SN74CB3T3306DCTR

Overview

The SN74CB3T3306DCTR is a dual FET bus switch manufactured by Texas Instruments, belonging to the 74CB series. It features a single 1:1 configuration with two independent bidirectional channels housed in an 8-SSOP package. The device operates on a single power supply ranging from 2.3 V to 3.6 V and supports data rates up to 660 Mbps. Key electrical characteristics include a maximum on-resistance of 9 ohms and a propagation delay of 200 ps at 5 V. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing two independent bidirectional signal paths for efficient space utilization.
• High-bandwidth capability supporting data transfer rates up to 660 Mbps for high-speed applications.
• Integrated level shifting functionality enabling seamless voltage translation between different logic domains.
• Low on-resistance design ensuring minimal signal attenuation and reduced power dissipation during operation.

Applications

• Portable equipment requiring low-voltage operation and compact form factors
• Consumer electronics utilizing multiple voltage domains
• Communication systems needing high-speed signal routing

Procurement Notes

Verify the specific suffix 'CTR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 8-SSOP package dimensions align with the target PCB footprint and soldering profile specifications. Ensure the component meets RoHS compliance standards relevant to the manufacturing region. Cross-reference the manufacturer's latest datasheet to validate current production status and any potential product change notifications affecting the part number.

Selection Notes

Select this component when designing circuits that require bidirectional switching between 2.5-V and 3.3-V domains. The low on-resistance makes it suitable for maintaining signal integrity in high-speed digital buses. Consider the 8-SSOP package size if board space is constrained. Verify that the operating voltage range of 2.3 V to 3.6 V matches the system power supply rails. Evaluate the propagation delay against the timing requirements of the connected interfaces.

Part Context

This device is part of Texas Instruments' 74CB family of bus switches, designed for low-voltage applications. It serves as a solution for managing signal routing in complex digital systems where multiple voltage levels coexist. The family emphasizes high bandwidth and low power consumption, making it ideal for modern portable and consumer electronic devices.

Replacement Considerations

SN74CB3T3306DCUR is a verified substitute offering identical electrical performance in a reel package format. SN74CB3Q3306ADCUR provides similar functionality but utilizes a VSSOP-8 package instead of SSOP. SN74CBTD3306DR is a discontinued alternative with comparable specifications but operates at a higher voltage range of 4.5 V to 5.5 V.