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74AHCT157 Scheda tecnica(PDF) 7 Page - NXP Semiconductors |
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74AHCT157 Scheda tecnica(HTML) 7 Page - NXP Semiconductors |
7 / 16 page 74AHC_AHCT157_2 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 02 — 9 November 2007 7 of 16 NXP Semiconductors 74AHC157; 74AHCT157 Quad 2-input multiplexer 10. Dynamic characteristics II input leakage current VI = 5.5 V or GND; VCC =0Vto5.5 V - - 0.1 - 1.0 - 2.0 µA ICC supply current VI =VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 µA ∆ICC additional supply current per input pin; VI =VCC − 2.1 V; IO = 0 A; other pins at VCC or GND; VCC = 4.5 V to 5.5 V - - 1.35 - 1.5 - 1.5 mA CI input capacitance - 3 10 - 10 - 10 pF CO output capacitance - 4.0 - - - - - pF Table 6. Static characteristics …continued Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max Table 7. Dynamic characteristics GND = 0 V; For test circuit see Figure 9. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ[1] Max Min Max Min Max For type 74AHC157 tpd propagation delay nI0, nI1 to nY; see Figure 7 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 4.4 9.7 1.0 11.5 1.0 12.5 ns CL = 50 pF - 6.3 13.2 1.0 15.0 1.0 16.5 ns VCC = 4.5 V to 5.5 V CL = 15 pF - 3.2 6.4 1.0 7.5 1.0 8.0 ns CL = 50 pF - 4.6 8.4 1.0 9.5 1.0 10.5 ns S to nY; see Figure 7 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 4.8 13.6 1.0 16.0 1.0 17.0 ns CL = 50 pF - 6.8 17.1 1.0 19.5 1.0 21.5 ns VCC = 4.5 V to 5.5 V CL = 15 pF - 3.6 8.6 1.0 10.0 1.0 11.0 ns CL = 50 pF - 5.2 10.6 1.0 12.0 1.0 13.5 ns E to nY; see Figure 8 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 5.9 13.2 1.0 15.5 1.0 16.5 ns CL = 50 pF - 8.4 16.7 1.0 19.0 1.0 21.0 ns VCC = 4.5 V to 5.5 V CL = 15 pF - 4.2 8.1 1.0 9.5 1.0 10.5 ns CL = 50 pF - 6.0 10.1 1.0 11.5 1.0 13.0 ns |
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