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SN74AHC245Q,pdf(Octal Bus Tran

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  • 标      签: transceive

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The SN74AHC245Q octal bus transceiver is designed for asynchronous two-way communicaTIon between data buses. The control-funcTIon implementaTIon minimizes external TIming requirements. This device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. 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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