FST16861MTD

Overview

The FST16861MTD is a dual 10-bit bus switch manufactured by onsemi, housed in a TSSOP-48 package. It provides 20 bits of high-speed CMOS switching with low on-resistance and minimal propagation delay. The device features two independent control inputs (OE#1 and OE#2) that enable connection between port 1A/1B and port 2A/2B when active low. When controls are high, the ports enter a high-impedance state. It operates within standard temperature ranges and supports TTL-compatible control input levels.

Feature Summary

• Dual 10-bit architecture providing 20-bit total switching capability
• Low on-resistance for efficient signal transmission without added delay
• Independent output enable controls for flexible port management
• High-impedance state isolation when outputs are disabled

Applications

• High-speed data bus switching in computing systems
• Signal routing in portable electronic devices
• Interface bridging between different voltage domains
• Memory expansion bus configuration

Procurement Notes

Verify the specific suffix 'MTD' against official onsemi documentation to confirm the exact tape-and-reel packaging quantity and moisture sensitivity level. Ensure the component matches the TSSOP-48 footprint dimensions and pinout configuration required by your PCB design. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before procurement.

Selection Notes

Select this component when a dual 10-bit bus switch with low on-resistance and high speed is required. It is suitable for applications needing independent control of two 10-bit buses. Consider the TSSOP-48 package size constraints and the need for TTL-compatible control signals. Verify that the operating voltage range and temperature specifications meet the system requirements.

Part Context

This part belongs to the FST series of fast bus switches from onsemi, designed for high-performance digital applications. The FST16861 variant specifically offers 20-bit switching capacity. It is commonly used in systems requiring efficient data path management with minimal signal degradation. The series is known for its compatibility with various logic families and low power consumption characteristics.

Replacement Considerations

Check for direct replacements such as the FST16861 in other packages or from compatible manufacturers like Nexperia or Texas Instruments. Ensure functional equivalence regarding bit width, on-resistance, and control logic. Verify pin-to-pin compatibility if substituting in an existing design.