The PI74FCT157CTQX is a high-speed Quad 2-Input Multiplexer manufactured by Pericom Semiconductor (now Diodes Incorporated). It is designed for selecting one of two data sources for routing to an output in high-performance digital systems.

Applications

• Data selection and multiplexing
• Logic function generation
• Memory address selection
• Peripheral selection
• Routing data between different system components

Features

• Quad 2-input multiplexer
• High-speed operation
• Low power consumption
• Three-state outputs
• TTL compatible inputs
• Available in QSOP package

Benefits

• Efficient data selection
• Flexible data routing capabilities
• Reduced power consumption
• Minimized bus loading with three-state outputs
• Direct interface with other logic devices

Additional Details

The PI74FCT157CTQX is a quad 2-input multiplexer, comprising four independent 2-to-1 multiplexers in a single package. Each multiplexer selects one of two data inputs, A or B, and routes the selected input to the corresponding output based on the state of the select input (S). The device includes three-state outputs, enabling easy connection to a shared bus system without causing contention when the device is inactive. The output enable (OE) input controls the three-state outputs; when OE is low, the outputs are enabled, and when OE is high, the outputs enter a high-impedance state.

The PI74FCT157CTQX is designed for high-speed operation with low power consumption, making it suitable for a wide range of digital applications. TTL-compatible inputs facilitate easy integration with other logic devices. The QSOP (Quarter Size Outline Package) allows for high-density board designs, minimizing space requirements. Applications commonly using this multiplexer include data selection, logic function generation, memory address selection, and peripheral selection. The high-speed performance makes it valuable in systems needing rapid data routing. By integrating four multiplexers in a single package, component count is reduced, and system efficiency is enhanced.