SN74CBT3253DBQR

Overview

The SN74CBT3253DBQR is a dual 1-of-4 FET multiplexer/demultiplexer manufactured by Texas Instruments. It operates on a single power supply ranging from 2.3 V to 3.6 V. The device features two independent switches, each selecting one of four inputs or outputs. Key electrical parameters include a maximum on-resistance of 8 ohms and a propagation delay of 6.1 ns. It supports an output current of up to 128 mA and functions within a temperature range of -40°C to +85°C. The component is housed in a 16-pin SSOP package.

Feature Summary

• Dual independent 1-of-4 switching configuration for signal routing
• Low on-resistance for minimal signal attenuation
• High output drive capability supporting substantial load currents
• Fast switching speeds suitable for high-frequency applications

Applications

• Portable equipment requiring low-voltage operation
• Battery-powered systems with limited power budgets
• Signal routing in consumer electronics
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'Q' indicates automotive qualification status as per manufacturer documentation. Confirm the package type matches the required PCB footprint. Ensure voltage levels align with the 2.3 V to 3.6 V operating range. Check RoHS compliance status for environmental regulations. Validate lead times and availability through authorized distributors.

Selection Notes

Select this component when a dual 1-of-4 mux/demux is needed in a low-voltage environment. Compare against standard voltage variants if system power exceeds 3.6 V. Consider package constraints regarding pin count and physical dimensions. Evaluate thermal performance requirements against the specified operating temperature range. Assess signal integrity needs against the on-resistance specifications.

Part Context

This part belongs to the SN74CBT series of low-voltage analog switches. It serves as a multiplexer/demultiplexer solution for digital and analog signals. The device complements other members of the family offering different channel counts or configurations. It is designed for applications requiring efficient signal management in compact form factors.

Replacement Considerations

SN74CBTLV3253DBQR is a direct equivalent variant within the same product line.