SN74ABT245BDW
TEXAS INSTRUMENTS SN74ABT245BDW 收发器, 非反相, 3态, 4.5V至5.5V, SOIC-20
The is an octal Bus Transceiver designed with 3-state outputs for asynchronous communication between data buses. The device transmits data 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 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 pull-up resistor and the minimum value of the resistor is determined by the current-sinking capability of the driver. This device is 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 device when it is 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.
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- IOFF and power-up 3-state support hot insertion
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- High-drive outputs
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- Latch-up performance exceeds 500mA per JEDEC standard JESD-17
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- Typical VOLP output ground bounce <1V at VCC = 5V, TA = 25°C
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- Green product and no Sb/Br
