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74AHC3GU04DC Fiches technique(PDF) 5 Page - NXP Semiconductors |
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74AHC3GU04DC Fiches technique(HTML) 5 Page - NXP Semiconductors |
5 / 15 page 74AHC3GU04_4 © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 04 — 7 January 2010 5 of 15 NXP Semiconductors 74AHC3GU04 Inverter 11. Dynamic characteristics [1] tpd is the same as tPLH and tPHL. [2] Typical values are measured at VCC = 3.3 V. [3] Typical values are measured at VCC = 5.0 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 V; N = number of inputs switching; Σ(C L × VCC 2 × f o) = sum of the outputs. 12. Waveforms Table 8. Dynamic characteristics GND = 0 V; For test circuit see Figure 7. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max tpd propagation delay nA to nY; see Figure 6 [1] VCC = 3.0 V to 3.6 V [2] CL = 15 pF - 3.0 7.1 1.0 8.5 1.0 10.0 ns CL = 50 pF - 4.3 10.6 1.0 12.0 1.0 13.5 ns VCC = 4.5 V to 5.5 V [3] CL = 15 pF - 2.5 5.5 1.0 6.0 1.0 7.0 ns CL = 50 pF - 3.5 7.0 1.0 8.0 1.0 9.0 ns CPD power dissipation capacitance per buffer; VI = GND to VCC [4] - 4 - - - - - pF Fig 6. The input (nA) to output (nY) propagation delays. mna344 tPHL tPLH VM VM VM VM nA input nY output GND VI VOH VOL Table 9. Measurement points Type Input Output VM VM 74AHC3GU04 0.5VCC 0.5VCC |
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