74FST3253D

Overview

The onsemi 74FST3253D is a high-speed quad 2-input multiplexer/demultiplexer belonging to the 74FST logic family. It operates on a single power supply ranging from 4V to 5.5V and supports data rates up to 200 Mbps. The device features low ON resistance and low input capacitance, ensuring minimal signal distortion. It is housed in a 16-pin TSSOP package with an operating temperature range of -40°C to 85°C.

Feature Summary

• Provides four independent 2-to-1 multiplexing channels for efficient signal routing
• Supports high-speed data transmission with low propagation delay characteristics
• Features low ON resistance to maintain signal integrity across loads
• Operates reliably within a wide industrial temperature range

Applications

• High-speed data bus switching and routing
• Signal selection in communication systems
• Data acquisition systems requiring fast channel switching
• Video signal routing applications

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape/reel specifications. Confirm RoHS compliance status through manufacturer documentation. Check for active lifecycle status as legacy FST parts may have limited availability. Ensure ESD handling protocols are followed during assembly.

Selection Notes

Select this component when multiple 2-input signals require rapid, low-distortion switching within a 5V system. Compare propagation delays and ON resistance against alternative FST series devices. Verify pin compatibility if replacing existing designs. Consider thermal performance for dense PCB layouts.

Part Context

This part belongs to the 74FST (Fast Schottky TTL) family, designed for high-speed digital applications. It complements other FST multiplexers like the 74FST3257 by offering quad configuration. The series focuses on reducing power consumption while maintaining speed comparable to older F/TTL technologies.

Replacement Considerations

Check for direct pin-compatible alternatives such as the 74FST3253 from other manufacturers. Verify electrical parameters including VCC range and drive strength. Ensure package dimensions match existing footprints. Review lifecycle notices for end-of-life products.