SN74CBTD3861DBQR

Overview

The SN74CBTD3861DBQR is a 5-V, 1:1 (SPST), 10-channel general-purpose FET bus switch with level shifting manufactured by Texas Instruments. It is housed in a 24-SSOP package and operates within a temperature range of -40°C to 85°C. This component functions as a digital bus switch IC designed for high-speed data transmission applications requiring voltage level translation between different logic domains.

Feature Summary

• Integrates ten independent single-pole single-throw (SPST) FET switches for bidirectional data flow control.
• Provides active level-shifting capability to translate signals between varying voltage domains.
• Designed for high-frequency operation with fast edge rates suitable for modern digital interfaces.

Applications

• High-speed data bus switching in portable electronic devices
• Level shifting between different logic voltage standards in system interconnects
• Signal routing in consumer electronics and industrial control systems

Procurement Notes

Verify the specific package variant, as the DBQR suffix denotes a tape-and-reel configuration in a 24-SSOP housing. Confirm that the required operating voltage aligns with the 5-V specification. Ensure the design accounts for the moisture sensitivity level indicated in the datasheet. Cross-reference the manufacturer part number against authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when ten independent channels are required for bus switching with integrated level translation at 5-V logic levels. The 24-SSOP package offers a compact solution for space-constrained designs. Consider the propagation delay and on-resistance specifications if signal integrity is critical. Compare with standard bus switches lacking level-shifting features if voltage domain translation is not necessary for the application.

Part Context

This device belongs to the SN74CBT series of low-voltage CMOS bus switches. It complements other variants like the SN74CBT3861 by adding level-shifting functionality. The family is designed for high-speed applications where signal integrity and low power consumption are priorities. It serves as a bridge between different voltage domains in complex digital systems.

Replacement Considerations

• SN74CBTD3861PWR

FAQ

Does the SN74CBTD3861DBQR support bidirectional data transfer?

Yes, the internal FET switches allow for bidirectional data flow between the A and B ports.

What is the primary function of the level-shifting feature in this IC?

The level-shifting feature enables the translation of signal voltages from one logic domain to another, facilitating communication between components operating at different supply voltages.