Am2080

Am2080 is a kind of S-Bus interface circuit (SBC).The specific ISDN applications include ISDN terminals, ISDN network termination (central office and PABX applications) and PABX trunk lines to central office.There some distinctive characteristics as follows.First is full duplex 2B + D S/T-interface transceiver according to CCITT 1.430.The second is conversion of the frame structure between the S/T and IOMTM interfaces.Then is D-channel access control.Next is built-in wake-up unit for activation from power-down state.The fifth is adaptly switched receive thresholds.The sixth is control via IOM interface.The seventh is NT, TE and LT operating modes.The eighth is receive timing recovery according to selected operating mode.The ninth is switching of test loops.The last one is advanced CMOS technology.

What comes next is about the absolute maximum ratings of Am2080. The storage temperature is from -65 to +125.The DC voltage applied to any pin relative to VSS is from -0.4 to VCC±0.4 V.The power dissipation is 1 W.Then is about the operating ranges.The ambient temperature (TA) is from 0 to +70.The supply voltage (VCC) is +5 V±5%.

The following is about the DC characteristics over operating ranges of Am2080(TA=0 to 70,VCC=+5 V±5%,VSS=0 V).The minimum VIL (input low voltage) is -0.4 V and the maximum is 0.8 V.The minimum VIH (input high voltage) is 2.0 V and the maximum is VCC+0.4 V.The maximum VOL (output low voltage) is 0.45 V at IOL=2 mA.The maximum VOL1 (output low voltage (SDO only)) is 0.45 V at IOL=7 mA.The minimum VOH (output high voltage) is 2.4 V at IOH=-400 A.The minimum VOH1 (output high voltage) is VCC-0.5 V at IOH=-100 A.