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74HC21N 数据表(PDF) 6 Page - NXP Semiconductors |
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74HC21N 数据表(HTML) 6 Page - NXP Semiconductors |
6 / 14 page 74HC21_5 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 05 — 7 May 2009 6 of 14 NXP Semiconductors 74HC21 Dual 4-input AND gate 11. Waveforms Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 7. Waveforms showing the input (nA, nB, nC, nD) to output (nY) propagation delays and the output transition times 001aab977 nA, nB, nC, nD input nY output VM VX VI tPHL tTHL tTLH tPLH VOH VM VY VOL GND Table 8. Measurement points Type Input Output VM VM VX VY 74HC21 0.5VCC 0.5VCC 0.1VCC 0.9VCC |
类似零件编号 - 74HC21N |
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类似说明 - 74HC21N |
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