Am2085

Am2085 is a kind of ISDN subscriber access controller (ISAC-S).There are some distinctive characteristics.First is S-Bus transceiver according to CCITT 1.430.The second is recovery of clock and frame.Then is frame alignment for trunk line termination.Next is access to Echo bit.The fifth is FIFO (2*64 byte) for efficient transfer of D-channel packets.The sixth is serial interfaces for various types of B-channel sources/destinations (SLD,SSI).The seventh is switching functions for B-channels.The eighth is watchdog timer.The ninth is switching of test loops.The tenth is 8-bit microprocessor interface.The eleventh is advanced CMOS technology.The last one is low power consumption.

What comes next is about the absolute maximum ratings of Am2085.The storage temperature is from -65 to +125.The ambient temperature under bias is from 0 to +70.The voltage on any pin with respect to ground is from -0.4 to V_DD+0.4 V.Then the folllowing is about the operating ranges.The ambient temperature (T_A) is from 0 to +70.The supply voltage (V_CC) is +5 V±5%.

The following is about the DC characteristics over operating ranges of Am2085 (T_A=0 to 70,V_DD=+5 V±5%,V_SSD=0 V,V_SSA=0 V) for all pins except SX1,SX2,SR1,SR2,RREF.The minimum V_IL (input low voltage) is -0.4 V and the maximum is 0.8 V.The minimum V_IH (input high voltage) is 2.0 V and the maximum is V_CC+0.4 V.The maximum V_OL (output low voltage) is 0.45 V at I_OL=2 mA.The minimum V_OH (output high voltage) is 2.4 V at I_OH=-400 A and the maximum is V_CC-0.5 V at I_OH=-100 A.The maximum I_LI (input leakage current) is +10 A at 0 VINDD to 0 V.The maximum I_LO (output leakage current) is +10 A at 0 VOUTDD to 0 V.