74AC11257 - Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

This device is designed to multiplex signals from 4-bit data sources to four output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE\) input is at a high logic level.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

• 3-State Outputs Interface Directly With System Bus
• Flow-Through Architecture Optimizes PCB Layout
• Center-Pin V_CC and GND Configurations Minimize High-Speed Switching Noise
• 500-mA Typical Latch-Up Immunity at 125°C
• Provides Bus Interface From Multiple Sources in High-Performance Systems