FST16233MEA

Overview

The FST16233MEA is a synchronous 16-bit to 32-bit multiplexer/demultiplexer bus switch manufactured by Fairchild Semiconductor. It utilizes high-speed CMOS technology with TTL-compatible inputs. The device features a low on-resistance of 4Ω between ports, enabling signal connection without adding propagation delay or generating additional ground bounce noise. It supports two separate datapaths that can be multiplexed onto or demultiplexed from a single path using synchronous control select pins clocked on the rising edge of CLK when CLKEN is LOW.

Feature Summary

• Synchronous 16-bit to 32-bit multiplexer/demultiplexer functionality
• Low on-resistance switch connection between ports
• Minimal propagation delay through the switch
• Zero bounce in flow-through mode

Applications

• Multiplexing two separate datapaths onto a single path
• Demultiplexing a single path into two separate datapaths
• High-speed data routing in CMOS systems

Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor or its successor entity, ON Semiconductor, as product lines may have transitioned. Confirm the specific suffix MEA corresponds to the uncased chip die package format rather than a standard leaded package. Ensure compatibility with the required supply voltage range of 4V to 5.5V and check for RoHS compliance status given the age of the component series.

Selection Notes

Select this component for applications requiring synchronous bus switching with minimal signal distortion. The device is suitable where low ground bounce noise is critical. Verify that the system design accommodates the uncased die package if the MEA suffix indicates a bare die configuration. Ensure control signals meet the TTL level compatibility requirements for the synchronous select pins.

Part Context

The FST16233 belongs to the CBT/FST/QS/5C/B series of logic switches. It is functionally related to the FST16232 but configured for different mux/demux operations. The MEA suffix typically denotes a specific package variant, often an uncased die or specialized form factor, distinct from standard plastic packages like CW or MT.