4449UB

      The 4449UB is designed as CMOS HEX inverter which consists of six CMOS inverter circuits.It is pin-compatible with the 4009UB, 4049UB, and equivalent device types.In systems which do not require the high output current and level-shifting capabilities of the buffers, 4449UB can be substituted directly with no change in board layout.The 4449UB is particularly useful for quasilinear circuits, such as oscillators and multivibrators.
      4449UB has three features.The first one is that it would be all inputs fully diode protected.The second one is that it would be pin compatibal with 4009B, 4049B.The third one is that 4449UB would be fully "B"-series compatible.That are all the features.
      Some recommended operating conditions and absolute maximum raings of 4449UB have been concluded into several points as follow.For maximum reliability its DC supply voltage would be from 3 to 15 Vdc.The operating temperature of it would be from -55 to +125°C for C and would be from -40 to +85°C for E.
      And there are also some electrical characteristics about 4449UB.For static characteristics it is about the quiescent device current with condition of Vin = Vss or Vdd and all valid input combinations.For Tlow, 4449UB would be max 0.05Adc for Vdd= 5Vdc and would be max 0.10Adc for Vdd= 10Vdc and would be max 0.20Vdc for Vdd= 15Vdc.For +25°C, 4449UB would be typ 0.0005Adc and max 0.05Adc for Vdd= 5Vdc and would be typ 0.001Adc and max 0.10Adc for Vdd= 10Vdc and would be typ 0.002Adc and max 0.20Vdc for Vdd= 15Vdc.For Thigh, 4449UB would be max 1.5Adc for Vdd= 5Vdc and would be max 3.0Adc for Vdd= 10Vdc and would be max 6.0Vdc for Vdd= 15Vdc.For its dynamic characteristics (Cl=50pF, Ta=25°C) its propagation delay time would be typ 60nS and max 120nS for Vdd= 5Vdc and typ 30ns and max 60ns for Vdd= 10Vdc and typ 25ns and max 50ns for Vdd= 15Vdc.And also 4449UB's output transition time would be typ 100nS and max 200nS for Vdd= 5Vdc and typ 50ns and max 100ns for Vdd= 10Vdc and typ 40ns and max 80ns for Vdd= 15Vdc.And so on.For more information please contact us.