Texas Instruments

SN74ACT2235-20FN

SN74ACT2235-20FN Description

The SN74ACT2235-20FN is an asynchronous FIFO memory IC designed by Texas Instruments. This device offers a memory size of 18K (1K x 9 x 2) and operates within a supply voltage range of 4.5 V to 5.5 V. It features an access time of 25ns and supports a data rate of up to 50MHz. The SN74ACT2235-20FN is housed in a surface-mount 44-pin PLCC package and is suitable for operating temperatures ranging from 0°C to 70°C. Despite its obsolescence, it remains a reliable choice for applications requiring high-speed data buffering and storage.

SN74ACT2235-20FN Features

• Asynchronous Operation: The SN74ACT2235-20FN operates asynchronously, allowing for flexible data transfer without the need for a common clock signal. This feature is particularly beneficial in systems where clock synchronization is challenging or impractical.
• High-Speed Performance: With an access time of 25ns and a data rate of 50MHz, the SN74ACT2235-20FN ensures efficient data handling and minimal latency. This makes it ideal for applications requiring rapid data buffering and transfer.
• Programmable Flags: The device supports programmable flags, providing users with the ability to customize flag settings to suit specific application requirements. This flexibility enhances the device's adaptability in various electronic systems.
• Low Power Consumption: The SN74ACT2235-20FN has a maximum supply current of 400µA, making it suitable for applications where power efficiency is a priority. This low power consumption also contributes to reduced heat generation and improved system reliability.
• Robust Compliance: The SN74ACT2235-20FN meets REACH and RoHS3 compliance standards, ensuring it is free from hazardous substances and suitable for environmentally conscious applications. Additionally, it has a moisture sensitivity level (MSL) of 3, allowing for a 168-hour exposure to standard environmental conditions.

SN74ACT2235-20FN Applications

The SN74ACT2235-20FN is well-suited for a variety of applications that require efficient data buffering and storage. Some specific use cases include:

• Telecommunications: In communication systems, the SN74ACT2235-20FN can be used to buffer data between different transmission rates or protocols, ensuring smooth data flow and minimizing data loss.
• Data Acquisition Systems: The device's high-speed performance and asynchronous operation make it ideal for data acquisition systems where real-time data processing and storage are critical.
• Networking Equipment: The SN74ACT2235-20FN can be employed in networking devices to manage data traffic and buffer data packets, enhancing overall system performance and reliability.
• Industrial Automation: In industrial settings, the FIFO memory IC can be used to buffer data from sensors and control systems, ensuring timely and accurate data processing.

Conclusion of SN74ACT2235-20FN

The SN74ACT2235-20FN, despite being an obsolete model, remains a valuable component in the electronics industry due to its robust performance and unique features. Its asynchronous operation, high-speed data handling, and programmable flags make it a versatile choice for applications requiring efficient data buffering and storage. While newer models may offer additional features and improvements, the SN74ACT2235-20FN continues to provide reliable performance and is well-suited for a range of industrial and communication applications.