SN74CBTS3384DBLE

Overview

The SN74CBTS3384 is a 10-bit FET bus switch with Schottky diode clamping, organized as two independent 5-bit switches. It operates within a supply voltage range of 4 V to 5.5 V and supports an operating temperature from -40°C to 85°C. The device features TTL-compatible input levels and low on-state resistance (typically 7 Ω at 5 V). Propagation delay is typically 0.25 ns at 5 V with a 50 pF load.

Feature Summary

• Provides high-speed bus switching with minimal propagation delay due to low on-state resistance.
• Integrates Schottky diodes on I/Os to clamp undershoot voltages.
• Features separate output-enable inputs for independent control of each 5-bit switch section.

Applications

• High-speed data routing in digital systems
• Bus bridging between different logic families
• Signal path selection in communication equipment

Procurement Notes

Verify the specific package type (e.g., TSSOP, SSOP) and ordering suffix against the official TI datasheet or package addendum. Confirm RoHS compliance and moisture sensitivity level ratings prior to procurement. Ensure all unused control inputs are tied to VCC or GND during operation.

Selection Notes

Select based on required channel count and package constraints. Verify that the supply voltage matches the 4 V to 5.5 V range. Consider thermal impedance values if operating near maximum temperature limits. Check for availability of tape-and-reel versus tube packaging options.

Part Context

Part of the SN74CBTS3384 family of 10-bit FET bus switches. Designed for applications requiring fast switching speeds and robust signal integrity with built-in protection against undershoot events through integrated Schottky diodes.

Replacement Considerations

Check TI's product change notification (PCN) for status updates. Verify pinout compatibility and electrical characteristics before substituting with other 10-bit bus switches from Texas Instruments or third-party manufacturers.

FAQ

What is the function of the Schottky diodes in this device?

The Schottky diodes clamp undershoot voltages on the I/O pins to protect the internal circuitry from negative voltage spikes.

How are the ten bits organized?

The device is organized as two independent 5-bit bus switches, each with its own output-enable (OE) input.