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74LVC3G17GT Folha de dados(PDF) 8 Page - NXP Semiconductors |
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74LVC3G17GT Folha de dados(HTML) 8 Page - NXP Semiconductors |
8 / 16 page 9397 750 14544 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 03 — 31 January 2005 8 of 16 Philips Semiconductors 74LVC3G17 Triple non-inverting Schmitt trigger with 5 V tolerant input 15. Transfer characteristics Test data is given in Table 11. RL = Load resistor. CL = Load capacitance including jig and probe capacitance. RT = Termination resistance should be equal to output impedance Zo of the pulse generator. Fig 7. Load circuitry for switching times Table 11: Test data Supply voltage Input Load VEXT VCC VI tr, tf CL RL tPLH, tPHL tPZH, tPHZ tPZL, tPLZ 1.65 V to 1.95 V VCC ≤ 2.0 ns 30 pF 1 k Ω open GND 2 × VCC 2.3 V to 2.7 V VCC ≤ 2.0 ns 30 pF 500 Ω open GND 2 × VCC 2.7 V 2.7 V ≤ 2.5 ns 50 pF 500 Ω open GND 6 V 3.0 V to 3.6 V 2.7 V ≤ 2.5 ns 50 pF 500 Ω open GND 6 V 4.5 V to 5.5 V VCC ≤ 2.5 ns 50 pF 500 Ω open GND 2 × VCC VEXT VCC VI VO mna616 D.U.T. CL RT RL RL PULSE GENERATOR Table 12: Transfer characteristics Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Min Typ Max Unit Tamb = −40 °C to +85 °C [1] VT+ positive-going threshold see Figure 8 and 9 VCC = 1.8 V 0.70 1.10 1.50 V VCC = 2.3 V 1.00 1.40 1.80 V VCC = 3.0 V 1.30 1.76 2.20 V VCC = 4.5 V 1.90 2.47 3.10 V VCC = 5.5 V 2.20 2.91 3.60 V VT− negative-going threshold see Figure 8 and 9 VCC = 1.8 V 0.25 0.61 0.90 V VCC = 2.3 V 0.40 0.80 1.15 V VCC = 3.0 V 0.60 1.04 1.50 V VCC = 4.5 V 1.00 1.55 2.00 V VCC = 5.5 V 1.20 1.86 2.30 V |
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