FST3244QSCX

Overview

The FST3244QSCX is an 8-bit bus switch manufactured by Fairchild Semiconductor. It provides high-speed CMOS TTL-compatible switching capabilities within a single package. The device features four independent switch connections between two ports, enabling efficient data routing in digital systems. Designed for low power consumption, it minimizes propagation delay and eliminates ground bounce noise during operation. The component supports zero-bounce performance in flow-through mode, ensuring signal integrity across connected circuits.

Feature Summary

• Provides eight bits of high-speed CMOS TTL-compatible bus switching
• Features minimal propagation delay through the switch path
• Ensures zero bounce in flow-through mode for signal integrity
• Control inputs are compatible with standard TTL logic levels

Applications

• Hot-swapping and hot-docking interfaces
• Voltage translation between 5V and 3.3V systems
• Power conservation in portable devices
• Capacitance reduction and isolation in data processing
• Clock gating and bus switching applications

Procurement Notes

Verify that the suffix QSCX corresponds to the specific package and temperature range required for your design. Confirm RoHS compliance status directly from the manufacturer's datasheet before procurement. Ensure the ordering suffix matches the exact pin configuration and environmental specifications needed for your application.

Selection Notes

Select this component when designing systems requiring low on-resistance switches to prevent additional propagation delay or ground bounce noise. Consider its compatibility with TTL level control inputs for seamless integration into existing logic families. Evaluate its suitability for applications demanding capacitance reduction and isolation between different voltage domains.

Part Context

This part belongs to the FST series of bus switches, which are designed for high-speed data routing. Similar components include the FST3345 and FST3245, which offer comparable switching functionalities. These devices are commonly used in digital logic circuits where efficient bus management and signal isolation are critical requirements.

Replacement Considerations

The FST3245 serves as a functional substitute within the same family. Verify pin compatibility and electrical characteristics against the original specification sheet before implementation.