FST3384MTC

Overview

The FST3384MTC is a 10-bit low power bus switch manufactured by onsemi, housed in a 24-lead Thin Shrink Small Outline Package (TSSOP). It provides high-speed CMOS TTL-compatible switching with an on-resistance of 4 ohms. The device features two independent 5-bit switches controlled by separate OE signals. Operating conditions include a supply voltage range of 4.0V to 5.5V and a free air operating temperature from -40°C to +85°C.

Feature Summary

• Provides 10 bits of high-speed CMOS bus switching with minimal propagation delay
• Features ultra-low quiescent supply current for energy efficiency
• Ensures zero ground bounce noise during flow-through mode operation
• Control inputs are compatible with standard TTL logic levels

Applications

• High-speed data bus interconnects
• Portable battery-powered equipment
• Consumer electronics requiring low power consumption
• Automotive infotainment systems

Procurement Notes

Verify the specific package variant when ordering, as the datasheet lists multiple options including SOIC and QSOP. Confirm that the suffix 'X' indicates tape and reel packaging if required for automated assembly. Ensure compatibility with the target system's voltage levels and temperature ranges before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring low insertion loss and high bandwidth. The dual 5-bit configuration allows flexible routing of parallel data lines. Consider the TSSOP package for space-constrained designs. Validate electrical characteristics against specific load capacitance requirements to ensure signal integrity.

Part Context

This device belongs to the Fairchild Switch family, which utilizes proven switch technology previously found in products like the 74LVX3L384. It serves as a low-power alternative to traditional logic buffers for bidirectional data transfer. The product line emphasizes high speed and low noise for modern digital interfaces.

Replacement Considerations

Check for updated part numbers due to the integration of Fairchild Semiconductor into ON Semiconductor. Verify pinout compatibility with existing PCB layouts. Ensure that any substitute maintains the same 4-ohm on-resistance and 24-lead TSSOP footprint.