74FST3244DTR2

Overview

The onsemi 74FST3244DTR2G is an 8-bit high-performance bus switch designed for CMOS and TTL compatibility within a 4.0 V to 5.5 V supply voltage range. It features two independent 4-bit switches with separate Output/Enable (OE) pins, allowing flexible port configuration. The device exhibits extremely low on-resistance and nearly zero propagation delay, contributing negligible noise or ground bounce to the system. Control inputs are compatible with standard logic levels, ensuring seamless integration into digital circuits requiring efficient signal routing.

Feature Summary

• Features two independent 4-bit switches with separate enable control for flexible data path management
• Provides extremely low on-resistance and minimal propagation delay for high-speed signal integrity
• Maintains nearly zero standby current and eliminates circuit bounce during switching operations
• Supports pin-for-pin replacement with industry-standard FST and CBT series components

Applications

• High-speed data bus switching in computer systems
• Signal routing in telecommunications equipment
• Interface bridging between different logic families
• Memory subsystem data path management

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the DTR2 designation indicates TSSOP-20 packaging. Confirm RoHS compliance status and Pb-Free characteristics directly from the manufacturer's documentation before procurement. Ensure the component version aligns with the latest datasheet revision to guarantee electrical parameter accuracy and availability of technical support resources.

Selection Notes

Select this component when low on-resistance and minimal signal distortion are critical for maintaining data integrity in high-frequency applications. Consider the separate OE pins for independent control of each 4-bit segment. Verify that the operating voltage range of 4.0 V to 5.5 V aligns with the system power supply. Evaluate thermal requirements based on the TSSOP-20 package thermal resistance specifications under expected load conditions.

Part Context

This device belongs to the 74FST logic family, which is optimized for high-speed performance while maintaining compatibility with standard TTL and CMOS interfaces. The 74FST3244 specifically addresses applications requiring efficient bidirectional data transfer with minimal signal degradation. Its design focuses on reducing power consumption and electromagnetic interference compared to traditional bus transceivers.

Replacement Considerations

Pin-for-pin compatible with QS3244, FST3244, and CBT3244 devices. Verify electrical parameters such as on-resistance and propagation delay match application requirements when substituting. Ensure control input voltage levels remain within specified limits for all compatible alternatives.