The MD27256-25 is a 256K (32K x 8) electrically programmable read-only memory (EPROM) manufactured by Rochester Electronics. This EPROM is designed for applications requiring non-volatile storage and relatively fast access times. It is commonly used to store firmware, boot code, and other critical data in embedded systems and other electronic devices. Rochester Electronics often provides continued availability of components that are no longer manufactured by the original manufacturer.

Applications

• Embedded Systems
• Microcontroller Program Storage
• Industrial Control Equipment
• Telecommunications Equipment
• Instrumentation
• Automotive Electronics

Features

• Organization: 32K x 8 bits
• Access Time: 250 ns
• Supply Voltage: 5V ±10%
• Programming: Requires dedicated EPROM programmer
• Package: DIP-28
• Operating Temperature: 0°C to +70°C (Commercial)
• Non-Volatile Storage: Data is retained even when power is removed
• High Speed: Fast access times for quick data retrieval

Benefits

• Reliable Data Storage: Ensures data integrity and retention.
• Fast System Performance: Enables quick boot-up times and efficient data access.
• Simplified System Design: Reduces the need for complex memory management.
• Cost-Effective Solution: Provides a competitive storage option.
• Easy Integration: Compatible with a wide range of microprocessors and microcontrollers.

Additional Details

The MD27256-25 is typically packaged in a 28-pin DIP (Dual In-line Package), facilitating easy insertion and removal from circuit boards. It requires a dedicated EPROM programmer to write data. The device is designed to operate within a commercial temperature range (0°C to +70°C). The EPROM utilizes industry-standard programming algorithms, ensuring compatibility with a variety of programmers. The 250ns access time is adequate for many embedded applications. Rochester Electronics' version ensures continued availability for legacy systems or applications with long lifecycles.