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74AHCT244PW Scheda tecnica(PDF) 9 Page - NXP Semiconductors |
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74AHCT244PW Scheda tecnica(HTML) 9 Page - NXP Semiconductors |
9 / 16 page 74AHC_AHCT244_5 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 05 — 20 December 2007 9 of 16 NXP Semiconductors 74AHC244; 74AHCT244 Octal buffer/line driver; 3-state Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 7. enable and disable times 001aae014 tPLZ tPHZ outputs disabled outputs enabled VY VX outputs enabled nYn output LOW-to-OFF OFF-to-LOW nYn output HIGH-to-OFF OFF-to-HIGH nOE input VI VOL VOH VCC VM GND GND tPZL tPZH VM VM Table 8. Measurement points Type Input Output VM VM VX VY 74AHC244 0.5VCC 0.5VCC VOL + 0.3 V VOH − 0.3 V 74AHCT244 1.5 V 0.5VCC VOL + 0.3 V VOH − 0.3 V |
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