The TMM2018AP-25 is a high-speed, low-power static RAM (SRAM) manufactured by Toshiba Semiconductor and Storage. This memory chip is designed for applications requiring fast data access and low power consumption. It is organized as 16,384 words by 1 bit. The -25 suffix indicates an access time of 25 nanoseconds.

Applications

• High-speed cache memory
• Buffer memory
• Workstations
• Minicomputers
• Microprocessor systems requiring fast memory access

Features

• High-speed access time: 25 ns
• Low power consumption: Typically in the range of a few hundred milliwatts during operation, and lower in standby mode.
• Single 5V power supply: Simplifies system design and reduces power supply requirements.
• Fully static operation: No clock or refresh required, simplifying memory control.
• TTL compatible inputs and outputs: Allows for easy interface with other digital components.
• Three-state outputs: Enables memory expansion by allowing multiple devices to share a common data bus.
• Available in DIP package: Offers ease of prototyping and through-hole mounting.

Benefits

• Improved system performance: The fast access time of 25 ns significantly improves the overall performance of systems that rely on rapid data retrieval.
• Reduced power consumption: The low power consumption reduces the energy footprint of the system, making it suitable for portable and energy-sensitive applications.
• Simplified system design: The single 5V power supply and TTL compatibility simplify the integration of the memory chip into existing systems.
• Easy to use: The fully static operation eliminates the need for complex refresh cycles, simplifying memory control and reducing development time.
• Flexibility: The three-state outputs enable memory expansion, allowing for larger memory capacity as needed.

Additional Details

The TMM2018AP-25 utilizes advanced CMOS technology to achieve its high speed and low power characteristics. It is typically packaged in a 24-pin DIP (Dual In-line Package), which facilitates easy insertion into standard IC sockets. The chip operates over a standard commercial temperature range. The address inputs, data input, data output, chip enable (CE), and write enable (WE) pins are all TTL compatible, ensuring seamless interfacing with various digital logic circuits. The device also features a chip select (CS) input for memory expansion and bank selection.