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74LV245 Arkusz danych(PDF) 8 Page - NXP Semiconductors |
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74LV245 Arkusz danych(HTML) 8 Page - NXP Semiconductors |
8 / 15 page 74LV245_3 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 03 — 15 April 2009 8 of 15 NXP Semiconductors 74LV245 Octal bus transceiver; 3-state Test data is given in Table 9. Definitions for test circuit: RL = Load resistance. CL = Load capacitance including jig and probe capacitance. RT = Termination resistance should be equal to output impedance Zo of the pulse generator. VEXT = External voltage for measuring switching times. Fig 7. Load circuit for measuring switching times VM VM tW tW 10 % 90 % 0 V VI VI negative pulse positive pulse 0 V VM VM 90 % 10 % tf tr tr tf 001aae331 VEXT VCC VI VO DUT CL RT RL RL G Table 9. Test data Supply voltage Input Load VEXT VCC VI tr, tf CL RL tPHL, tPLH tPZH, tPHZ tPZL, tPLZ < 2.7 V VCC ≤ 2.5 ns 50 pF 1 k Ω open GND 2VCC 2.7 V to 3.6 V 2.7 V ≤ 2.5 ns 15 pF, 50 pF 1 k Ω open GND 2VCC ≥ 4.5 V VCC ≤ 2.5 ns 50 pF 1 k Ω open GND 2VCC |
Podobny numer części - 74LV245_15 |
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Podobny opis - 74LV245_15 |
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