SN74CBTD3306PWRG4

Overview

The SN74CBTD3306PWRG4 is a dual FET bus switch manufactured by Texas Instruments, belonging to the CBTD logic series. It features a 1 x 1:1 configuration with two independent circuits housed in an 8-pin TSSOP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40 °C to +85 °C. Key electrical parameters include a maximum on-resistance of 35 Ω, a maximum high-level output current of -128 mA, and a maximum low-level output current of 128 mA. Propagation delay is specified at 0.25 ns under a 5 V supply condition.

Feature Summary

• Integrates level shifting functionality for signal compatibility across different voltage domains.
• Includes protection against undershoot voltages down to -2 V to ensure signal integrity.
• Utilizes dual FET architecture to provide low on-resistance for efficient data transmission.

Applications

• High-speed data bus switching applications
• Voltage domain translation between digital components
• Portable equipment requiring low power consumption

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and green material status as per manufacturer documentation. Confirm the package type corresponds to the 8-TSSOP variant rather than other available packages like SOIC or VSSOP. Ensure the component status is checked against current production notices, as availability may vary based on lifecycle management updates.

Selection Notes

Select this component when a dual-channel bus switch with integrated level shifting is required for 5V systems. The CBTD series offers lower on-resistance compared to standard CBT counterparts. Verify that the 4.5V to 5.5V supply range aligns with the system design requirements. Consider the TSSOP package dimensions if board space is constrained relative to larger SOIC options.

Part Context

This part belongs to the Texas Instruments SN74CBTD3306 family of digital bus switches. The 'G4' suffix typically denotes lead-free and RoHS-compliant manufacturing. It serves as a specialized switch for managing bidirectional data flow in complex digital circuits, distinct from the standard SN74CBT3306 which lacks the advanced level-shifting features.

Replacement Considerations

SN74CBTD3306DR is a documented equivalent offering identical functional specifications in an 8-SOIC package. SN74CBTD3306CDR provides the same performance characteristics in a tape-and-reel format. Verify pinout compatibility and thermal performance when substituting between TSSOP and SOIC footprints.