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74LVTH244A Fiches technique(PDF) 4 Page - NXP Semiconductors |
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74LVTH244A Fiches technique(HTML) 4 Page - NXP Semiconductors |
4 / 15 page 74LVT_LVTH244A_4 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 04 — 3 September 2008 4 of 15 NXP Semiconductors 74LVT244A; 74LVTH244A 3.3 V octal buffer/line driver; 3-state 6. Functional description 6.1 Function table [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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. [2] The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. [3] For SO20 packages: above 70 °C derate linearly with 8 mW/K. For SSOP20 and TSSOP20 packages: above 60 °C derate linearly with 5.5 mW/K. For DHVQFN20 packages: above 60 °C derate linearly with 4.5 mW/K. 8. Recommended operating conditions Table 3. Function table [1] Control Input Output nOE nAn nYn LLL HH HX 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 VI input voltage [1] −0.5 +7.0 V VO output voltage output in OFF-state or HIGH-state [1] −0.5 +7.0 V IIK input clamping current VI < 0 V - −50 mA IOK output clamping current VO < 0 V - −50 mA IO output current output in LOW-state - 128 mA output in HIGH-state - −64 mA Tstg storage temperature −65 +150 °C Tj junction temperature [2] - 150 °C Ptot total power dissipation Tamb = −40 to +85 °C [3] 500 mW Table 5. Operating conditions Symbol Parameter Conditions Min Typ Max Unit VCC supply voltage 2.7 - 3.6 V VI input voltage 0 - 5.5 V IOH HIGH-level output current - - −32 mA |
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