74FST6800QS

Overview

The onsemi 74FST6800QS is a high-performance, low-voltage CMOS bus switch designed for applications requiring fast signal transmission and minimal power consumption. It operates within a voltage range of 2.3 V to 3.6 V, ensuring compatibility with modern low-power digital systems. The device features extremely low on-resistance and negligible propagation delay, which helps maintain signal integrity across data buses. Its compact packaging options facilitate efficient board space utilization in dense electronic designs.

Feature Summary

• Ultra-low on-resistance minimizes signal attenuation and power loss during data transmission.
• Negligible propagation delay ensures high-speed switching capabilities for demanding digital interfaces.
• CMOS technology provides low static power consumption while maintaining TTL compatibility.

Applications

• High-speed data bus switching in portable consumer electronics
• Signal routing in memory subsystems and peripheral interconnects
• Level shifting and bus isolation in low-voltage logic circuits

Procurement Notes

Verify the specific suffix (QS) against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the ordering part number with authorized distributors to avoid obsolete or counterfeit stock. Confirm voltage ratings align with your system's operating conditions before procurement.

Selection Notes

Select this component when low voltage operation between 2.3 V and 3.6 V is required. Consider its low on-resistance for minimizing signal degradation in high-frequency applications. Evaluate package availability based on your PCB layout constraints. Compare propagation delays against other bus switches if timing-critical performance is essential for your design.

Part Context

This part belongs to the 74FST series of bus switches from onsemi, known for high-speed performance and low power consumption. It complements other devices like the 74FST3251 and FST3384MTCX in providing versatile signal routing solutions. The series supports various logic families and offers robust performance in compact packages suitable for modern electronic assemblies.

FAQ

Is the 74FST6800QS compatible with 5V logic levels?

No, it is designed for low-voltage operation between 2.3 V and 3.6 V. Using it with 5V signals may damage the device or cause malfunction.

What is the typical on-resistance of this bus switch?

The device exhibits extremely low on-resistance, though exact values depend on supply voltage and load conditions as specified in the official datasheet.