The TC514256BJ-70 is a 262,144-word by 4-bit dynamic random-access memory (DRAM) manufactured by Toshiba Semiconductor and Storage. This DRAM is designed for high-performance applications requiring fast access times and reliable data storage. The '70' in the part number indicates an access time of 70 nanoseconds.

Applications

• High-speed data processing systems
• Graphics cards and video memory
• Computer main memory
• Digital signal processing (DSP) applications
• Cache memory

Features

• Organization: 262,144 words x 4 bits
• Access Time: 70 ns
• Package: Likely a plastic SOJ (small outline J-lead) or DIP (dual in-line package)
• Refresh: Requires periodic refresh cycles to maintain data integrity
• Operating Voltage: Typically 5V
• Low power consumption
• High speed data transfer rates

Benefits

• Fast access times enable quick data retrieval and processing, enhancing system performance.
• Reliable data storage ensures data integrity in critical applications.
• Low power consumption contributes to energy efficiency in electronic devices.
• The compact package allows for integration into space-constrained systems.
• Cost-effective memory solution for various applications.

Additional Details

The TC514256BJ-70 DRAM utilizes dynamic storage cells, which require periodic refreshing to maintain the stored data. The refresh operation involves reading and rewriting the data in each memory cell. This DRAM supports various refresh modes, including auto-refresh and self-refresh, depending on the specific system requirements. It's important to consult the datasheet for precise operating characteristics and timing requirements. The package type, while likely SOJ or DIP, needs to be confirmed via the datasheet. Proper decoupling capacitors are essential for stable operation and minimizing noise. The device typically uses multiplexed address inputs to reduce the pin count, requiring external control signals for row and column address strobes (RAS and CAS).