FSTU3253MTC

Overview

The FSTU3253MTC is a dual 4:1 multiplexer/demultiplexer bus switch manufactured by Fairchild Semiconductor. It utilizes high-speed CMOS technology and maintains TTL compatibility for control inputs. The device features a low on-resistance of 4 ohms between ports, enabling signal connection without adding propagation delay or generating additional ground bounce noise. It operates with minimal power consumption and ensures zero bounce in flow-through mode.

Feature Summary

• Dual 4:1 multiplexer/demultiplexer architecture
• Low on-resistance for minimal signal degradation
• TTL-compatible control inputs
• Zero bounce operation in flow-through mode

Applications

• High-speed data routing
• Bus switching applications
• Signal path selection

Procurement Notes

Verify the specific manufacturer source, as Fairchild Semiconductor products are now managed under ON Semiconductor. Confirm the package type matches the required MTC (SSOP-16) specification. Ensure the component meets the necessary operating temperature ranges and electrical characteristics defined in the official datasheet before integration into the design.

Selection Notes

Select this component when a dual 4:1 mux/demux function is required with low insertion loss. The 4-ohm on-resistance makes it suitable for maintaining signal integrity in high-speed digital systems. Verify that the voltage levels and current requirements align with the system's power supply and load conditions.

Part Context

This part belongs to the FST3253 series of high-speed CMOS bus switches. It is designed to replace slower logic gates in data routing applications, offering faster switching speeds and lower power consumption. The dual configuration allows for independent control of two separate 4-to-1 multiplexing paths within a single package.