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9403ASDMQB

9403ASDMQB Description

The 9403ASDMQB is a high-performance FIFO (First-In-First-Out) memory IC designed by National Semiconductor. This device is part of the 9403A series and is housed in a 24-lead ceramic dual in-line package (CDIP). It features a memory size of 64 bits (16 x 4), making it suitable for applications requiring moderate data buffering. The IC operates within a supply voltage range of 4.5 V to 5.5 V and has a maximum supply current of 170 mA. The 9403ASDMQB is designed for through-hole mounting, ensuring robust mechanical stability in various electronic systems.

9403ASDMQB Features

• Memory Configuration: The 9403ASDMQB offers a memory size of 64 bits, organized as 16 words of 4 bits each. This configuration is ideal for buffering small to medium-sized data sets.
• Supply Voltage and Current: It operates within a supply voltage range of 4.5 V to 5.5 V and has a maximum supply current of 170 mA, making it suitable for systems with moderate power requirements.
• Moisture Sensitivity Level (MSL): The device has an MSL of 3 (168 hours), ensuring it can withstand environmental conditions without degradation in performance.
• Mounting Type: Through-hole mounting provides mechanical stability and is ideal for applications where surface-mount technology is not feasible.
• Package Type: The 24-lead ceramic dual in-line package (CDIP) offers excellent thermal performance and reliability.
• Programmability: The 9403ASDMQB is not programmable, which simplifies its use in applications where fixed memory configurations are sufficient.
• FWFT Support: The device does not support First Word Fall Through (FWFT), which is typical for FIFOs that do not require immediate data availability upon read initiation.
• Retransmit Capability: The lack of retransmit capability means that data once read from the FIFO cannot be retransmitted, ensuring data integrity in single-pass applications.
• Programmable Flags Support: The absence of programmable flags simplifies the design and reduces complexity in applications where fixed flag states are acceptable.

9403ASDMQB Applications

The 9403ASDMQB is well-suited for a variety of applications that require reliable data buffering and moderate memory capacity. Some specific use cases include:

• Data Buffering in Communication Systems: The FIFO memory can be used to buffer data in communication systems, ensuring smooth data flow between different system components.
• Industrial Control Systems: The robust through-hole mounting and moderate power requirements make it ideal for industrial control systems where reliability and stability are paramount.
• Embedded Systems: The fixed memory configuration and non-programmable nature of the 9403ASDMQB make it suitable for embedded systems where simplicity and reliability are key considerations.
• Automotive Electronics: The device's ability to withstand environmental conditions due to its MSL rating makes it suitable for automotive applications where reliability under varying conditions is essential.

Conclusion of 9403ASDMQB

The 9403ASDMQB is a reliable and robust FIFO memory IC designed for applications requiring moderate data buffering. Its features, such as the 64-bit memory size, through-hole mounting, and moderate power requirements, make it an excellent choice for a variety of industrial and embedded systems. While it lacks advanced programmability and retransmit capabilities, its simplicity and reliability ensure it performs well in applications where these features are not necessary. The 9403ASDMQB stands out as a dependable solution for buffering data in systems where stability and straightforward design are critical.