SN54LS40 MOTOROLA | Alldatasheet
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Technical content
GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage 54 4.5 4.75 5.0 5.0 5.5 5.25 V TA Operating Ambient T emperature Range 54 –55 125 IOH Output Current — High 54, 74 –1.2 mA IOL Output Current — Low 54 mA SN54/74LS40 DUAL 4-INPUT NAND BUFFER LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 632-08 N SUFFIX PLASTIC CASE 646-06
ORDERING INFORMATION
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Symbol Parameter Limits Unit Test ConditionsSymbol 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 0.7 V Guaranteed Input LOW Voltage for All InputsVIL Input LOW Voltage 74 0.8 V Guaranteed Input LOW Voltage for All Inputs VIK Input Clamp Diode Voltage –0.65 –1.5 V VCC = MIN, IIN = –18 mA VOH Output HIGH Voltage 54 2.5 3.5 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth TableVOH Output HIGH Voltage 74 2.7 3.5 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table 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 IOS Short Circuit Current (Note 1) –30 –130 mA VCC = MAX ICC Power Supply Current Total, Output HIGH 1.0 mA VCC = MAXICC Total, Output LOW 6.0 mA VCC = MAX Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25°C) Symbol Parameter Limits Unit Test ConditionsSymbol Parameter Min Typ Max Unit Test Conditions tPLH Turn-Off Delay, Input to Output 12 24 ns VCC = 5.0 V, RL = 667 Ω C L = 45 pFtPHL Turn-On Delay, Input to Output 12 24 ns VCC = 5.0 V, RL = 667 Ω C L = 45 pF