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SN54LS373 Fiches technique(PDF) 3 Page - Motorola, Inc |
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SN54LS373 Fiches technique(HTML) 3 Page - Motorola, Inc |
3 / 7 page 5-523 FAST AND LS TTL DATA SN54/74LS373 • SN54/74LS374 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 3.4 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VOH Output HIGH Voltage 74 2.4 3.1 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 = 2.7 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) – 30 – 130 mA VCC = MAX ICC Power Supply Current 40 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, VCC = 5.0 V) Symbol Parameter Limits Unit Test Conditions Symbol Parameter LS373 LS374 Unit Test Conditions Symbol Parameter Min Typ Max Min Typ Max Unit Test Conditions fMAX Maximum Clock Frequency 35 50 MHz CL = 45 pF, RL = 667 Ω tPLH tPHL Propagation Delay, Data to Output 12 12 18 18 ns CL = 45 pF, RL = 667 Ω tPLH tPHL Clock or Enable to Output 20 18 30 30 15 19 28 28 ns CL = 45 pF, RL = 667 Ω tPZH tPZL Output Enable Time 15 25 28 36 20 21 28 28 ns tPHZ tPLZ Output Disable Time 12 15 20 25 12 15 20 25 ns CL = 5.0 pF AC SETUP REQUIREMENTS (TA = 25°C, VCC = 5.0 V) Symbol Parameter Limits Unit Symbol Parameter LS373 LS374 Unit Symbol Parameter Min Max Min Max Unit tW Clock Pulse Width 15 15 ns ts Setup Time 5.0 20 ns th Hold Time 20 0 ns DEFINITION OF TERMS SETUP TIME (ts) — is defined as the minimum time required for the correct logic level to be present at the logic input prior to LE transition from HIGH-to-LOW in order to be recognized and transferred to the outputs. HOLD TIME (th) — is defined as the minimum time following the LE transition from HIGH-to-LOW that the logic level must be maintained at the input in order to ensure continued recognition. |
Numéro de pièce similaire - SN54LS373 |
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Description similaire - SN54LS373 |
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