FST16211MTD

Overview

The FST16211MTD is a 24-bit high-speed CMOS bus switch manufactured by onsemi, formerly Fairchild Semiconductor. It provides two independent 12-bit switches controlled by OE1 and OE2 inputs. The device features low on-resistance of 4Ω typical at VCC=5V, ensuring minimal propagation delay and zero bounce in flow-through mode. It operates within a supply voltage range of 4.0V to 5.5V and supports TTL-compatible control inputs. The MTD suffix denotes the 56-lead Thin Shrink Small Outline Package (TSSOP).

Feature Summary

• Provides 24 bits of high-speed CMOS bus switching with two independent 12-bit channels.
• Features low on-resistance for minimal propagation delay without adding ground bounce noise.
• Control inputs are compatible with TTL logic levels.
• Operates in zero bounce flow-through mode.

Applications

• High-speed data bus interconnects
• Portable equipment requiring low power consumption
• Systems utilizing TTL-compatible logic interfaces

Procurement Notes

Verify the package type matches the required footprint, as this part number specifically corresponds to the TSSOP variant. Confirm that the ordering code suffix aligns with the desired packaging format, noting that tray or tape-and-reel options may require specific suffixes such as 'G' or 'X'. Ensure compatibility with the system's operating voltage range of 4.0V to 5.5V before integration.

Selection Notes

Select this component when a high-density 24-bit bus switch is required with low insertion loss. The TSSOP package offers a compact solution for space-constrained designs. Verify that the application does not exceed the absolute maximum ratings for supply voltage or input current. Consider the low quiescent current if power efficiency is a critical design parameter.

Part Context

This device belongs to the FST16211 family of bus switches, which utilizes proven CMOS technology for high-speed signal transmission. Originally developed by Fairchild Semiconductor, the product line was integrated into onsemi's portfolio following corporate acquisition. The family includes variants in different packages, such as SSOP and FBGA, catering to diverse manufacturing needs.

Replacement Considerations

Check for updated part numbers due to the transition from Fairchild to onsemi naming conventions. The underscore character in original Fairchild codes has been replaced with a dash. Verify functional equivalence with other 24-bit bus switches if pinout compatibility is required.