The M27C256B-90B6 is a high-speed 256 Kbit EPROM (Erasable Programmable Read-Only Memory) manufactured by STMicroelectronics. This device is designed for applications where reliable and dependable non-volatile memory storage is essential. With its 90 ns access time, it provides excellent performance for microprocessor systems requiring fast read operations.

Key Features

• Memory Size: 256 Kbits (32K x 8)
• Speed: 90 ns access time
• Package: 28-pin CERDIP (Ceramic Dual In-line Package)
• Single 5V Power Supply: Ideal for standard 5V microprocessor systems.
• Programming Voltage: 12.75V ± 0.25V
• Temperature Range: Operates within a temperature range of 0°C to 70°C, suitable for commercial applications.
• UV Erasable: The device can be erased and reprogrammed by exposing the die to ultraviolet light, making it reusable for multiple applications or updates.

Applications

The M27C256B-90B6 is versatile and can be used in various applications. It is commonly found in embedded systems, automotive electronics, personal computers, and gaming consoles. It's also suitable for use in telecommunications, industrial control systems, and other electronic devices that require a reliable form of data storage that can withstand rigorous usage and environmental conditions.

Reliability and Quality

STMicroelectronics is known for its commitment to quality and reliability, and the M27C256B-90B6 EPROM is no exception. Each device undergoes rigorous testing and quality control measures to ensure it meets the industry standards for performance and durability. Customers can rely on this EPROM to maintain data integrity and provide consistent performance over its lifetime.

Programming and Erasure

The M27C256B-90B6 can be programmed using a compatible EPROM programmer that provides the necessary voltage levels for programming. The erasure process requires a UV light source to clear the stored data, allowing users to reprogram the memory as needed. This feature makes the M27C256B-90B6 a flexible choice for development, prototyping, and small-scale production runs.