AT28C256-15PU

The AT28C256-15PU is a 256K-bit (32K x 8) EEPROM (Electrically Erasable Programmable Read-Only Memory) from Microchip Technology. It is primarily used for storing firmware, data, and configuration settings in various electronic devices. This IC allows both random access and byte-level read/write operations, making it versatile for embedded applications.
Key features include a maximum access time of 150 ns (15PU version), a single 5V power supply, and the ability to write and erase data electrically. The device employs a dual in-line package (DIP) format, which facilitates easy integration into circuit boards.
The AT28C256 supports multiple programming modes, including byte programming and block erase, making it suitable for applications requiring frequent updates. Its non-volatile nature ensures data retention without power, making it ideal for applications like automotive electronics, consumer appliances, and industrial controls. Additionally, the IC is compatible with standard programming algorithms, ensuring wide usability across various platforms.

The AT28C256-15PU is a 256 Kbit (32 K x 8) Electrically Erasable Programmable Read-Only Memory (EEPROM) from Atmel. Key features include:
1. Memory Organization: 32 K x 8 bits, allowing storage of up to 32 kilobytes of data.
2. Access Time: It has a maximum access time of 150 ns, ensuring fast data retrieval.
3. Programming Voltage: Operates at a programming voltage of 5V, simplifying integration with standard logic levels.
4. Endurance: Supports a minimum of 1,000,000 erase/write cycles, making it suitable for applications requiring frequent updates.
5. Data Retention: Maintains data integrity for at least 20 years under proper conditions, ensuring long-term storage reliability.
6. Interface: Utilizes a standard parallel interface for easy integration with microcontrollers and other digital systems.
7. Temperature Range: Typically rated for industrial temperature ranges (-40°C to +85°C), making it versatile for various environments.
These features make the AT28C256-15PU ideal for applications in embedded systems, firmware storage, and other data retention scenarios.

The AT28C256-15PU is packaged in a 28-pin plastic DIP (Dual In-line Package).

The AT28C256-15PU is manufactured by Atmel Corporation, which is now part of Microchip Technology Inc. Atmel was a semiconductor company known for its microcontrollers, memory devices, and other integrated circuits. The AT28C256-15PU is a 256K (32K x 8) ultraviolet erasable programmable read-only memory (EPROM) device.
Microchip Technology, the parent company, is a leading provider of microcontroller and analog semiconductors. Founded in 1989, Microchip offers a wide range of products and solutions for various applications, including automotive, industrial, and consumer electronics. The company focuses on providing innovative solutions and support for embedded systems developers worldwide.

The AT28C256-15PU is a 256Kb (32K x 8) EEPROM primarily used in applications such as firmware storage, microcontroller support, data logging, and configuration settings in embedded systems. Its non-volatile memory ensures data retention without power, making it suitable for automotive, industrial control, consumer electronics, and telecommunications where reliable, reprogrammable storage is essential.

The AT28C256-15PU is a 256Kb (32K x 8) EEPROM. Equivalent products include the AM29F256, W27C256, and MX29F256. Other alternatives might be the SST28SF256 or the ST M29F256. Always verify pin compatibility and electrical specifications when considering replacements.