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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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54ACT257 Fiches technique(PDF) 6 Page - Texas Instruments |
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54ACT257 Fiches technique(HTML) 6 Page - Texas Instruments |
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6 / 8 page  OBSOLETE 54AC257, 54ACT257 SNOS102B – JULY 1998 – REVISED APRIL 2013 www.ti.com AC ELECTRICAL CHARACTERISTICS 54AC VCC TA = −55°C Symbol Parameter Units (V)(1) to +125°C CL = 50 pF Propagation Delay In to Zn 3.3 1.0 11.0 tPLH ns 5.0 1.0 8.0 Propagation Delay In to Zn 3.3 1.0 11.0 tPHL ns 5.0 1.0 8.5 tPLH Propagation Delay S to Zn 3.3 1.0 14.5 ns 5.0 1.0 11.0 tPHL Propagation Delay S to Zn 3.3 1.0 14.5 ns 5.0 1.0 11.0 3.3 1.0 13.0 tPZH Output Enable Time ns 5.0 1.0 10.0 3.3 1.0 11.0 tPZL Output Enable Time ns 5.0 1.0 9.5 3.3 1.0 13.0 tPHZ Output Disable Time ns 5.0 1.0 11.0 3.3 1.0 10.5 tPLZ Output Disable Time ns 5.0 1.0 9.5 (1) Voltage Range 3.3 is 3.0V ±0.3V. Voltage Range 5.0 is 5.0V ±0.5V. AC ELECTRICAL CHARACTERISTICS 54ACT VCC TA = −55°C Symbol Parameter Units (V)(1) to +125°C CL = 50 pF Propagation Delay tPLH 5.0 1.0 8.0 ns In to Zn tPHL Propagation Delay 5.0 1.0 9.5 ns In to Zn tPLH Propagation Delay 5.0 1.0 11.0 ns S to Zn tPHL Propagation Delay 5.0 1.0 11.5 ns S to Zn tPZH Output Enable Time 5.0 1.0 9.5 ns tPZL Output Enable Time 5.0 1.0 9.5 ns tPHZ Output Disable Time 5.0 1.0 10.5 ns tPLZ Output Disable Time 5.0 1.0 9.5 ns (1) Voltage Range 5.0 is 5.0V ±0.5V. CAPACITANCE Symbol Parameter Typ Units Conditions CIN Input Capacitance 4.5 pF VCC = OPEN CPD Power Dissipation Capacitance 50.0 pF VCC = 5.0V 6 Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: 54AC257 54ACT257 |
Numéro de pièce similaire - 54ACT257 |
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Description similaire - 54ACT257 |
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