The W27E020-70 is a 2M-bit One-Time Programmable Read-Only Memory (OTP EPROM) organized as 256K words by 8 bits. It is manufactured by Winbond Electronics and is ideal for applications requiring non-volatile storage of program code or fixed data where occasional updates are not necessary.

Applications

• Firmware storage in embedded systems.
• Program storage in microcontroller-based applications.
• Storing boot code in computer systems.
• Character fonts and lookup tables in display systems.
• Storing calibration data in instruments.

Features

• High Speed: 70ns access time ensures rapid data retrieval.
• Single 5V Power Supply: Operates from a single 5V power source for ease of integration.
• Fully Static Operation: No clock or refresh required, simplifying system design.
• TTL Compatible Inputs and Outputs: Enables seamless interfacing with TTL logic circuits.
• 256K x 8 Organization: Provides a memory capacity of 2 megabits.
• One-Time Programmable: Data can be written once and retained indefinitely.
• Three-State Outputs: Allows for memory expansion by OR-tying multiple devices.

Benefits

• Fast Access: Quick data access contributes to the responsiveness of the system.
• Simple Integration: The single 5V supply and TTL compatibility make it easy to incorporate into various designs.
• Reliable Data Retention: Guarantees data integrity for the lifetime of the product.
• Cost-Effective: OTP technology offers a cost-effective solution for applications that don't require frequent data updates.
• Versatile Use: Suitable for a wide range of applications requiring non-volatile memory.

Additional Details

The W27E020-70 EPROM uses proven memory technology to ensure high reliability and data retention. It's fully static operation eliminates the need for complex timing and control circuitry. The device is programmed using standard EPROM programmers, making it easy to integrate into existing development environments. The W27E020-70 is an excellent choice for applications where a reliable and cost-effective non-volatile memory solution is needed and reprogramming is not a regular requirement.