FST3244WMX

Overview

The FST3244WMX is an 8-bit bus switch manufactured by onsemi, housed in a 20-lead Thin Shrink Small Outline Package (TSSOP). It operates within a supply voltage range of 4.0 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. The device features two independent four-bit switches with separate output enable inputs (/OE1 and /OE2), providing low on-resistance and minimal propagation delay for high-speed data routing.

Feature Summary

• Provides eight bits of high-speed CMOS bus switching with standard '244 pin-out compatibility
• Features low on-resistance to connect inputs to outputs without adding propagation delay or generating ground bounce noise
• Organized as two independent four-bit switches with separate control inputs for flexible port management

Applications

• High-speed data routing in digital systems
• Bus switching applications requiring low propagation delay
• Portable electronic devices utilizing standard logic pin-outs

Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to ensure correct package type and tape-and-reel specifications. Confirm that the component meets all required environmental and electrical standards for your specific application before procurement.

Selection Notes

Select this component when an 8-bit bus switch with standard '244 pin-out compatibility is required. Ensure the application voltage falls within the 4.0 V to 5.5 V range and that the operating temperature requirements are met by the -40°C to +85°C specification.

Part Context

This part belongs to the FST series of bus switches, designed for high-speed data transfer applications. It integrates CMOS technology with TTL-compatible control inputs, offering a compact solution for managing multiple data lines in space-constrained designs.

Replacement Considerations

Check for updated part numbers due to Fairchild Semiconductor integration into onsemi, where underscores may be replaced with dashes. Verify functional equivalence if substituting with other 8-bit bus switches.