FST16212MEAX

Overview

The FST16212MEAX is a high-speed CMOS bus switch manufactured by Fairchild Semiconductor. It provides 24 bits of bidirectional switching capability, organized as twelve independent 2-to-2 switches. The device features TTL-compatible inputs and outputs, ensuring seamless integration with standard logic families. Designed for surface-mount applications, it utilizes a 56-pin Bulk Small Outline Package (BSSOP) with a width of 7.50mm. The low on-resistance of the internal switches allows for efficient signal transmission with minimal voltage drop.

Feature Summary

• Provides 24-bit bidirectional bus switching functionality
• Features TTL-compatible input and output levels
• Utilizes low on-resistance switches for signal integrity
• Designed for high-speed CMOS applications

Applications

• High-speed data bus switching in computing systems
• Signal routing in telecommunications equipment
• Bidirectional level shifting between different logic domains

Procurement Notes

Verify the specific package variant, as datasheets may reference BSSOP or SSOP configurations. Confirm lead times and availability directly with authorized distributors, as supply chain conditions fluctuate. Ensure the component meets RoHS compliance requirements if specified for your project. Cross-reference the manufacturer part number with current equivalents from ON Semiconductor, which acquired Fairchild's logic business.

Selection Notes

Select this component when a high-density solution for 24-bit bidirectional switching is required. The 56-pin package offers a compact footprint suitable for space-constrained designs. Consider the TTL compatibility if interfacing with legacy logic standards. Evaluate the on-resistance specifications against your signal integrity requirements to ensure adequate performance at target operating frequencies.

Part Context

This component belongs to the FST series of high-speed CMOS bus switches. The series is characterized by low on-resistance and fast propagation delays, making it suitable for modern digital interfaces. Fairchild Semiconductor developed these devices to address the need for efficient signal routing in complex electronic systems requiring multiple bidirectional channels.

Replacement Considerations

Check for equivalents from ON Semiconductor following the acquisition of Fairchild's logic portfolio. Verify pinout compatibility and electrical characteristics before substitution. Alternative manufacturers may offer similar 24-bit bus switches in different package styles.