SN74CB3Q3257DGVR

Overview

The SN74CB3Q3257DGVR is a Texas Instruments automotive-grade quad 2-to-1 FET bus switch housed in a 16-TVSOP package. It operates on a single power supply ranging from 2.3 V to 3.6 V and supports an extended industrial temperature range of -40°C to +85°C. The device features four independent SPDT switches with propagation delays as low as 0.2 ns, designed for high-speed signal routing in automotive applications.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 standards
• Low-voltage operation suitable for modern embedded systems
• High-speed switching capability with minimal signal distortion

Applications

• SPI-based flash memory expansion
• Automotive infotainment system signal routing
• Data acquisition systems requiring multiplexing

Procurement Notes

Verify the specific suffix 'DGVR' corresponds to the TVSOP-16 package and tape-and-reel orientation. Confirm RoHS compliance status through official documentation. Ensure the component meets AEC-Q100 requirements for your specific automotive application tier before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring multiple independent 2:1 signal paths within a compact surface-mount footprint. It is appropriate for designs needing low voltage compatibility and high-speed performance in constrained spaces. Consider thermal management and board layout constraints associated with the TVSOP-16 package dimensions.

Part Context

This part belongs to the SN74CB3Q series, which represents Texas Instruments' line of automotive-qualified logic switches. These components are engineered to replace standard commercial logic devices in environments demanding higher reliability and stricter qualification standards, ensuring consistent performance across varying automotive operating conditions.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as the SN74CB3T3257DGVR, noting that non-Q parts may lack automotive qualification. Verify package compatibility and electrical specifications against current design requirements before substitution.