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SN54LS125J Datasheet(PDF) 2 Page - Motorola, Inc |
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SN54LS125J Datasheet(HTML) 2 Page - Motorola, Inc |
2 / 5 page 5-208 FAST AND LS TTL DATA SN54/74LS125A • SN54/74LS126A 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 0.7 V Guaranteed Input LOW Voltage for All Inputs VIL 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 2.4 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VOH Output HIGH Voltage 74 2.4 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 IOZH Output Off Current HIGH 20 µA VCC = MAX, VOUT = 2.4 V IOZL Output Off Current LOW – 20 µA VCC = MAX, VOUT = 0.4 V 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) – 40 –225 mA VCC = MAX ICC Power Supply Current LS125A 20 mA VCC = MAX VIN = 0 V, VE = 4.5 V ICC Power Supply Current LS126A 22 mA VCC = MAX VIN = 0 V, VE = 0 V 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 Conditions Symbol Parameter Min Typ Max Unit Test Conditions tPLH Propagation Delay, Data to Output LS125A 9.0 15 ns Figure 2 VCC = 5.0 V CL = 45 pF RL = 667 Ω tPLH Propagation Delay, Data to Output LS126A 9.0 15 ns Figure 2 VCC = 5.0 V CL = 45 pF RL = 667 Ω tPHL Propagation Delay, Data to Output LS125A 7.0 18 ns Figure 2 VCC = 5.0 V CL = 45 pF RL = 667 Ω tPHL LS126A 8.0 18 VCC = 5.0 V CL = 45 pF RL = 667 Ω tPZH Output Enable Time to HIGH Level LS125A 12 20 ns Figures 4, 5 CL = 45 pF RL = 667 Ω tPZH Output Enable Time to HIGH Level LS126A 16 25 ns Figures 4, 5 L = 667 Ω tPZL Output Enable Time to LOW Level LS125A 15 25 ns Figures 3, 5 tPZL Output Enable Time to LOW Level LS126A 21 35 ns Figures 3, 5 tPHZ Output Disable Time from HIGH Level LS125A 20 ns Figures 4, 5 VCC = 5.0 V CL = 5.0 pF RL = 667 Ω tPHZ Output Disable Time from HIGH Level LS126A 25 ns Figures 4, 5 VCC = 5.0 V CL = 5.0 pF RL = 667 Ω tPLZ Output Disable Time from LOW Level LS125A 20 ns FIgures 3, 5 CL = 5.0 pF RL = 667 Ω tPLZ Output Disable Time from LOW Level LS126A 25 ns FIgures 3, 5 L = 667 Ω |
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