The M27C256B is a 256 Kbit EPROM (Erasable Programmable Read-Only Memory) from the renowned semiconductor manufacturer, STMicroelectronics. This high-speed memory chip is designed to retain data without power and can be erased and reprogrammed by exposing it to ultraviolet light, making it a versatile choice for a wide range of applications.

Key Features

• Memory Capacity: 256 Kbit (32K x 8)
• Access Time: Offers access times as low as 45ns, providing fast read operations.
• Programming Voltage: 12.75V ± 0.25V programming voltage needed for fast programming.
• Single 5V Power Supply: Operates on a single 5V power supply, with a typical power consumption of 90 mA.
• UV Erasable: The windowed ceramic package allows for the exposure to ultraviolet light to erase the data, enabling reuse and reprogramming.
• Extended Temperature Range: Functional across an extended temperature range from -40°C to +125°C, suitable for tough environmental conditions.
• ESD Protection: Greater than 2000V of ESD protection ensures reliability and longevity of the device.

Applications

The M27C256B is ideal for applications that require data or program storage after power-off. Its robustness and flexibility make it suitable for:

• Embedded systems
• Microcontroller units (MCUs)
• Gaming and entertainment systems
• Industrial control systems
• Automotive electronics
• Medical devices

Quality and Reliability

STMicroelectronics ensures that the M27C256B EPROM meets the highest quality and reliability standards. Each chip undergoes rigorous testing and verification processes to guarantee performance under specified conditions. With its established reputation in the semiconductor industry, STMicroelectronics provides both technical support and reliability for this memory component.

Product Packaging

The M27C256B comes in a 28-pin Ceramic Dual In-line Package (C-DIP) with a transparent lid to facilitate the UV erasing process. This packaging is not only durable but also allows for easy handling and integration into various circuit designs.