SN74CBT3253DBRG4

Overview

The SN74CBT3253DBRG4 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, with a typical operating voltage of 5 V. The device features two independent channels, each configured as a 2 x 1:4 switch. Key electrical parameters 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 supports a bandwidth of 200 MHz and has a maximum quiescent current of 3 uA. The component is rated for an operating temperature range from -40°C to +85°C and is housed in a 16-pin SSOP package.

Feature Summary

• Dual-channel architecture providing two independent 1-of-4 multiplexing paths
• Low on-resistance characteristic ensuring minimal signal attenuation
• High-speed switching capability suitable for data-intensive applications
• Low power consumption design with minimal quiescent current draw

Applications

• Portable equipment requiring efficient signal routing
• Consumer electronics utilizing high-speed data buses
• Industrial control systems needing reliable multiplexing
• Telecommunications infrastructure components

Procurement Notes

Verify the complete part number including the G4 suffix to ensure compliance with specific environmental standards such as RoHS directives. Confirm the package type matches the required PCB footprint, specifically the 16-SSOP configuration. Check for moisture sensitivity levels and recommended soldering profiles during assembly. Ensure the supply voltage requirements align with the target system's power rails before integration.

Selection Notes

Select this component when dual independent 1-of-4 switching is required within a single package. It is suitable for designs operating at 5 V logic levels. Consider the SSOP package size constraints against available board space. Evaluate the 12 ohm on-resistance against signal integrity requirements for the specific application bandwidth.

Part Context

This device belongs to the SN74CBT3253C series of high-speed CMOS multiplexer switches. It is part of Texas Instruments' broader portfolio of logic ICs designed for signal routing and switching applications. The G4 suffix typically indicates lead-free and RoHS-compliant manufacturing variations within the same functional family.

Replacement Considerations

The SN74CBT3253DBR is the non-RoHS compliant equivalent with identical electrical specifications and pinout. Verify compatibility if transitioning between RoHS and non-RoHS versions in existing designs.