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SN74AC244MDWREP Folha de dados(PDF) 3 Page - Texas Instruments |
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SN74AC244MDWREP Folha de dados(HTML) 3 Page - Texas Instruments |
3 / 12 page www.ti.com Recommended Operating Conditions (1) Electrical Characteristics SN74AC244-EP OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS723B – OCTOBER 2003 – REVISED APRIL 2006 MIN MAX UNIT VCC Supply voltage 2 6 V VCC = 3 V 2.1 VIH High-level input voltage VCC = 4.5 V 3.15 V VCC = 5.5 V 3.85 VCC = 3 V 0.9 VIL Low-level input voltage VCC = 4.5 V 1.35 V VCC = 5.5 V 1.65 VI Input voltage 0 VCC V VO Output voltage 0 VCC V VCC = 3 V –12 IOH High-level output current VCC = 4.5 V –24 mA VCC = 5.5 V –24 VCC = 3 V 12 IOL Low-level output current VCC = 4.5 V 24 mA VCC = 5.5 V 24 ∆t/∆v Input transition rise or fall rate 8 ns/V TA Operating free-air temperature –55 125 °C (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. over recommended operating free-air temperature range (unless otherwise noted) TA = 25°C PARAMETER TEST CONDITIONS VCC MIN MAX UNIT MIN TYP MAX 3 V 2.9 2.9 IOH = –50 µA 4.5 V 4.4 4.4 5.5 V 5.4 5.4 VOH V IOH = –12 mA 3 V 2.56 2.4 4.5 V 3.86 3.7 IOH = –24 mA 5.5 V 4.86 4.7 3 V 0.1 0.1 IOL = 50 µA 4.5 V 0.1 0.1 5.5 V 0.1 0.1 VOL V IOL = 12 mA 3 V 0.36 0.5 4.5 V 0.36 0.5 IOL = 24 mA 5.5 V 0.36 0.5 Data inputs VI = VCC or GND ±0.1 ±1 II 5.5 V µA Control inputs VI = VCC or GND ±0.1 ±1 IOZ VO = VCC or GND, VI(OE) = VIL or VIH 5.5 V ±0.25 ±5 µA ICC VI = VCC or GND, IO = 0 5.5 V 4 80 µA Ci VI = VCC or GND 5 V 2.5 pF 3 Submit Documentation Feedback |
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