SN74CBT3383DBQR

Overview

The SN74CBT3383DBQR is a digital bus switch IC manufactured by Texas Instruments, belonging to the 74CBT series. It features a 5 x 2:2 circuit configuration housed in a 24-SSOP package with a width of 0.154 inches (3.90mm). The device operates on a single power supply ranging from 4.5V to 5.5V and supports an operating temperature range of -40°C to +85°C. Key electrical specifications include a maximum propagation delay of 6.4 ns and a maximum on-resistance of 7 Ohms. The component is supplied in tape and reel packaging and complies with RoHS3 standards.

Feature Summary

• Functions as a bus FET exchange switch with a 5 x 2:2 circuit topology for signal routing.
• Operates within a standard 5V logic voltage range suitable for general-purpose digital applications.
• Provides low on-resistance characteristics to maintain signal integrity during data transmission.

Applications

• Data bus switching in consumer electronics
• Signal routing in industrial control systems
• Interface management in computing hardware

Procurement Notes

Verify the specific ordering suffix 'DBQR' to confirm the 24-SSOP package and tape-and-reel shipping format. Ensure the design requires the 4.5V to 5.5V supply voltage range rather than low-voltage alternatives. Confirm that the 7 Ohm on-resistance meets the system's impedance requirements. Check for RoHS3 compliance if environmental regulations apply. Validate the -40°C to +85°C industrial temperature rating against the intended operational environment.

Selection Notes

Select this component when a 5V logic interface requires a compact bus exchange solution. The 24-SSOP package offers a space-efficient footprint for surface-mount assembly. Consider the 6.4 ns propagation delay for timing-sensitive applications. Compare against the SN74CBTLV3383 series if lower voltage operation between 2.3V and 3.6V is necessary instead of the standard 5V requirement.

Part Context

This part belongs to the Texas Instruments 74CBT series of high-speed CMOS logic devices. These components are designed for low-voltage and 5V applications, offering fast switching speeds and low power consumption. The SN74CBT3383 variant specifically addresses the need for multi-channel bus switching in systems requiring reliable data path management.

Replacement Considerations

The SN74CBT3383CDBQR is documented as a parameter-equivalent substitute. Verify pin compatibility and electrical specifications before implementation.