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74AUP1G157GM データシート(PDF) 9 Page - NXP Semiconductors |
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74AUP1G157GM データシート(HTML) 9 Page - NXP Semiconductors |
9 / 16 page 74AUP1G157_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 5 February 2008 9 of 16 NXP Semiconductors 74AUP1G157 Low-power 2-input multiplexer [1] All typical values are measured at nominal VCC. [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. 12. Waveforms CL = 5 pF, 10 pF, 15 pF and 30 pF CPD power dissipation capacitance fi = 1 MHz; VI = GND to VCC [3] VCC = 0.8 V - 2.6 - - - - pF VCC = 1.1 V to 1.3 V - 2.7 - - - - pF VCC = 1.4 V to 1.6 V - 2.8 - - - - pF VCC = 1.65 V to 1.95 V - 2.9 - - - - pF VCC = 2.3 V to 2.7 V - 3.4 - - - - pF VCC = 3.0 V to 3.6 V - 4.0 - - - - pF Table 8. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 9. Symbol Parameter Conditions 25 °C −40 °C to +125 °C Unit Min Typ[1] Max Min Max (85 °C) Max (125 °C) Measurement points are given in Table 9. Logic levels: VOL and VOH are typical output voltage drop that occur with the output load. Fig 8. The data inputs (I0, I1) and common data select input (S) to output (Y) propagation delays 001aac658 I0, I1, S input Y output VI VOH VOL VM tPHL tPLH VM GND Table 9. Measurement points Supply voltage Output Input VCC VM VM VI tr = tf 0.8 V to 3.6 V 0.5 × V CC 0.5 × V CC VCC ≤ 3.0 ns |
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