The PI74FCT157TQC 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 CERDIP 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 PI74FCT157TQC is a quad 2-input multiplexer, comprising four independent 2-to-1 multiplexers within a single package. Each multiplexer selects one of two data inputs (A or B) based on the logic level applied to the select input (S), routing the selected data to the corresponding output. The device features three-state outputs, allowing it to be easily connected to a shared bus system without causing bus contention when the device is not actively driving the bus. The three-state outputs are controlled by an output enable (OE) input; when OE is low, the outputs are enabled, and when OE is high, the outputs are in a high-impedance state.

Designed for high-speed operation and low power consumption, the PI74FCT157TQC is suitable for a wide range of digital system applications. The TTL-compatible inputs ensure easy interface with other logic devices. The CERDIP (Ceramic Dual In-line Package) provides enhanced thermal performance and reliability, making it suitable for harsh environments. Common applications include data selection, logic function generation, memory address selection, and peripheral selection. The high-speed performance allows for efficient data routing in critical timing applications. The integration of four multiplexers into a single package minimizes component count and simplifies PCB layout.