FST16233MEA

Overview

The FST16233MEA is a 16-bit to 32-bit high-speed CMOS TTL-compatible multiplexer/demultiplexer bus switch manufactured by onsemi. It features a low on-resistance of 4Ω between ports, enabling direct input-to-output connections without adding propagation delay or generating additional ground bounce noise. The device operates with minimal propagation delay and low supply current (ICC). In flow-through mode, it provides zero bounce functionality. Control inputs are compatible with TTL logic levels, ensuring seamless integration into standard digital systems requiring high-speed data routing.

Feature Summary

• Low on-resistance allows direct signal path connection without added propagation delay or ground bounce noise generation
• TTL-compatible control inputs ensure compatibility with standard logic families
• Zero bounce operation in flow-through mode maintains signal integrity during switching

Applications

• High-speed data bus switching in computer systems
• Multiplexing/demultiplexing applications in telecommunications equipment
• Signal routing in industrial control systems

Procurement Notes

Verify the manufacturer marking matches onsemi specifications. Confirm the package type corresponds to the MEA suffix variant. Check for authenticity markers consistent with Fairchild/ON Semiconductor production standards. Ensure storage conditions comply with moisture sensitivity level requirements for surface-mount devices. Validate that the component date code aligns with current supply chain availability.

Selection Notes

Select this component when designing circuits requiring 16-bit wide bus switching with minimal signal distortion. The 4Ω on-resistance is suitable for maintaining signal quality in high-frequency applications. Consider the TTL-compatible control interface if interfacing with legacy logic families. Evaluate the zero-bounce feature necessity for critical timing applications where signal glitches must be avoided during state transitions.

Part Context

This part belongs to the FST series of high-speed CMOS bus switches originally developed by Fairchild Semiconductor and now produced by onsemi following their acquisition. The series is designed for applications demanding fast switching speeds and low power consumption. The FST16233 specifically addresses the need for wide-data-path multiplexing in modern digital electronics.

Replacement Considerations

Direct substitutes include the FST16233 and FST16233MTD from the same manufacturer family. Verify pinout compatibility and electrical characteristics before substitution. Cross-reference with other 16-bit bus switches only if specific performance parameters differ significantly.