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74LV541D Datasheet(PDF) 6 Page - NXP Semiconductors |
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74LV541D Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 15 page 74LV541_3 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 03 — 14 April 2009 6 of 15 NXP Semiconductors 74LV541 Octal buffer/line driver; 3-state [1] All typical values are measured at Tamb =25 °C. [2] tpd is the same as tPLH and tPHL. ten is the same as tPZL and tPZH. tdis is the same as tPLZ and tPHZ. [3] Typical values are measured at nominal supply voltage (VCC = 3.3 V). [4] CPD is used to determine the dynamic power dissipation (PD in µW). PD =CPD × VCC2 × fi × N+ Σ(CL × VCC2 × fo) where: fi = input frequency in MHz, fo = output frequency in MHz CL = output load capacitance in pF VCC = supply voltage in Volts N = number of inputs switching Σ(C L × VCC 2 × f o) = sum of the outputs. 11. Waveforms CPD power dissipation capacitance CL = 50 pF; fi = 1 MHz; VI = GND to VCC [4] -37 - - - pF Table 7. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 7. Symbol Parameter Conditions −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ[1] Max Min Max Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load. Fig 5. Propagation delay input (An) to output (Yn) mna901 An input Yn output tPHL tPLH GND VI VM VM VOH VOL |
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