FSTU3253QSC

Overview

The FSTU3253QSC is a dual 4:1 multiplexer/demultiplexer bus switch manufactured by Fairchild Semiconductor. It operates within an extended temperature range of -40°C to +85°C and utilizes a 16-pin QSOP package. The device features true output logic and three-state outputs, supporting CMOS technology with two line inputs and eight line outputs per function.

Feature Summary

• Dual 4:1 Multiplexer/Demultiplexer Bus Switch architecture
• Three-state output capability for high-impedance isolation
• True output logic configuration

Applications

• Bus switching applications requiring signal routing
• Multiplexing data lines in digital systems
• Demultiplexing signals to multiple destinations

Procurement Notes

Verify the manufacturer origin, as Rochester Electronics also lists this part number. Confirm the specific package type (QSOP) matches your design requirements. Ensure the operating temperature range meets your environmental specifications. Check for any ordering suffixes that might indicate different packaging or variants.

Selection Notes

Select this component when a dual 4:1 mux/demux function is required in a compact QSOP package. Consider the three-state output feature for bus isolation needs. Verify compatibility with your system's voltage levels and logic families. Ensure the -40°C to +85°C temperature range suits your application environment.

Part Context

This component belongs to the 3253 series of multiplexer and demultiplexer devices. It is categorized under logic integrated circuits, specifically functioning as a bus switch. The device is designed for digital signal routing and selection tasks in electronic systems.

Replacement Considerations

Check for exact pin-compatible substitutes from the same manufacturer or other vendors offering identical logical functions and package dimensions. Verify electrical characteristics match before substitution.