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74AHC_AHCT139 Datenblatt(PDF) 9 Page - NXP Semiconductors |
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74AHC_AHCT139 Datenblatt(HTML) 9 Page - NXP Semiconductors |
9 / 14 page 74AHC_AHCT139_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 9 May 2008 9 of 14 NXP Semiconductors 74AHC139; 74AHCT139 Dual 2-to-4 line decoder/demultiplexer Test data is given in Table 9. Definitions test circuit: RT = termination resistance should be equal to output impedance Zo of the pulse generator. CL = load capacitance including jig and probe capacitance. Fig 7. Load circuitry for measuring switching times 001aah768 tW tW tr tr tf VM VI negative pulse GND VI positive pulse GND 10 % 90 % 90 % 10 % VM VM VM tf VCC DUT RT VI VO CL G Table 9. Test data Type Input Load Test VI tr, tf CL 74AHC139 VCC ≤ 3.0 ns 15 pF, 50 pF tPLH, tPHL 74AHCT139 3.0 V ≤ 3.0 ns 15 pF, 50 pF tPLH, tPHL |
Ähnliche Teilenummer - 74AHC_AHCT139_15 |
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Ähnliche Beschreibung - 74AHC_AHCT139_15 |
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