Am79C901A

The Am79C901A HomePHY is a single-chip device that contains both a physical layer (PHY) for 1 Mbps data networking over existing residential telephone wiring based on the specification published by HomePNA and a physical layer for supporting the IEEE 802.3 standard for 10BASE-T. The HomePHY is targeted at embedded applications and has both GPSI and MII-compatible interfaces.

The integrated HomePNA transceiver is a physical layer device that enables data networking at speeds up to 1 Mbps over existing residential phone wiring regardless of topology and without disrupting telephone (POTS) service.

The integrated Ethernet transceiver is a physical layer device supporting the IEEE 802.3 standard for 10BASE-T. It provides all of the PHY layer functions required to support 10 Mbps data transfer speeds. A compliant IEEE 1149.1 JTAG test interface for board level testing is provided.

The Am79C901A PHY also provides on-chip LED drivers for collision, link integrity, speed, activity, and power output. The Am79C901A PHY is fabricated in an advanced low power 3.3 V CMOS process to provide low operating current for power sensitive applications. The Am79C901A PHY i s ava i l a bl e i n the commercial temperature range (0ºC to +70ºC) in 68-pin PLCC and 80-pin TQFP packages. The Am79C901A a l s o suppor ts t h e i ndustr i a l temperature range (-40ºC to +85ºC) in the 80-pin TQFP package.

The industrial temperature range is well suited to environments with enclosures with restricted air flow or outdoor equipment.