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DM74LS191M Datasheet(PDF) 4 Page - Fairchild Semiconductor |
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DM74LS191M Datasheet(HTML) 4 Page - Fairchild Semiconductor |
4 / 6 page www.fairchildsemi.com 4 Absolute Maximum Ratings(Note 1) Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions Note 2: TA = 25°C and VCC = 5V. DC Electrical Characteristics Note 3: All typicals are at VCC = 5V, TA = 25°C. Note 4: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 5: ICC is measured with all inputs grounded and all outputs open. Storage Temperature Range −65°C to +150°C Input Voltage 7V Operating Free Air Temp. Range 0 °C to +70°C Supply Voltage 7V Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.75 5 5.25 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 8 mA fCLK Clock Frequency (Note 2) 0 20 MHz tW Pulse Width Clock 25 ns (Note 2) Load 35 tSU Data Setup Time (Note 2) 20 ns tH Data Hold Time (Note 2) 0 ns tEN Enable Time to Clock (Note 2) 30 ns TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units (Note 3) VI Input Clamp Voltage VCC = Min, II = − 18 mA −1.5 V VOH HIGH Level Output VCC = Min, IOH = Max Mil 2.5 3.4 Voltage VIL = Max, VIH = Min Com 2.7 3.4 V VOL LOW Level Output VCC = Min, IOL = Max 0.25 0.4 Voltage VIL = Max, VIH = Min 0.35 0.5 V IOL = 4 mA, VCC = Min 0.25 0.4 II Input Current @ Max VCC = Max Enable 0.3 mA Input Voltage VI = 7V Others 0.1 IIH HIGH Level Input VCC = Max Enable 60 µA Current VI = 2.7V Others 20 IIL LOW Level Input VCC = Max Enable −1.08 mA Current VI = 0.4V Others −0.4 IOS Short Circuit VCC = Max Mil −20 −100 mA Output Current (Note 4) Com −20 −100 ICC Supply Current VCC = Max (Note 5) 20 35 mA |
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