82506TC

The 82506TC twisted pair medium attachment unit(TP MAU) is intended for local area network(LAN) designs that interface the IEEE 802.3-1988 AUI cable to the twisted pair wire(10BASE-T). It offers LAN works to twisted pair.The 82506TC complies with IEEE 802.3 AUI specifications and IEEE 802.3 10BASE-T specifications. The device incorporates the interface circuitry and both the AUI and twisted pair line drivers and receivers in a low-power CMOS package. The 82506TC TP MAU internally generates predistortion signals to eliminate line overcharge and improve jitter performance. It provides sselectable 10BASE-T features for simplified network management, including selectable polarity switching. In addition, the 82506TC TP MAU supports LED status indications for transmit, receive, jabber,collision and receive polarity. It is fabricated using CMOS-process technology and is available in 28-lead plastic DIP and 28-lead SOJ packages.It has many unique features: The first one is low-power CMOS technology. The second one is single5 V supply. The third one is selectable polarity switching.The forth one is resetable jabber function. The fifth one is on-chip line drivers and receivers. The sixth one is LED drivers for transmit,receive, collision,jabber and predistortion signal,etc.

There are some absolute maximum ratings about 82506TC.Ambient operating temperature(Ta) is 0 to 70.Storage temperature is -40 to +125.All output and supply voltages are -0.5 V to Vcc+5.0 V. All input voltage is -0.5 V to Vcc+5.0 V.DC characteristics: Input differential voltage(AUI)(VAID) is 0.300 V min and 1.3 V max. Input differential voltage(TP)(VTID) is 0.350 V min and 2.0 V max. XTAL input low voltage(VXTL) is 0.4 V max. XTAL input high voltage(VXCH) is 3.9 V min.Input low voltage(VIL) is 0.4 V max. Input high voltage(VIH) is 2.4 V min. Output differential voltage(AUI)(VAOD) is 0.600 V min and 1.2 V max. Output voltage low(TP)(VTOL) is 0.1 V max. Output voltage high(TP)(VTOH) is 4.9 V min.

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