MC74HC05A Hex Inverter with Open Drain Outputs The MC74HC05A contains six inverters with open drain outputs. The MC74HC05A is identical to the MC74HC04A, except for the open drain outputs. The outputs can be connected to other open drain MC74HC05A MAXIMUM RATINGS Symbol Parameter Value Unit V DC Supply Voltage (Referenced to GND) 0.5 to + 7.0 V CC V DC Input Voltage (Referenced to GND) 0.5 to V + 0.5 V in CC V DC Output Voltage (Referenced to GND) 0.5 to V + 0.5 V out CC I DC Input Current, per Pin 20 mA in I DC Output Current, per Pin 25 mA out I DC Supply Current, V and GND Pins 50 mA CC CC P Power Dissipation in Still Air, SOIC Package 500 mW D TSSOP Package 450 T Storage Temperature 65 to + 150 C stg T Lead Temperature, 1 mm from Case for 10 Seconds C L SOIC or TSSOP Package 260 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. *This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high impedance circuit. For proper operation, V and in V should be constrained to the range GND (V or V ) V . Unused inputs must always be tied to an appropriate logic voltage level out in out CC (e.g., either GND or V ). Unused outputs must be left open. CC Derating SOIC Package: 7 mW/ C from 65 to 125 C TSSOP Package: 6.1 mW/ C from 65 to 125 C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit V DC Supply Voltage (Referenced to GND) 2.0 6.0 V CC V , V DC Input Voltage, Output Voltage (Referenced to GND) 0 V V in out CC T Operating Temperature, All Package Types 55 + 125 C A t , t Input Rise and Fall Time V = 2.0 V 0 1000 ns r f CC (Figure 1) V = 4.5 V 0 500 CC V = 6.0 V 0 400 CC