Datasheet 74HCU04 (Nexperia) - 5

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Nexperia 74HCU04 Hex unbuffered inverter 10. Dynamic characteristics Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); tr = tf = 6.0 ns; For test circuit see Fig. 7.
Symbol Parameter Conditions 25 °C -40 °C to -40 °C to Unit +85 °C +125 °C Typ Max Max Max
tpd propagation delay nA to nY; see Fig. 6 [1] VCC = 2.0 V; CL = 50 pF 19 70 90 105 ns VCC = 4.5 V; CL = 50 pF 7 14 18 21 ns VCC = 5.0 V; CL = 15 pF 5 - - - ns VCC = 6.0 V; CL = 50 pF 6 12 15 18 ns tt transition time see Fig. 6 [2] VCC = 2.0 V; CL = 50 pF 19 75 95 110 ns VCC = 4.5 V; CL = 50 pF 7 15 19 22 ns VCC = 6.0 V; CL = 50 pF 6 13 16 19 ns CPD power dissipation per inverter; VI = GND to VCC [3] 10 - - - pF capacitance [1] tpd is the same as tPHL, tPLH. [2] tt is the same as tTHL, tTLH. [3] CPD is used to determine the dynamic power dissipation (PD in μW). PD = CPD x VCC 2 x fi x N + Σ(CL x VCC 2 x 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(CL x VCC 2 x fo) = sum of outputs.
10.1. Waveform and test circuit
VI V nA input V CC M VM GND VI VO PULSE DUT t GENERATOR PHL tPLH CL V R OH T 50 pF 90 % nY output VM VM mna034 10 % VOL Definitions for test circuit: t C THL tTLH L = Load capacitance including jig and probe mna722 capacitance. VM = 0.5 x VCC; VI = GND to VCC. RT = Termination resistance should be equal to
Fig. 6. The input (nA) to output (nY) propagation delay
output impedance Zo of the pulse generator.
times Fig. 7. Test circuit for measuring switching times
74HCU04 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. Al rights reserved
Product data sheet Rev. 9 — 31 May 2021 5 / 14
Document Outline 1. General description 2. Features and benefits 3. Ordering information 4. Functional diagram 5. Pinning information 5.1. Pinning 5.2. Pin description 6. Functional description 7. Limiting values 8. Recommended operating conditions 9. Static characteristics 10. Dynamic characteristics 10.1. Waveform and test circuit 11. Typical transfer characteristics 12. Application information 13. Package outline 14. Abbreviations 15. Revision history 16. Legal information Contents