The AT27C256R-45PI is a high-performance 256Kbit EPROM (Erasable Programmable Read-Only Memory) chip manufactured by Microchip Technology. This device offers a storage capacity of 256 kilobits and is organized as 32,768 words by 8 bits per word, providing ample space for firmware storage, boot code, or other read-only data that requires reliable storage with the capability for occasional updates.

Featuring a fast access time of 45 nanoseconds, the AT27C256R-45PI ensures quick data retrieval, which is essential for high-speed applications where performance is critical. This speed is particularly beneficial for systems that cannot tolerate significant latency when reading from memory.

Key Features:

• Memory Size: 256Kbit (32,768 x 8)
• Access Time: 45ns
• Package Type: 28-Pin PDIP (Plastic Dual In-line Package)
• Operating Voltage: 5V
• Temperature Range: Industrial (-40°C to +85°C)
• Programming Voltage: 12.5V ± 0.5V

The AT27C256R-45PI is designed for easy integration into a variety of systems, thanks to its industry-standard PDIP package, which is known for its durability and ease of handling. The device operates at a standard 5V power supply, making it compatible with most 5V logic families and simplifying power management in mixed-voltage systems.

With its robust temperature range, this EPROM is suitable for use in challenging industrial environments, ensuring reliable operation under extreme conditions. The programming voltage of 12.5V allows for reliable writing of data to the chip, which can then be erased with exposure to ultraviolet light, allowing for reuse and flexibility in development and prototyping phases.

Whether you are working on embedded systems, telecommunications, or industrial control applications, the Microchip Technology AT27C256R-45PI EPROM offers a reliable and efficient solution for your non-volatile memory needs, backed by the quality and support that Microchip Technology is known for.