74FST3345DWR2

Overview

The 74FST3345DWR2 is an 8-bit high-performance bus switch manufactured by onsemi. It operates within a supply voltage range of 4.0 V to 5.5 V and features CMOS compatibility with TTL logic levels. The device incorporates two independent output enable pins (OE1 and OE2) for flexible control. It provides low on-resistance and minimal propagation delay, ensuring signal integrity without introducing noise or ground bounce.

Feature Summary

• Provides eight bidirectional data paths controlled by separate enable inputs
• Maintains signal integrity through negligible propagation delay and absence of circuit bounce
• Operates reliably across industrial temperature ranges with low standby current consumption

Applications

• High-speed digital bus switching in computing systems
• Data routing in telecommunications equipment
• Signal isolation in consumer electronics interfaces

Procurement Notes

Verify the specific suffix DWR2 indicates the SOIC-20 package configuration and tape-and-reel shipping format. Confirm that the component meets RoHS standards as indicated by the manufacturer's lead-free strategy documentation. Ensure ordering aligns with the specified 1000-unit reel quantity requirements for production integration.

Selection Notes

Select this component when designing circuits requiring fast, low-distortion signal routing between different voltage domains. The dual enable architecture allows precise management of multiple data buses. Verify that the operating voltage range matches the system power supply specifications to ensure optimal performance and reliability.

Part Context

This device belongs to the 74FST series of high-speed bus switches designed for demanding digital applications. It offers pin-for-pin compatibility with similar devices from other manufacturers, facilitating direct replacements in existing designs. The technology focuses on minimizing electrical interference while maintaining high-speed data transfer capabilities.

Replacement Considerations

Direct substitutes include QS3345, FST3345, and CBT3345 based on official datasheet compatibility statements.