SN74LS642-1DW Texas Instruments - Yeehing Electronics

Octal bus transceivers with open collector outputs

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Specifications

For more information, please refer to datasheet

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More Information

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control (DIR) input. The enable input (G) can be used to disable the device so the buses are effectively isolated.