SN74CBT3306D

Overview

The SN74CBT3306D is a dual FET bus switch from the Texas Instruments CBT logic series, housed in an 8-pin SOIC package. It features a 1 x 1:1 configuration with two independent circuits. The device operates within a supply voltage range of 4 V to 5.5 V and supports a maximum low-level output current of 128 mA and a maximum high-level output current of -128 mA. Key electrical parameters include a maximum on-resistance of 14 Ω and a propagation delay of 0.35 ns at 4 V with a 50 pF load. It functions reliably across an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Dual FET bus switch architecture providing two independent signal paths
• Low on-resistance for efficient signal transmission
• High drive capability supporting significant output currents
• Fast switching speed suitable for high-frequency applications

Applications

• Portable equipment requiring low power consumption
• Consumer electronics utilizing CMOS and NMOS logic
• Memory module data routing and switching

Procurement Notes

Verify the specific suffix 'D' corresponds to the standard SOIC-8 package when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to procurement. Ensure the component meets the required operating temperature specifications for the intended environment.

Selection Notes

Select this component for designs requiring a single-supply operation between 4 V and 5.5 V. It is appropriate for applications needing fast propagation delays and high drive strength. Consider alternative packages if space constraints require smaller footprints, such as VSSOP variants within the same family.

Part Context

This part belongs to the Texas Instruments SN74CBT3306C family of digital bus switches. These devices are designed for low-voltage applications and offer improved performance over previous generations. The family includes various packaging options and voltage variants to suit different system requirements.

Replacement Considerations

SN74CBT3306CDR offers the same functionality in a tape-and-reel SOIC-8 package. SN74CBTD3306D provides similar switching capabilities with additional undershoot protection features.