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74LV541 Scheda tecnica(PDF) 3 Page - NXP Semiconductors |
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74LV541 Scheda tecnica(HTML) 3 Page - NXP Semiconductors |
3 / 15 page 74LV541_3 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 03 — 14 April 2009 3 of 15 NXP Semiconductors 74LV541 Octal buffer/line driver; 3-state 5.2 Pin description 6. Functional description [1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state. 7. Limiting values [1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] For DIP20 packages: above 70 °C the value of Ptot derates linearly with 12 mW/K. For SO20 packages: above 70 °C the value of Ptot derates linearly with 8 mW/K. For (T)SSOP20 packages: above 60 °C the value of Ptot derates linearly with 5.5 mW/K. Table 2. Pin description Symbol Pin Description OE1 1 output enable input (active LOW) A0 to A7 2, 3, 4, 5, 6, 7, 8, 9 data input GND 10 ground (0 V) Y0 to Y7 18, 17, 16, 15, 14, 13, 12, 11 data output OE2 19 output enable input (active LOW) VCC 20 supply voltage Table 3. Functional table[1] Control Input Output OE1 OE2 An Yn LL L L LL H H XH X Z HX X Z Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Min Max Unit VCC supply voltage −0.5 +4.6 V IIK input clamping current VI < −0.5 V or VI >VCC + 0.5 V [1] -20 mA IOK output clamping current VO < −0.5 V or VO >VCC + 0.5 V [1] -50 mA IO output current VO = −0.5 V to (VCC + 0.5 V) - 35 mA ICC supply current - 70 mA IGND ground current −70 - mA Tstg storage temperature −65 +150 °C Ptot total power dissipation Tamb = −40 °C to +125 °C [2] DIP20 - 750 mW SO20, SSOP20, TSSOP20 - 500 mW |
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