The PI74FCT157TWC 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 SOIC 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 PI74FCT157TWC is a quad 2-input multiplexer, which comprises four independent 2-to-1 multiplexer circuits within a single integrated circuit package. Each of these multiplexers selects one of two input data sources (A or B) and routes the selected input to the corresponding output based on the logic level of the select input (S). The device incorporates three-state output drivers, allowing for connection to shared bus systems without causing bus contention when the device is not actively driving the bus. 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 are in a high-impedance state.

This device is engineered for high-speed operation combined with low power consumption, making it suitable for a broad range of digital system designs. The TTL-compatible inputs ensure seamless interfacing with other TTL logic devices. The SOIC (Small Outline Integrated Circuit) package provides a compact footprint, facilitating high-density board layouts. Typical applications include data selection, logic function generation, memory address selection, and peripheral selection. Its high-speed performance enables efficient data handling in critical timing applications. By integrating four multiplexers into a single package, the component count is reduced, and PCB layout complexity is minimized.