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74HC_HCT151 Datasheet(PDF) 9 Page - NXP Semiconductors |
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74HC_HCT151 Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 19 page 74HC_HCT151 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 5 — 26 January 2015 9 of 19 NXP Semiconductors 74HC151; 74HCT151 8-input multiplexer [1] tpd is the same as tPLH and tPHL. [2] tt is the same as tTHL and tTLH. [3] CPD is used to determine the dynamic power dissipation (PD in W). PD =CPD VCC2 fi N+ (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; (C L VCC 2 f o) = sum of outputs. CPD power dissipation capacitance CL = 50 pF; f = 1 MHz; VI =GND to VCC [3] -40 - - - - - pF 74HCT151 tpd propagation delay In to Y; see Figure 5 [1] VCC = 4.5 V - 22 38 - 48 - 57 ns VCC =5V; CL =15pF - 19 - - - - - ns In to Y; see Figure 5 [1] VCC = 4.5 V - 22 38 - 48 - 57 ns VCC =5V; CL =15pF - 19 - - - - - ns Sn to Y; see Figure 6 [1] VCC = 4.5 V - 23 41 - 51 - 62 ns VCC =5V; CL =15pF - 20 - - - - - ns Sn to Y; see Figure 6 [1] VCC = 4.5 V - 25 43 - 54 - 65 ns VCC =5V; CL =15pF - 20 - - - - - ns E to Y; see Figure 6 [1] VCC = 4.5 V - 16 29 - 36 - 44 ns VCC =5V; CL =15pF - 13 - - - - - ns E to Y; see Figure 6 [1] VCC = 4.5 V - 21 36 - 45 - 54 ns VCC =5V; CL =15pF - 18 - - - - - ns tt transition time Y, Y; see Figure 5 [2] VCC = 4.5 V - 7 15 - 19 - 22 ns CPD power dissipation capacitance CL = 50 pF; f = 1 MHz; VI = GND to VCC 1.5 V [3] -40 - - - - - pF Table 7. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 7. Symbol Parameter Conditions Tamb = 25 C Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit Min Typ Max Min Max Min Max |
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