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74LVC1G14GM Fiches technique(PDF) 11 Page - NXP Semiconductors |
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74LVC1G14GM Fiches technique(HTML) 11 Page - NXP Semiconductors |
11 / 17 page 2004 Sep 10 11 Philips Semiconductors Product specification Single Schmitt-trigger inverter 74LVC1G14 Fig.9 Definitions of VT+, VT− and VH. handbook, halfpage MNA027 VO VI VH VT+ VT− handbook, halfpage 03 VI (V) ICC (mA) 10 0 2 MNA641 4 6 8 12 Fig.10 Typical transfer characteristics at VCC = 3.0 V. APPLICATION INFORMATION The slow input rise and fall times cause additional power dissipation, this can be calculated using the following formula: Pad =fi × (tr × ICC(AV) +tf × ICC(AV)) × VCC where: Pad = additional power dissipation (µW); fi = input frequency (MHz); tr = input rise time (ns); 10 % to 90 %; tf = input fall time (ns); 90 % to 10 %; ICC(AV) = average additional supply current (µA). Average ICC differs with positive or negative input transitions, as shown in Fig.11. An example of a relaxation circuit using the 74LVC1G14 is shown in Fig.12. Remark to the application information All values given are typical values unless otherwise specified. handbook, halfpage 02 6 12 0 8 6 4 2 10 MNA642 4 VCC (V) average ICC (mA) negative-going edge positive-going edge Fig.11 Average ICC for 74LVC1G Schmitt-trigger devices; linear change of VI between 0.8 V to 2.0 V. |
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