The CXK58257ASP-10L is a high-speed, low-power 256K (32,768 words x 8 bits) static random-access memory (SRAM) manufactured by Sony. This SRAM is designed for applications that require fast access times and low power consumption. Being an end-of-life (EOL) product, it is typically found in legacy systems or specialized applications where its unique characteristics are essential.

Applications

• Embedded Systems: Used in embedded systems requiring fast memory access and low power operation.
• Industrial Control Systems: Integrated into industrial control boards where quick data retrieval is critical.
• Communication Equipment: Utilized in communication devices for buffering data and storing configuration parameters.
• Data Acquisition Systems: Employed in data acquisition systems for temporary data storage and processing.
• Legacy Systems: Found in older systems that were designed to specifically use this SRAM due to its particular specifications.

Features

• High-Speed Access Time: Offers a fast access time of 10 ns, allowing for rapid data retrieval.
• Low Power Consumption: Designed for low power operation, making it suitable for battery-powered applications.
• Fully Static Operation: Requires no clock or refresh cycles, simplifying system design.
• TTL Compatible Inputs and Outputs: Compatible with standard TTL logic levels for easy interfacing.
• Single 5V Power Supply: Operates from a single 5V power supply, simplifying power supply requirements.

Benefits

• Fast Data Access: Enables quick data retrieval, improving system performance.
• Low Power Operation: Reduces power consumption, extending battery life in portable devices.
• Simplified System Design: Eliminates the need for external refresh circuitry.
• Easy Integration: Compatible with standard TTL logic levels.
• Stable Performance: Reliable performance within specified operating conditions.

Additional Details

The CXK58257ASP-10L is typically available in a 28-pin SOJ (Small Outline J-lead) package. It operates over a temperature range of 0°C to +70°C. The SRAM features separate data input and output pins, allowing for easy implementation in various memory architectures. Due to its end-of-life status, sourcing this component may require contacting specialized suppliers or distributors that handle legacy components. It is important to verify the availability and condition of the part before incorporating it into a design.