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SN74ACT244IDWREP Fiches technique(PDF) 2 Page - Texas Instruments |
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SN74ACT244IDWREP Fiches technique(HTML) 2 Page - Texas Instruments |
2 / 10 page www.ti.com 2OE 1 2 4 6 8 12 14 16 18 1A1 1A2 1A3 1A4 1Y1 1Y2 1Y3 1Y4 1OE 19 11 13 15 17 3 5 7 9 2A1 2A2 2A3 2A4 2Y1 2Y2 2Y3 2Y4 Absolute Maximum Ratings (1) Recommended Operating Conditions (1) SN74ACT244-EP OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS724B – OCTOBER 2003 – REVISED MARCH 2006 LOGIC DIAGRAM (POSITIVE LOGIC) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCC Supply voltage range –0.5 7 V VI Input voltage range(2) –0.5 VCC + 0.5 V VO Output voltage range(2) –0.5 VCC + 0.5 V IIK Input clamp current VI < 0 or VI > VCC ±20 mA IOK Output clamp current VO < 0 or VO > VCC ±20 mA IO Continuous output current VO = 0 to VCC ±50 mA Continuous current through VCC or GND ±200 mA DW package 58 θ JA Package thermal impedance(3) °C/W NS package 60 Tstg Storage temperature range(4) –65 150 °C (1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) The input and output voltage ratings may be exceeded if the input and output current ratings are observed. (3) The package thermal impedance is calculated in accordance with JESD 51-7. (4) Long-term high-temperature storage and/or extended use at maximum recommended operating conditions may result in a reduction of overall device life. See http://www.ti.com/ep_quality for additional information on enhanced plastic packaging. MIN MAX UNIT VCC Supply voltage 4.5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V VI Input voltage 0 VCC V VO Output voltage 0 VCC V IOH High-level output current –24 mA IOL Low-level output current 24 mA ∆t/∆v Input transition rise or fall rate 8 ns/V SN74ACT244M-EP –55 125 TA Operating free-air temperature °C SN74ACT244I-EP –40 85 (1) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. 2 Submit Documentation Feedback |
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