SN74CBT3253CDBQR

Overview

The SN74CBT3253CDBQR is a dual 1-of-4 FET multiplexer/demultiplexer switch IC manufactured by Texas Instruments. It operates within a supply voltage range of 4 V to 5.5 V and features an SSOP-16 surface-mount package. The device supports two independent channels, each configured as a 2 x 1:4 circuit. Key electrical specifications include a maximum on-resistance of 12 ohms, a maximum propagation delay of 6.7 ns, and a maximum turn-off time of 6.1 ns. It functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing two independent 1-of-4 multiplexing paths
• Low on-resistance for minimal signal attenuation in analog and digital applications
• High-speed switching capability with low propagation delay
• Single-supply operation compatible with standard logic levels

Applications

• Portable equipment requiring low power consumption
• Cellular phones and wireless communication devices
• LCD monitor signal routing
• Video signal switching systems

Procurement Notes

Verify the specific suffix 'CDBQR' against the manufacturer's official documentation to confirm the exact reel quantity and tape-and-reel specifications. Ensure that the SSOP-16 footprint matches the target PCB design. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly planning.

Selection Notes

Select this component when a compact solution for dual 1-of-4 signal routing is required. It is suitable for designs needing low on-resistance and fast switching speeds within a 4V to 5.5V supply range. Consider the SSOP-16 package constraints and thermal performance relative to the application environment.

Part Context

This part belongs to the SN74CBT3253C family of high-speed CMOS multiplexer switches. These devices are designed for battery-powered applications due to their low power characteristics. The family typically includes variants with different packaging options such as DBR and RGYR, offering flexibility for various board space requirements while maintaining consistent electrical performance.

Replacement Considerations

Check for direct pin-compatible alternatives within the same SN74CBT series, such as the SN74CBT3253CDR or SN74CBT3253DBR, ensuring identical package dimensions and electrical parameters before substitution.