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SN74LVC257ADG4 Datasheet(PDF) 3 Page - Texas Instruments |
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SN74LVC257ADG4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 23 page www.ti.com Absolute Maximum Ratings (1) Recommended Operating Conditions (1) SN54LVC257A, SN74LVC257A QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SCAS294N – JANUARY 1993 – REVISED JUNE 2005 over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCC Supply voltage range –0.5 6.5 V VI Input voltage range(2) –0.5 6.5 V VO Output voltage range(2)(3) –0.5 VCC + 0.5 V IIK Input clamp current VI < 0 –50 mA IOK Output clamp current VO < 0 –50 mA IO Continuous output current ±50 mA Continuous current through VCC or GND ±100 mA D package(4) 73 DB package(4) 82 θ JA Package thermal impedance NS package(4) 64 °C/W PW package(4) 108 RGY package(5) 39 Tstg Storage temperature range –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 negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. (3) The value of VCC is provided in the recommended operating conditions table. (4) The package thermal impedance is calculated in accordance with JESD 51-7. (5) The package thermal impedance is calculated in accordance with JESD 51-5. SN54LVC257A SN74LVC257A UNIT MIN MAX MIN MAX Operating 2 3.6 1.65 3.6 VCC Supply voltage V Data retention only 1.5 1.5 VCC = 1.65 V to 1.95 V 0.65 × VCC VIH High-level input voltage VCC = 2.3 V to 2.7 V 1.7 V VCC = 2.7 V to 3.6 V 2 2 VCC = 1.65 V to 1.95 V 0.35 × VCC VIL Low-level input voltage VCC = 2.3 V to 2.7 V 0.7 V VCC = 2.7 V to 3.6 V 0.8 0.8 VI Input voltage 0 5.5 0 5.5 V VO Output voltage 0 VCC 0 VCC V VCC = 1.65 V –4 VCC = 2.3 V –8 IOH High-level output current mA VCC = 2.7 V –12 –12 VCC = 3 V –24 –24 VCC = 1.65 V 4 VCC = 2.3 V 8 IOL Low-level output current mA VCC = 2.7 V 12 12 VCC = 3 V 24 24 ∆t/∆v Input transition rise or fall rate 10 10 ns/V TA Operating free-air temperature –55 125 –40 85 °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. 3 |
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