STMicroelectronics M27C256B-15F1L EPROM

The M27C256B-15F1L is a 256 Kbit (32K x 8) UV erasable and programmable read-only memory (EPROM) device produced by STMicroelectronics. This high-performance EPROM offers a large 256 kilobit storage capacity and is organized as 32,768 words by 8 bits. The M27C256B-15F1L is designed for applications that require fast and reliable non-volatile memory storage.

Key Features

• Access Time: The device features a fast access time of 150 ns, making it suitable for high-speed microprocessor systems.
• Programming Voltage: It supports a single 5V power supply in read mode, with a 12.5V programming voltage required for writing data.
• UV Erasable: The EPROM can be erased by exposure to ultraviolet light, allowing for reprogramming and reuse.
• Package: It comes in a 28-pin CERDIP (Ceramic Dual In-line Package) that provides environmental and mechanical protection, ensuring reliable operation in various conditions.
• Temperature Range: The device operates over an extended temperature range, making it suitable for industrial applications.

Applications

The versatility of the M27C256B-15F1L allows it to be used in a wide array of applications, including:

• Microprocessor systems
• Embedded systems
• Storage of look-up tables
• Telecommunication systems
• Automotive electronics
• Industrial control systems

Quality and Reliability

STMicroelectronics is known for its commitment to quality and reliability, and the M27C256B-15F1L is no exception. Each device undergoes rigorous testing to ensure it meets the high standards expected by customers in terms of performance and durability.

Programming and Erasure

The programming of the M27C256B-15F1L is performed by a two-pulse programming algorithm. The erasure process requires exposing the die to UV light, which clears the data, returning the device to its original state and allowing it to be reprogrammed. This feature provides flexibility and convenience for development, testing, and production phases.