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CD74HCT258E 데이터시트(PDF) 3 Page - Texas Instruments |
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CD74HCT258E 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 5 page CD54HCT258, CD74HCT258 QUADRUPLE 2-LINE TO 1-LINE SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SCHS276A – MAY 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) 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 VCC V VO Output voltage VCC V ∆t/∆v Input transition rise or fall rate 500 ns TA Operating free-air temperature –55 125 °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 TA = –55°C TO 125 °C TA = –40°C TO 85 °C UNIT CC MIN MAX MIN MAX MIN MAX VOH VI =VIH or VIL IOH = –20 µA 45 V 4.4 4.4 4.4 V VOH VI = VIH or VIL IOH = –6 mA 4.5 V 3.98 3.7 3.84 V VOL VI =VIH or VIL IOL = 20 µA 45 V 0.1 0.1 0.1 V VOL VI = VIH or VIL IOL = 6 mA 4.5 V 0.26 0.4 0.33 V II VI = VCC or 0 5.5 V ±0.1 ±1 ±1 µA IOZ VO = VCC or 0 5.5 V ±0.5 ±10 ±5 µA ICC VI = VCC or 0, IO = 0 5.5 V 8 160 80 µA ∆ICC† One input at VCC – 2.1 V, Other inputs at 0 or VCC 4.5 V to 5.5 V 100 360 490 450 µA Ci 10 10 10 pF Co 20 20 20 pF † Additional quiescent supply current per input pin, TTL inputs high, 1 unit load. For dual-supply systems, theoretical worst-case (VI = 2.4 V, VCC = 5.5 V) specification is 1.8 mA. HCT INPUT LOADING TABLE INPUT UNIT LOAD G 1.5 A or B 0.5 A/B 1.5 Unit Load is ∆ICC limit specified in electrical characteristics table (e.g., 360 µA max at 25°C). |
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