SN74CB3Q3257PWG4

Overview

The SN74CB3Q3257PWG4 is a quad 1-of-2 FET multiplexer/demultiplexer from Texas Instruments, designed for low-voltage applications. It operates within a supply voltage range of 2.3 V to 3.6 V, supporting both 2.5-V and 3.3-V systems. The device features four independent switches with propagation delays typically around 0.2 ns at 2.7 V. It is housed in a 16-TSSOP package and functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Provides four independent bidirectional bus switches for signal routing
• Supports low-voltage operation compatible with 2.5-V and 3.3-V systems
• Features high bandwidth and low on-resistance for efficient data transmission

Applications

• Portable equipment requiring low-power signal switching
• Consumer electronics utilizing low-voltage logic interfaces
• Computing products needing high-speed data path selection

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and green material status as per Texas Instruments documentation. Confirm the package type matches the required 16-TSSOP footprint for PCB layout. Ensure the operating voltage requirements align with the 2.3 V to 3.6 V specification before integration into the design.

Selection Notes

Select this component when designing circuits that require multiple independent signal paths in a compact surface-mount package. It is suitable for applications demanding low power consumption and fast switching speeds within low-voltage domains. Consider the thermal performance and pin configuration during the initial schematic capture phase.

Part Context

This part belongs to the SN74CB3Q series of high-performance bus switches. It shares functional similarities with other members like the SN74CB3Q3251 but offers a different channel configuration. The device is engineered to replace older generation logic families while maintaining compatibility with standard digital interfaces.

Replacement Considerations

Direct substitutes include SN74CB3Q3257PW or SN74CB3Q3257DGVR. Verify pinout compatibility and electrical specifications against the original datasheet before substitution.