The M27C256B-25XF1 is a 256 Kbit (32Kb x 8) UV erasable and programmable read-only memory (EPROM) chip, produced by STMicroelectronics. This high-speed memory device features a 250 ns access time, making it suitable for high-performance microprocessor systems. It is organized as 32,768 words by 8 bits, and it is housed in a 28-pin, 0.6-inch wide, ceramic flat package (F1 suffix).

Key Features

• Memory Capacity: 256 Kbit (32K x 8)
• Access Time: 25 ns
• Package Type: 28-Pin Ceramic Flat Package
• UV Erasable: The data can be erased by exposing the die to ultraviolet light, allowing the device to be reused.
• Programmable: Offers flexibility as it can be programmed by the user with the desired data set.
• Operating Modes: The device supports read and programming operations, with a two-line control function to facilitate easy interfacing.
• High Reliability: STMicroelectronics guarantees a high level of reliability, with data retention specified for a minimum of 10 years and 1000 erase/program cycles.
• Low Power Consumption: Features low power consumption with a single 5V power supply, making it energy efficient for embedded systems.

Applications

The M27C256B-25XF1 is commonly used in a wide range of applications that require reliable, non-volatile memory storage. These applications include:

• Microprocessor systems
• Embedded systems
• Computer BIOS chips
• Industrial control systems
• Telecommunication devices
• Automotive electronics
• Medical devices

Quality and Support

STMicroelectronics is known for its commitment to quality and reliability. The M27C256B-25XF1 EPROM is no exception, with rigorous testing and quality control measures in place to ensure consistent performance. Additionally, STMicroelectronics provides comprehensive technical support and documentation for developers, making integration and application development more straightforward.