SN74LVT244BDBR

3.3 -V ABT八路缓冲器/驱动器，具有三态输出 3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS

The is an octal Buffer/Line Driver designed specifically for low-voltage 3.3V VCC operation, but with the capability to provide a TTL interface to a 5V system environment. It is organized as two 4-bit line drivers with separate output-enable OE\ inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. 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. It 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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Supports mixed-mode signal operation

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IOFF and power-up 3-state support hot insertion

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Supports unregulated battery operation down to 2.7V

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Latch-up performance exceeds 100mA per JESD 78, class II

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<0.8V at VCC = 3.3V, TA = 25°C VOLP output ground bounce

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Green product and no Sb/Br