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SN74LVT240A,pdf(3.3-V ABT 16-B

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  • 标      签: Drivers

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This octal buffer and line driver is designed specifically for low-voltage (3.3-V) VCC operaTIon, but with the capability to provide a TTL interface to a 5-V system environment. The SN74LVT240A is organized as two 4-bit buffer/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. When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, 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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