WS59820B

      WS59820B consists of two banks of registers,eight registers in each bank,each register 16 bits wide.A single bank can be configured sa an eight level pipleline or two pipelines,The architectural cinfiguration is determined by the instruction inputs (I0 and I1) for each register bank.Each of the eight registers in each bank is available at the multiplex output.The output register is determined by the control inputs (S0,S1 and S2) for each register bank.The multiplexed output is 16 bits wide and is enabled by the OEN signal.Each bank of registers has its own clock (CLK),instruction inputs (I0-1) and multiplex controls.
      Here you can get some information about the key features of WS59820B.First,it has two banks of 8*16 registers.Secondly,the contents of each register is available at output.Thirdly,it provides temporary address or data storage between two processors ports or buses.Fourthly,it adopts bi-directional buses interface which means dual 4-deep or 8-deep registers in each direction.Fifthly,it has seperate control for each register bank.Sixthly,it uses direct processor bus-to-bus interface.
      What comes next is about the absolute maximum ratings of WS59820B.The Commercial operating temperature is from 0 to +70 and the millitary is from -55 to +125.The storage temperature (No Bias) is from -65 to +150.The voltage on any pin with respect to GND is from -0.6 to +7 V.The latch up protection is  >200 mA.The ESD protection is >±2000 V.The following is about the DC characteristics.The minimum output high voltage (V_OH) is 2.4 V at V_CC=Min.,V_IN=V_IH or VIL and I_OH=-6.5 mA.The maximum output low voltage (V_OL) is 0.5 V at V_CC=Min.,V_IN=V_IH or V_IL and I_OL=20 mA Comm'I or 16 mA Mil.The minimum input high voltage (V_IH) is 2.0 V.The maximum input low voltage (V_IL) is 0.8 V.The minimum high impedance output current (I_OZ) is -50 A and the maximum is 50 A at V_CC=Max,VO=GND or V_CC.The minimum input load current (I_IX) is -10 A and the maximum is 10 A at V_CC=Max,VIN=GND or VC_C.The maximum power supply current (I_CC) is 12 mA at V_CC=Max and 0 to +70 (Comm'I) and 15 mA at at V_CC=Max and -55 to +125 (Mil).