FST16211MEA

Overview

The FST16211MEA is a 24-bit bus switch manufactured by onsemi, formerly Fairchild Semiconductor. It provides high-speed CMOS and TTL-compatible switching with an on-resistance of 4Ω to 7Ω at VCC=4.5V. The device operates within a supply voltage range of 4.0V to 5.5V and supports input voltages up to 5.5V. It features minimal propagation delay (0.25ns typical) and low quiescent current (3µA). The component is housed in a 56-lead Shrink Small Outline Package (SSOP), designated as MS56A.

Feature Summary

• Provides 24 bits of high-speed bus switching with minimal propagation delay
• Features low on-resistance for efficient signal connection without ground bounce noise
• Includes dual independent control inputs for flexible port configuration
• Compatible with TTL logic levels for straightforward interface integration

Applications

• High-speed data bus interconnects
• Portable electronic devices requiring low power consumption
• Consumer electronics utilizing CMOS/TTL interfaces
• System board signal routing applications

Procurement Notes

Verify the specific package variant when ordering, as the datasheet lists multiple options including FBGA and TSSOP. Confirm that the 'MEA' suffix corresponds to the SSOP package type. Ensure compliance with RoHS standards if required by your manufacturing process. Check for any recent part number updates due to the Fairchild Semiconductor integration into onsemi systems.

Selection Notes

Select this component for applications requiring bidirectional data transfer across multiple lines with low insertion loss. The wide operating temperature range makes it suitable for industrial environments. Consider the package size constraints, as the SSOP form factor offers a compact solution compared to larger packages. Evaluate the power supply requirements to ensure they align with the 4.0V to 5.5V operational window.

Part Context

This device belongs to the FST series of bus switches, which are designed for high-performance digital signal routing. The FST16211 specifically addresses the need for multi-bit switching in space-constrained designs. Its architecture allows for independent control of two 12-bit ports, providing flexibility in system design. The technology leverages proven CMOS processes to achieve fast switching speeds.

Replacement Considerations

Check for direct pin-to-pin replacements within the same FST family or equivalent 24-bit bus switches from other manufacturers. Verify that any substitute maintains the same voltage compatibility and package dimensions. Review the electrical characteristics to ensure similar on-resistance and propagation delay performance.