Am79C901A

Storage Temperature . . . . . . . . . 65°C to +150°C
Ambient Temperature (C). . . . . .  . . -65°C to +70°C
Ambient Temperature (I) . . . . . .  . . -65°C to +85°C
Supply Voltage
with respect to VSS . . . . . . . . . . . . . 0.3 V to 3.63 V
Stresses above those listed under Absolute Maximum Ratings may cause permanent device failure. Functionality at or above these limits is not implied. Exposure to Absolute Maximum Ratings for extended periods may affect device reliability.

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.