SN74ABT125

具有三态输出的四路总线缓冲器闸

The ’ABT125 quadruple bus buffer gates feature independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable OE\ input is high.

These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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Typical VOLP Output Ground Bounce

   <1 V at VCC = 5 V, TA = 25°C

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High-Drive Outputs –32-mA IOH, 64-mA IOL

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Ioff and Power-Up 3-State Support Hot Insertion

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Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17

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ESD Protection Exceeds JESD 22

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2000-V Human-Body Model A114-A

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200-V Machine Model A115-A