SN74CB3Q3257PWE4

Overview

The SN74CB3Q3257PWE4 is a low-voltage, high-bandwidth bus switch manufactured by Texas Instruments. It functions as a 4-bit 1-of-2 FET multiplexer/demultiplexer designed for 2.5-V and 3.3-V applications. The device operates within a supply voltage range of 2.3 V to 3.6 V and supports an operating temperature range from -40°C to +85°C. It is housed in a 16-pin TVSOP package with a width of 4.40 mm. Key electrical characteristics include a propagation delay of 0.2 ns at 2.7 V and a load capacitance of 50 pF.

Feature Summary

• Provides four independent bidirectional data paths for signal routing between two buses.
• Features low on-resistance to minimize signal attenuation across the data channels.
• Supports simultaneous switching operation for efficient multi-bit data transfer.
• Designed for low-power consumption suitable for battery-operated portable equipment.

Applications

• Mobile phone and handheld computer motherboard systems
• Consumer electronics requiring low-voltage signal switching
• Portable computing devices such as laptops and tablets

Procurement Notes

Verify the specific suffix 'E4' indicates lead-free packaging compliant with RoHS standards. Confirm the package type is TVSOP-16 and ensure the operating temperature range meets the application requirements. Check for any recent product change notifications or lifecycle status updates directly from Texas Instruments documentation before finalizing procurement plans.

Selection Notes

Select this component when a low-voltage, high-speed multiplexer is required for 2.5-V or 3.3-V systems. Ensure the design accommodates the 2.3-V to 3.6-V supply voltage range. Consider the TVSOP-16 package dimensions for PCB layout constraints. Verify that the 0.2-ns propagation delay satisfies the timing requirements of the target interface.

Part Context

This part belongs to the SN74CB3Q3257 family of low-voltage bus switches. It is part of Texas Instruments' portfolio of logic ICs focused on signal integrity and power efficiency. The device is engineered to replace higher-voltage alternatives in modern low-power digital designs, offering improved performance in compact form factors typical of contemporary consumer electronics.

Replacement Considerations

SN74CB3Q3257PW

FAQ

What is the maximum supply voltage for the SN74CB3Q3257PWE4?

The maximum supply voltage (VCC) for this device is 3.6 V.

Does the SN74CB3Q3257PWE4 support bidirectional data flow?

Yes, the device provides four independent bidirectional data paths.