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74AHCT30BQ 데이터시트(PDF) 7 Page - NXP Semiconductors |
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7 / 14 page 74AHC_AHCT30_3 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 03 — 26 June 2009 7 of 14 NXP Semiconductors 74AHC30; 74AHCT30 8-input NAND gate [1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V). [2] tpd is the same as tPLH and tPHL. [3] 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. 11. Waveforms CPD power dissipation capacitance fi = 1 MHz; VI = GND to VCC [3] -10 - - - - - pF 74AHCT30; VCC = 4.5 V to 5.5 V tpd propagation delay A, B, C, D, E, F, G, H to Y; see Figure 6 and 7 [2] CL = 15 pF - 3.3 6.5 1.0 7.5 1.0 8.0 ns CL = 50 pF - 4.7 8.5 1.0 9.5 1.0 10.5 ns CPD power dissipation capacitance fi = 1 MHz; VI = GND to VCC [3] -12 - - - - - pF Table 7. Dynamic characteristics …continued Voltages are referenced to GND (ground = 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[1] Max Min 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 6. Input to output propagation delays mna491 tPHL tPLH VM VM VI GND VOH VOL A, B, C, D, E, F, G, H input Y output Table 8. Measurement points Type Input Output VM VM 74AHC30 0.5 × V CC 0.5 × V CC 74AHCT30 1.5 V 0.5 × V CC |
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