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SN74LS641N Datasheet(PDF) 3 Page - Motorola, Inc |
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SN74LS641N Datasheet(HTML) 3 Page - Motorola, Inc |
3 / 3 page 5-3 FAST AND LS TTL DATA SN54/74LS641 • SN54/74LS642 GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage 54 74 4.5 4.75 5.0 5.0 5.5 5.25 V TA Operating Ambient Temperature Range 54 74 – 55 0 25 25 125 70 °C VOH Output Current — High 54, 74 5.5 V IOL Output Current — Low 54 74 12 24 mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Symbol Parameter Limits Unit Test Conditions Symbol Parameter Min Typ Max Unit Test Conditions VIH Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage for All Inputs VIL Input LOW Voltage 54 0.5 V Guaranteed Input LOW Voltage for All Inputs VIL Input LOW Voltage 74 0.6 V Guaranteed Input LOW Voltage for All Inputs VIK Input Clamp Diode Voltage – 0.65 – 1.5 V VCC = MIN, IIN = – 18 mA IOH Output HIGH Current 54, 74 100 µA VCC = MIN, VOH = MAX VOL Output LOW Voltage 54, 74 0.25 0.4 V IOL = 12 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table VOL Output LOW Voltage 74 0.35 0.5 V IOL = 24 mA VIN = VIL or VIH per Truth Table IIH Input HIGH Current 20 µA VCC = MAX, VIN = 2.7 V IIH Input HIGH Current –0.1 mA VCC = MAX, VIN = 7.0 V IIL Input LOW Current – 0.4 mA VCC = MAX, VIN = 0.4 V ICC Power Supply Current Total, Output HIGH 70 mA VCC = MAX ICC Total, Output LOW 90 mA VCC = MAX Total at HIGH Z 95 AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V) Symbol Parameter Limits Unit Test Conditions Symbol Parameter LS641 LS642 Unit Test Conditions Symbol Parameter Min Typ Max Min Typ Max Unit Test Conditions tPLH tPHL Propagation Delay, A to B 17 16 25 25 19 14 25 25 ns CL = 45 pF, RL = 667 Ω tPLH tPHL Propagation Delay, B to A 17 16 25 25 19 14 25 25 ns CL = 45 pF, RL = 667 Ω tPLH tPHL Propagation Delay, G, DIR to A 23 34 40 50 26 43 40 60 ns CL = 45 pF, RL = 667 Ω tPLH tPHL Propagation Delay, G, DIR to B 25 37 40 50 28 39 40 60 ns |
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