SN74CBT3251DBR

Overview

The SN74CBT3251DBR is a Texas Instruments multiplexer/demultiplexer IC featuring an 8-channel FET configuration in a single circuit. It operates within a supply voltage range of 4 V to 5.5 V, typically at 5 V. The device provides a maximum on-resistance of 7 Ohms and supports a bandwidth of 200 MHz. Timing characteristics include a maximum propagation delay of 6.4 ns and a maximum transition time of 6.8 ns. It functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides high-speed signal routing with low on-resistance for minimal signal attenuation
• Supports bidirectional data flow suitable for both multiplexing and demultiplexing applications
• Operates with standard 5 V logic levels while maintaining low power consumption

Applications

• High-speed data bus switching systems
• Portable equipment requiring efficient signal routing
• Communication devices utilizing 5 V logic interfaces

Procurement Notes

Verify the specific package variant against project requirements, as the SN74CBT3251 series includes multiple packaging options such as SSOP-16 and VQFN. Confirm that the selected component matches the required lead-free status and RoHS compliance specifications. Ensure the ordering suffix corresponds to the desired tape and reel quantity or cut tape availability to align with manufacturing processes.

Selection Notes

Select this component when a 5 V logic interface is required for 1-of-8 signal selection. The SN74CBT3251DBR is appropriate for designs needing low on-resistance and fast switching speeds. Compare against the SN74CBTLV3251 series if lower voltage operation below 3.6 V is necessary. Ensure the application environment stays within the specified -40°C to +85°C temperature limits.

Part Context

This part belongs to the SN74CBT3251 family of 1-of-8 FET multiplexers and demultiplexers manufactured by Texas Instruments. The family offers various package configurations including DBQR, D, and R variants. These components are designed for high-performance digital signal switching applications requiring low distortion and fast response times.

Replacement Considerations

The SN74CBT3251DBQR is a documented substitute within the same manufacturer lineup.