74FST3257MNTWG

Overview

The 74FST3257MNTWG is a quad 2:1 multiplexer/demultiplexer bus switch manufactured by onsemi. It operates within a supply voltage range of 4V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device is housed in a TSSOP-24 package. This component belongs to the 74FST logic series, designed for high-speed signal routing applications requiring low on-resistance and minimal propagation delay.

Feature Summary

• Provides four independent bidirectional switches for signal routing
• Features low on-resistance to minimize signal attenuation
• Supports both multiplexer and demultiplexer configurations

Applications

• High-speed data bus switching
• Signal path selection in digital systems
• Multiplexing control lines

Procurement Notes

Verify end-of-life status before design finalization as this part may be obsolete. Confirm package compatibility with existing PCB footprints. Check for qualified replacement components from other manufacturers if supply continuity is required. Ensure voltage levels match system requirements.

Selection Notes

Select this component for applications requiring multiple bidirectional switches in a compact surface-mount package. Consider the 4V to 5.5V supply range when designing power rails. Evaluate thermal performance within the specified operating temperature range. Compare pinout compatibility with alternative devices if sourcing constraints exist.

Part Context

This device is part of onsemi's 74FST family of high-speed CMOS logic products. The FST series is engineered for improved performance over standard TTL-compatible logic, offering faster switching speeds and lower power consumption. It serves as a solution for managing multiple signal paths in complex digital circuits.

Replacement Considerations

Direct substitutes include the 74FST3257DR2G. Other compatible options may include equivalent quad 2:1 mux/demux devices from Nexperia or Texas Instruments, provided pinouts and electrical characteristics are verified.