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3 / 13 page MC74HCT4851A http://onsemi.com 3 MAXIMUM RATINGS Symbol Parameter Value Unit VCC Positive DC Supply Voltage (Referenced to GND) –0.5 to + 7.0 V Vin DC Input Voltage (Any Pin) (Referenced to GND) –0.5 to VCC + 0.5 V I DC Current, Into or Out of Any Pin $25 mA PD Power Dissipation in Still Air, Plastic DIP† SOIC Package† TSSOP Package† 750 500 450 mW Tstg Storage Temperature Range –65 to + 150 °C TL Lead Temperature, 1 mm from Case for 10 Seconds Plastic DIP, SOIC or TSSOP Package 260 °C 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. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit VCC Positive DC Supply Voltage (Referenced to GND) 2.0 6.0 V Vin DC Input Voltage (Any Pin) (Referenced to GND) GND VCC V VIO* Static or Dynamic Voltage Across Switch 0.0 1.2 V TA Operating Temperature Range, All Package Types – 55 + 125 °C tr, tf Input Rise/Fall Time VCC = 2.0 V (Channel Select or Enable Inputs) VCC = 4.5 V VCC = 6.0 V 0 0 0 1000 500 400 ns *For voltage drops across switch greater than 1.2 V (switch on), excessive VCC current may be drawn; i.e., the current out of the switch may contain both VCC and switch input components. The reliability of the device will be unaffected unless the Maximum Ratings are exceeded. DC CHARACTERISTICS — Digital Section (Voltages Referenced to GND) VEE = GND, Except Where Noted Symbol Parameter Condition VCC V Guaranteed Limit Unit −55 to 25°C ≤85°C ≤125°C VIH Minimum High−Level Input Voltage, Channel−Select or Enable Inputs Ron = Per Spec 4.5 to 5.5 2.0 2.0 2.0 V VIL Maximum Low−Level Input Voltage, Channel−Select or Enable Inputs Ron = Per Spec 4.5 to 5.5 0.8 0.8 0.8 V Iin Maximum Input Leakage Current on Digital Pins (Enable/A/B/C) Vin = VCC or GND 5.5 ± 0.1 ± 1.0 ± 1.0 mA ICC Maximum Quiescent Supply Current (per Package) Vin(digital) = VCC or GND Vin(analog) = GND 5.5 2.0 20 40 mA 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 cir- cuit. For proper operation, Vin and Vout should be constrained to the range GND v (Vin or Vout) v VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. |
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