SN74CBTS3384DBRE4

Overview

The SN74CBTS3384DBRE4 is a 10-bit FET bus switch manufactured by Texas Instruments, housed in a 24-pin TSSOP package. It features Schottky diode clamping on the I/Os to prevent undershoot. The device operates with a supply voltage range of 4 V to 5.5 V and supports an operating temperature from -40°C to 85°C. It consists of two independent 5-bit bus switches, each controlled by separate output-enable (OE) inputs. Key electrical characteristics include a maximum on-state resistance of 20 ohms at VCC = 4 V and a typical propagation delay of 0.25 ns at VCC = 5 V.

Feature Summary

• Provides ten bits of high-speed TTL-compatible bus switching capability
• Integrates Schottky diodes on the I/Os to clamp undershoot voltages
• Organized as two independent 5-bit bus switches with separate OE controls

Applications

• High-speed data bus routing applications
• TTL-compatible signal path switching
• System board interconnect management

Procurement Notes

Verify that the specific ordering suffix 'E4' corresponds to the required lead-free and RoHS-compliant configuration for your project specifications. Confirm the package type matches the 24-pin TSSOP outline provided in the datasheet. Ensure the supply voltage requirements align with the recommended operating conditions of 4 V to 5.5 V. Check for any specific moisture sensitivity level (MSL) handling requirements during assembly.

Selection Notes

Select this component when a 10-bit bus switch with Schottky clamping is required for TTL-compatible systems. The dual 5-bit organization allows for flexible control of separate data paths using independent OE inputs. Consider the low on-state resistance and fast propagation delay for high-speed signal integrity. Verify that the 24-pin TSSOP package fits within the available PCB footprint constraints.

Part Context

This part belongs to the SN74CBTS3384 family of 10-bit FET bus switches. The family offers variations in packaging options including SOIC, SSOP, and TVSOP, alongside the TSSOP variant. These devices are designed for applications requiring high-speed switching with minimal signal distortion. The E4 suffix typically indicates environmental compliance features such as lead-free construction.

Replacement Considerations

Direct replacements must maintain the 10-bit configuration, 24-pin TSSOP package, and Schottky clamping feature. Verify compatibility with the 4 V to 5.5 V supply range and -40°C to 85°C operating temperature. Ensure the replacement device supports independent OE control for the two 5-bit sections.