YODA Banner

Communications Power Consumption


 
 
Subsystem Communications
Author Arnold Young & Sarah Brennan
Original Date 3/15/98
Last Review  3/15/98
Relevant Specs
  • P_ULN2003A = 950 mW (D package)
  • P_7408AND = ? mW
  • P_7404inverter = ? mW
  • P_555timer = 1000 mW (P Package, T_Ambient =< 25 deg C)
  • P_7474flip = ? mW
  • P_7486XOR = ? mW
    		•
    Specs Source
  • ULN2003A
  • 74LS08P
  • 74LS04N
  • NE555P
  • 74HCT74E
  • 74LS86AN
    		•
    Assumptions Made We will calculate the maximum power dissipation of the circuit according to the specs for each chip.
    Calculations/Method of 
    Measurement    		 
    P = P_ULN2003A + P_7408AND + P_7404inverter +
        2*P_555timer + P_7474flip + P_7486XOR
      = 950 mW + 2(1000 mW)
    P = 2950 mW
     
    Results P = 2950 mW (worst case)
    YODA | Return to Comm