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SN74ACT240NE4 Datasheet(PDF) 3 Page - Texas Instruments |
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SN74ACT240NE4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 17 page SN54ACT240, SN74ACT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCAS515C – JUNE 1995 – REVISED OCTOBER 2002 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) SN54ACT240 SN74ACT240 UNIT MIN MAX MIN MAX UNIT VCC Supply voltage 4.5 5.5 4.5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V VI Input voltage 0 VCC 0 VCC V VO Output voltage 0 VCC 0 VCC V IOH High-level output current –24 –24 mA IOL Low-level output current 24 24 mA ∆t/∆v Input transition rise or fall rate 8 8 ns/V TA Operating free-air temperature –55 125 –40 85 °C NOTE 3: 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. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54ACT240 SN74ACT240 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT IOH = 50 µA 4.5 V 4.4 4.49 4.4 4.4 IOH = –50 µA 5.5 V 5.4 5.49 5.4 5.4 VOH IOH = 24 mA 4.5 V 3.86 3.7 3.76 V VOH IOH = –24 mA 5.5 V 4.86 4.7 4.76 V IOH = –50 mA† 5.5 V 3.85 IOH = –75 mA† 5.5 V 3.85 IOL =50 µA 4.5 V 0.001 0.1 0.1 0.1 IOL = 50 µA 5.5 V 0.001 0.1 0.1 0.1 VOL IOL =24mA 4.5 V 0.36 0.5 0.44 V VOL IOL = 24 mA 5.5 V 0.36 0.5 0.44 V IOL = 50 mA† 5.5 V 1.65 IOL = 75 mA† 5.5 V 1.65 IOZ VO = VCC or GND 5.5 V ±0.25 ±5 ±2.5 µA II VI = VCC or GND 5.5 V ±0.1 ±1 ±1 µA ICC VI = VCC or GND, IO = 0 5.5 V 4 80 40 µA ∆ICC‡ One input at 3.4 V, Other inputs at GND or VCC 5.5 V 0.6 1.6 1.5 mA Ci VI = VCC or GND 5 V 2.5 pF Co VI = VCC or GND 5 V 8 pF † Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms. ‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC. |
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