SN74CB3Q3257PWRG4

Overview

The SN74CB3Q3257PWRG4 is a low-voltage, high-bandwidth bus switch from Texas Instruments. It functions as a 4-bit 1-of-2 FET multiplexer/demultiplexer. The device operates within a supply voltage range of 2.3 V to 3.6 V. It features an AEC-Q100 qualified automotive grade variant. The component utilizes a TSSOP-16 surface-mount package. It supports bidirectional data transmission with configurable control inputs.

Feature Summary

• Automotive-grade qualification for reliable operation in vehicle environments
• Low on-resistance for minimal signal attenuation and power loss
• Configurable control pins allow flexible system integration

Applications

• Automotive infotainment systems
• Data acquisition modules
• Portable electronic devices requiring low-power switching

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and lead-free status per manufacturer documentation. Confirm the package type matches design requirements. Ensure ESD handling procedures are followed during assembly. Check for any recent product change notifications affecting specifications or packaging.

Selection Notes

Select this component when automotive reliability is required alongside low-voltage operation. Compare propagation delay and on-resistance against standard industrial grades. Verify that the 2.3 V minimum supply voltage aligns with the target system power rails. Consider pin compatibility with existing PCB layouts if replacing legacy parts.

Part Context

This part belongs to the SN74CB3Q series, designed for automotive applications. It shares functional similarities with the non-automotive SN74CB3T3257 but includes enhanced durability standards. The Q-series designation specifically denotes qualification under AEC-Q100 stress tests for long-term automotive use.

Replacement Considerations

SN74CB3Q3257PWR serves as a direct equivalent without the G4 suffix. SN74CB3Q3257DGVR offers the same functionality in a TVSOP-16 package.