SN74CBT3125CDBR

Overview

The SN74CBT3125CDBR is a quadruple bus switch manufactured by Texas Instruments, designed for high-speed digital signal routing. It operates within a supply voltage range of 4 V to 5.5 V and features a maximum on-resistance of 12 Ohms. The device ensures low propagation delay with a maximum value of 150 ps, supporting efficient data transmission. It is housed in an SSOP-20 package suitable for surface-mount applications and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides four independent bidirectional bus switches for flexible signal path management
• Delivers low on-resistance to minimize signal attenuation during active states
• Supports high-speed operation through minimized propagation delay characteristics

Applications

• High-speed data bus switching in consumer electronics
• Signal routing in industrial control systems
• Data line isolation in communication equipment

Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SSOP-20 package and reel packaging configuration required for your assembly process. Confirm that the 4 V to 5.5 V operating voltage aligns with your system's power supply rails. Ensure thermal management strategies accommodate the specified -40°C to +85°C ambient operating range for reliable long-term performance.

Selection Notes

Select this component when quadruple independent switching is required for 5 V logic families. The SSOP-20 package offers a compact footprint compared to wider packages while maintaining sufficient pin spacing. Consider the 12 Ohm on-resistance limit for impedance matching requirements in high-frequency signal paths where minimal voltage drop is critical.

Part Context

This part belongs to the SN74CBT3125C family of quadruple bus switches from Texas Instruments. It shares functional similarities with other members like the SN74CBT3125CD but differs in packaging and tape-and-reel specifications. The series is characterized by low on-resistance and high-speed performance, distinguishing it from standard logic buffers or lower-speed multiplexers.

Replacement Considerations

Direct substitutes include the SN74CBT3125CD (tube packaging) or SN74CBT3125CPWR (TSSOP-14 package). Verify pin compatibility and package dimensions before substitution, as physical footprints differ between SSOP-20, SOIC-20, and TSSOP-14 variants.