[Altima Communications Inc.]

GENERAL DESCRIPTION

The AC104QF is a highly integrated, 3.3V, low power, four port, 10Base-T/100Base-TX/FX, Ethernet transceiver implemented in 0.35mm CMOS technology. Multiple modes of operation including normal operation, test mode and power saving mode are available through either hardware or software control.

FEATURES

• 4 RMII

• RMII 5Volt tolerant and 2.5Volt capable

• 4 10/100 TX or 3 10/100 TX and 1 100 FX

• Full Duplex or Half Duplex

• FEFI on 100FX

• Very small package

• 100PQFP

• Very low power – TYP < 280mW (/ port)

• Cable Detect mode – TYP < 40mW (/ port)

• Power Down mo de – TYP < 3.3mW (/ port)

• Selectable TX drivers for 1:1 or 1.25:1 transformers for additional power reduction

• 3.3Volt .35micron CMOS

• Fully compliant with

• IEEE 802.3 / 802.3u

• RMII

• UNH test labs

• Baseline Wander Compensation

• Multi-Function LED outputs

• Cable length indicator

• Reverse polarity detection and correction with Register Bit indication – Automatic or Forced

• 8 programmable interrupts

• Diagnostic registers