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SN74LV157ADBR 数据表(PDF) 4 Page - Texas Instruments |
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SN74LV157ADBR 数据表(HTML) 4 Page - Texas Instruments |
4 / 17 page SN54LV157A, SN74LV157A QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS SCLS397F − APRIL 1998 − REVISED APRIL 2005 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 4) SN54LV157A SN74LV157A UNIT MIN MAX MIN MAX UNIT VCC Supply voltage 2 5.5 2 5.5 V VCC = 2 V 1.5 1.5 VIH High-level input voltage VCC = 2.3 V to 2.7 V VCC × 0.7 VCC × 0.7 V VIH High-level input voltage VCC = 3 V to 3.6 V VCC × 0.7 VCC × 0.7 V VCC = 4.5 V to 5.5 V VCC × 0.7 VCC × 0.7 VCC = 2 V 0.5 0.5 VIL Low-level input voltage VCC = 2.3 V to 2.7 V VCC × 0.3 VCC × 0.3 V VIL Low-level input voltage VCC = 3 V to 3.6 V VCC × 0.3 VCC × 0.3 V VCC = 4.5 V to 5.5 V VCC × 0.3 VCC × 0.3 VI Input voltage 0 5.5 0 5.5 V VO Output voltage 0 VCC 0 VCC V VCC = 2 V −50 −50 µA IOH High-level output current VCC = 2.3 V to 2.7 V −2 −2 IOH High-level output current VCC = 3 V to 3.6 V −6 −6 mA VCC = 4.5 V to 5.5 V −12 −12 mA VCC = 2 V 50 50 µA IOL Low-level output current VCC = 2.3 V to 2.7 V 2 2 IOL Low-level output current VCC = 3 V to 3.6 V 6 6 mA VCC = 4.5 V to 5.5 V 12 12 mA VCC = 2.3 V to 2.7 V 200 0 200 ∆t/∆v Input transition rise or fall rate VCC = 3 V to 3.6 V 100 0 100 ns/V ∆t/∆v Input transition rise or fall rate VCC = 4.5 V to 5.5 V 20 0 20 ns/V TA Operating free-air temperature −55 125 −40 85 °C NOTE 4: 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 SN54LV157A SN74LV157A UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN TYP MAX UNIT IOH = −50 µA 2 V to 5.5 V VCC−0.1 VCC−0.1 VOH IOH = −2 mA 2.3 V 2 2 V VOH IOH = −6 mA 3 V 2.48 2.48 V IOH = −12 mA 4.5 V 3.8 3.8 IOL = 50 µA 2 V to 5.5 V 0.1 0.1 VOL IOL = 2 mA 2.3 V 0.4 0.4 V VOL IOL = 6 mA 3 V 0.44 0.44 V IOL = 12 mA 4.5 V 0.55 0.55 II VI = 5.5 V or GND 0 to 5.5 V ±1 ±1 µA ICC VI = VCC or GND, IO = 0 5.5 V 20 20 µA Ioff VI or VO = 0 to 5.5 V 0 5 5 µA Ci VI = VCC or GND 3.3 V 1.7 1.7 pF PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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