Am2075

The Am2075 is a kind of ISDN digital exchange controller.It is a serial HDLC data communication circuit with four independent channels.There are distinctive characteristics.First is 64-byte FIFO storage per channel and direction.The second is handling of basic HDLC functions.Then is single connection and quad connection modes.Next is IOMTM interface or PCM interface.The fifth is programmable time slots and channel data rates (up to 4 Mb/s).The sixth is different methodes of contention resolution.The seventh is address recognition.The eighth is advanced CMOS technology.The last one is power consumption less than 50 mW.

What comes next is about the absolute maximum ratings of Am2075.The ambient temperature under bias is from 0 to 70.The storage temperature is from -65 to 125.The voltage on any pin with respect to ground is from -0.4 to VDD+0.4 V.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 of Am2075 (ambient temperature under bias range;VDD=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=7 mA for SD3X-SD0X and IOL=2 mA for all other pins.The minimum VOH (output high voltage) is 2.4 V at IOH=-400 A and VDD-0.5 V at IOH=-100 A.The maximum ILI (input leakage current) is +10 A at 0 V