SN74HC244NSR

八路缓冲器并用3态输出线路驱动器 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS

The is an octal Buffer/Line Driver designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers and bus-oriented receivers and transmitters. The SNx4HC244 device is organized as two 4-bit buffers and drivers with separate output-enable OE inputs. When OE is low, the device passes non-inverted 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.

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High-current outputs drive up to 15 LSTTL loads

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3-state Outputs drive bus lines or buffer memory address registers

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80µA maximum ICC low power consumption

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11ns typical Propagation delay tpd

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±6mA Output drive at 5V

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1µA maximum Low input current

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Green product and no Sb/Br