The TMS27256-25JL is a high-performance, 256 Kilobit ultraviolet erasable and programmable read-only memory (EPROM) integrated circuit, designed and manufactured by the renowned semiconductor company Texas Instruments (TI). This EPROM offers a non-volatile storage solution and is widely used in legacy systems, including various microprocessors and other digital circuits that require a reliable memory for their firmware or data storage.

Key Features

• Memory Capacity: The TMS27256-25JL boasts a memory size of 256 kilobits, which is organized as 32,768 words by 8 bits. This provides enough space for storing substantial code or data.
• Access Time: With an access time of 250 nanoseconds, this EPROM provides swift data retrieval, facilitating efficient operation of the systems it is integrated with.
• Programming Voltage: It requires a single 5V power supply for read operations, while programming operations need a 12.5V VPP, ensuring compatibility with a wide range of existing hardware designs.
• Package Type: The device comes in a 28-pin, ceramic dual in-line package (CDIP), which is known for its durability and reliability in various environmental conditions.
• UV Erasable: The TMS27256-25JL can be erased using ultraviolet light, allowing it to be reprogrammed and reused multiple times, which is a valuable feature for development and testing purposes.

Applications

Due to its robustness and flexibility, the TMS27256-25JL is suitable for a wide range of applications. It is commonly used in:

• Embedded systems
• Industrial control systems
• Telecommunication equipment
• Automotive electronics
• Legacy computer systems

Quality and Reliability

Texas Instruments is known for its commitment to quality and the TMS27256-25JL is no exception. The device is manufactured to meet high standards of performance and stability, ensuring that it operates effectively under various conditions and throughout its intended lifespan.

Support and Documentation

TI provides comprehensive documentation for the TMS27256-25JL, including datasheets, programming guides, and application notes. Customers can also access TI's support services for additional assistance with product integration and troubleshooting.