The MSM518221A-25Z3 is a high-speed, low-power 256K x 8-bit Dynamic RAM (DRAM) manufactured by Rohm Semiconductor. This DRAM is designed for applications demanding fast access times and minimal power consumption, making it suitable for various memory-intensive tasks. It is often used in embedded systems, computer peripherals, and other electronic devices where memory performance is critical.

Applications:

• Embedded systems
• Computer peripherals (e.g., printers, scanners)
• Graphics cards
• Cache memory
• Digital signal processing (DSP) applications

Features:

• 256K x 8-bit organization
• High-speed access time (25ns)
• Low power consumption
• TTL compatible inputs and outputs
• Single 5V power supply
• Refresh cycle: 512 cycles / 8ms

Benefits:

• Fast data access for high-performance applications
• Reduced power consumption, extending battery life in portable devices
• Easy integration with TTL logic circuits
• Simplified system design with a single power supply requirement
• Reliable data storage with periodic refresh cycles

Additional Details:

The MSM518221A-25Z3 features a fast access time of 25ns, enabling quick retrieval and storage of data. Its low power consumption makes it ideal for battery-powered devices and energy-efficient applications. The DRAM is designed with TTL compatible inputs and outputs, facilitating seamless integration with TTL logic circuits. It operates on a single 5V power supply, simplifying the system design and reducing the number of required power rails. The refresh cycle of 512 cycles / 8ms ensures data integrity by periodically refreshing the memory cells. This DRAM is typically used in applications where memory speed and power efficiency are critical considerations. Its compact package allows for efficient use of board space. The high reliability and performance characteristics of the MSM518221A-25Z3 make it a suitable choice for demanding memory applications. It is also suitable for use in data buffering and temporary data storage.