The M27C256B-15C1 is a high-speed 256 Kb EPROM (Erasable Programmable Read-Only Memory) chip produced by STMicroelectronics. This device offers a substantial amount of non-volatile memory storage and is designed for applications that require fast access times and a reliable storage solution. With its 32K x 8 bit configuration, it is ideal for use in a wide range of computing systems and embedded applications.

Key Features

• Memory Size: 256 Kbit (32Kb x 8)
• Access Time: 150 ns
• Single 5V Power Supply: Ensures compatibility with standard digital circuits.
• Programming Voltage: 12.75V ± 0.25V
• Programming Time: 100µs/byte
• Temperature Range: Operating temperatures from 0°C to 70°C.
• Package: 28-pin Ceramic DIP (Dual In-line Package)

Performance and Reliability

The M27C256B-15C1 is designed for high-speed operation, with an access time of 150 ns, which allows for swift data retrieval, making it suitable for performance-critical applications. The device is also known for its reliability and long data retention ability, which is crucial for preserving data integrity over extended periods.

Applications

This EPROM chip finds its use in a variety of applications where a dependable and permanent storage of program code or data is required. Common applications include:

• Embedded systems
• Microcontroller-based applications
• Industrial control systems
• Medical devices
• Telecommunication equipment

Programming and Erasure

The M27C256B-15C1 can be electrically programmed using a compatible EPROM programmer that provides the necessary 12.75V programming voltage. The device can be erased by exposing it to ultraviolet (UV) light, which clears the stored data, allowing the device to be reprogrammed. This feature provides flexibility for updates and modifications to the stored data.

Quality and Support

STMicroelectronics is known for its commitment to quality and provides extensive support for its products. The M27C256B-15C1 EPROM is backed by the company's rigorous testing and quality assurance processes, ensuring that each chip meets the highest standards of performance and reliability.