SN74CB3T3384PW

Overview

The SN74CB3T3384PW is a 10-bit FET bus switch designed for 2.5-V and 3.3-V low-voltage applications, featuring a 5-V-tolerant level shifter. It operates within a supply voltage range of 2.3 V to 3.6 V and supports an operating temperature range from -40°C to +85°C. The device utilizes a 24-pin TSSOP package. Key electrical specifications include a maximum on-resistance of 5 ohms and a maximum propagation delay of 250 ps. The maximum power supply current is 1.5 mA.

Feature Summary

• Integrates a 5-V-tolerant level shifter to facilitate interface between different voltage domains.
• Provides high-speed signal transmission with low on-state resistance for efficient data routing.
• Supports bidirectional data flow across ten independent channels.

Applications

• Mobile phone systems
• Personal digital assistants (PDAs)
• Portable computing equipment

Procurement Notes

Verify the specific suffix 'PW' confirms the TSSOP-24 package variant. Confirm RoHS compliance status via the manufacturer's official documentation. Check the lifecycle status as some listings indicate end-of-life or obsolescence schedules. Ensure the component matches the required 2.3-V to 3.6-V operating voltage range for your specific circuit design.

Selection Notes

Select this component when interfacing 2.5-V or 3.3-V logic with 5-V tolerant peripherals. The integrated level shifter eliminates external translation components. Consider the 24-TSSOP package constraints for PCB layout. Verify that the 5-ohm on-resistance meets the signal integrity requirements of the target application bandwidth.

Part Context

This part belongs to the SN74CB3T338x series of high-speed TTL-compatible FET bus switches. It is functionally related to variants such as SN74CB3T3383 and SN74CBTD3384, differing primarily in pinout configuration and specific tolerance features. The PW suffix denotes the plastic small-outline package type used in surface-mount assemblies.

Replacement Considerations

SN74CB3T3383PW is a documented substitute within the same family. Verify pin compatibility and functional equivalence before substitution. Other variants like SN74CBTD3384 may require schematic review due to potential differences in control logic or package types.

FAQ

What is the purpose of the level shifter in this device?

The level shifter allows the control inputs to be driven by 5-V signals while the bus operates at lower voltages like 2.5 V or 3.3 V, enabling seamless integration between different voltage domains.

Does the SN74CB3T3384PW support bidirectional data transfer?

Yes, the internal FET switches allow data to flow bidirectionally between the A and B ports when the enable signal is active.