74257 74LS257 Quad 2-input multiplexer 3-state DIP-16

74257 Quad 2-input multiplexer 3-state

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

The device allows 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 enable
input (G) can be used to disable the device so that the buses are effectively isolated.