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SN74ACT1284PWR Scheda tecnica(PDF) 3 Page - Texas Instruments |
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SN74ACT1284PWR Scheda tecnica(HTML) 3 Page - Texas Instruments |
3 / 12 page SN54ACT1284, SN74ACT1284 7BIT BUS INTERFACES WITH 3STATE OUTPUTS SCAS459D − NOVEMBER 1994 − REVISED OCTOBER 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC −0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-port input and output voltage range, VI and VO (see Notes 1 and 2) −2 V to 7 V . . . . . . . . . . . . . . . . . . . . . . A-port input and output voltage range, VI and VO (see Note 1) −0.5 V to VCC + 0.5 V . . . . . . . . . . . . . . . . . . . . Input clamp current, IIK (VI < 0 or VI > VCC) ±20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output clamp current, IOK (VO < 0 or VO > VCC) ±50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous output current, IO (VO = 0 to VCC) ±50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous current through VCC or GND ±200 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 3): DB package 70 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DW package 58 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NS package 60 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PW package 83 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg −65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † 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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The ac input voltage pulse duration is limited to 20 ns if the input voltage goes more negative than −0.5 V. 3. The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions (see Note 4) SN54ACT1284 SN74ACT1284 UNIT MIN MAX MIN MAX UNIT VCC Supply voltage 4.7 5.5 4.7 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 Open-drain output voltage HD low 0 5.5 0 5.5 V IOH High-level output current B port, HD high −14 −14 mA IOH High-level output current A port −4 −4 mA IOL Low-level output current B port 14 14 mA IOL Low-level output current A port 4 4 mA TA Operating free-air temperature −55 125 0 70 °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. 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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