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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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74LVC244ADB 데이터시트(PDF) 9 Page - NXP Semiconductors |
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74LVC244ADB 데이터시트(HTML) 9 Page - NXP Semiconductors |
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9 / 18 page  74LVC_LVCH244A_6 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 06 — 13 August 2009 9 of 18 NXP Semiconductors 74LVC244A; 74LVCH244A Octal buffer/line driver; 3-state Measurement points are given in Table 8. Logic levels: VOL and VOH are typical output voltage levels that occur with the output load. Fig 7. 3-state enable and disable times. mna362 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 Table 8. Measurement points Supply voltage Input Output VCC VI VM VM VX VY 1.2 V VCC 0.5 × VCC 0.5 × VCC VOL + 0.1 V VOH − 0.1 V 2.7 V 2.7 V 1.5 V 1.5 V VOL + 0.3 V VOH − 0.3 V 3.0 V to 3.6 V 2.7 V 1.5 V 1.5 V VOL + 0.3 V VOH − 0.3 V |
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