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74HC7540N датащи(PDF) 7 Page - NXP Semiconductors |
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74HC7540N датащи(HTML) 7 Page - NXP Semiconductors |
7 / 16 page 74HC_HCT7540 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet Rev. 4 — 31 December 2012 7 of 16 NXP Semiconductors 74HC7540; 74HCT7540 Octal Schmitt trigger buffer/line driver; 3-state; inverting 11. Waveforms Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 5. Input to output propagation delays DDD <Q RXWSXW $Q LQSXW 9, *1' 92+ 92/ W7+/ W7/+ W3/+ 90 90 90 90 W3+/ Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 6. 3-state enable and disable times DDD *1' 9&& 92/ RXWSXWV HQDEOHG 9, *1' 90 W3/= 9; 9< 92+ <QRXWSXW /2:WR2)) 2))WR/2: <QRXWSXW +,*+WR2)) 2))WR+,*+ 2(Q LQSXW W3+= RXWSXWV HQDEOHG RXWSXWV GLVDEOHG 90 W3=+ 90 W3=/ Table 8. Measurement points Type Input Output VM VM VX VY 74HC7540 0.5VCC 0.5VCC 0.1VCC 0.9VCC 74HCT7540 1.3 V1.3 V0.1VCC 0.9VCC |
Аналогичный номер детали - 74HC7540N |
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Аналогичное описание - 74HC7540N |
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