SN74AS245

具有三态输出的八路总线收发器

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon 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.

The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.

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4.5-V to 5.5-V VCC Operation

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Max tpd of 5.5 ns at 5 V

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3-State Outputs Drive Bus Lines Directly

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pnp Inputs Reduce dc Loading