SN74LS640 Datasheet (ON Semiconductor)

SN74LS640, Octal Bus Transceivers

SN74LS640, SN74LS641, SN74LS642, SN74LS645 Octal Bus Transceivers These octal bus transceivers are designed for asynchronous two-way communication between data buses.

Control function implementation minimizes external timing requirements.

These circuits allow data transmission from the A bus to B or from the B bus to A bus depending upon the logic level of the direction control (DIR) input.

Enable input (G) can disable the device so that the buses are effectively isolated.

DEVICE LS640 LS641 L