Activity, Speed, Full Duplex/Collision)
• Full-Duplex or Half-Duplex
• compatible to IEEE802.3u
• MII and Reverse MII
• SPI EEPROM Interface
• integrated 3.3V to 1.8V regulator
• Temperature Range: 0°C to 70°C and -40° to 85°C

The DM9162 is the replacement for DM9161C. In the LQFP-48 package it is backward compatible to DM9161A and DM9161C.
Its main advantages are:
- 50MHz clock out at RMII applications which can save BOM cost and design efforts at the system designer
- cost effective 0,162µ process
As we know, the trend of CPU/processor is toward small package and low pin count in which RMII interface will be applied. Besides 48-pin LQFP in DM9162 package, 32-pin QFN or 24-pin QFN (RMII only) is available.
It contains the entire physical layer functions of 100BASE-TX as defined by IEEE802.3u:

• Physical Coding Sublayer (PCS)
• Physical Medium Attachement (PMA)
• Twisted Pair Physical Medium Dependent Sublayer (TP-PMD)
• 10Base-TX Encoder/Decoder (ENC/DEC) 
• Twisted Pair Media Access Unit (TPMAU)

Furthermore, due to the built-in wave shaping filter, the DM9162 needs no external filter to transport signals to the media in 100BASE-TX or 10BASE-T Ethernet operation.