FST16232MTDX

Overview

The FST16232MTDX is a synchronous 16-bit to 32-bit multiplexer/demultiplexer bus switch manufactured by onsemi. It features a low on-resistance of 4Ω, enabling high-speed data transfer without adding propagation delay or ground bounce noise. The device supports two separate datapaths that can be multiplexed onto or demultiplexed from a single path using control select pins S1 and S0. These inputs are synchronous and clocked on the rising edge of CLK when CLKEN is LOW. It operates within a supply voltage range of 4.0V to 5.5V and is housed in a 56-lead Thin Shrink Small Outline Package (TSSOP).

Feature Summary

• Synchronous 16-bit to 32-bit multiplexing capability with minimal propagation delay.
• Low on-resistance switch connection between ports for efficient signal transmission.
• Control inputs compatible with TTL levels for versatile interface integration.

Applications

• High-speed data routing in digital systems.
• Multiplexing multiple data paths into a single output channel.
• Demultiplexing a single input path into multiple outputs.

Procurement Notes

Verify the specific ordering code suffix 'X' indicates tape and reel packaging as per Fairchild documentation. Confirm package type MTD56 corresponds to the 56-lead TSSOP variant. Ensure compatibility with recommended operating conditions including supply voltage and temperature ranges before procurement.

Selection Notes

Select this component for applications requiring synchronous bus switching with low insertion loss. Consider the 4Ω on-resistance and propagation delay specifications for high-speed signal integrity. Verify pinout compatibility with existing circuit designs, specifically the control logic requirements for S1, S0, CLK, and CLKEN signals.

Part Context

This device belongs to the Fairchild Switch family, derived from proven switch technology used in products like the FST3384. It is designed for high-speed CMOS applications requiring TTL-compatible control inputs. The part number FST16232MTDX specifies the thin shrink small outline package variant.

Replacement Considerations

Check datasheet for equivalent parts within the CBT/FST/QS/5C/B series. Verify pinout and electrical characteristics match the original design requirements before substitution.

FAQ

How are the control select pins configured?

The control select pins S1 and S0 are synchronous and clocked on the rising edge of CLK when CLKEN is LOW.

What is the maximum clock frequency?

The maximum clock frequency is 150 MHz under recommended operating conditions.