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74AVC16244 Datasheet(PDF) 9 Page - NXP Semiconductors |
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74AVC16244 Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 16 page 1999 Nov 15 9 Philips Semiconductors Product specification 16-bit buffer/line driver; 3-state (3.6 V tolerant) 74AVC16244 handbook, full pagewidth MNA478 tPLZ tPHZ outputs disabled outputs enabled VY VX outputs enabled output LOW-to-OFF OFF-to-LOW output HIGH-to-OFF OFF-to-HIGH nOE input VI VOL VOH VCC VM GND GND tPZL tPZH VM VM Fig.7 The 3-state output enable and disable times. VCC VM VX VY VI ≤2.3 to 2.7 V 0.5VCC VOL + 0.15 V VOH − 0.15 V VCC 3.0 to 3.6 V 0.5VCC VOL + 0.3 V VOH − 0.3 V VCC VOL and VOH are typical output voltage drop that occur with the output load. handbook, full pagewidth open GND 2 × VCC VCC VI VO MNA505 D.U.T. CL RT Rload Rload PULSE GENERATOR S1 Fig.8 Test circuitry for switching times. TEST S1 tPLH/tPHL open tPLZ/tPZL 2xVCC tPHZ/tPZH GND VCC VI Rload <2.3 V VCC 1000 Ω 2.3 to 2.7 V VCC 500 Ω 3.0 to 3.6 V VCC 500 Ω Definitions for test circuit: CL = load capacitance including jig and probe capacitance (See Chapter “AC characteristics”); RT = termination resistance should be equal to the output impedance Zo of the pulse generator. |
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