Microchip Technology AT28C256-90JI EEPROM

The AT28C256-90JI is a high-performance, 256K (32K x 8) parallel EEPROM designed and manufactured by Microchip Technology. This non-volatile memory chip offers a fast access time of 90ns, making it an excellent choice for applications that require quick data retrieval and storage. The IC is packaged in a robust 32-lead PLCC (Plastic Leaded Chip Carrier) that ensures reliable operation even under harsh conditions.

The AT28C256-90JI is well-suited for a wide range of applications, including but not limited to, microcontroller-based systems, computer BIOS, telecommunications, and industrial control systems where reliable and durable data storage is paramount. Its high-density storage capability allows for efficient storage of configuration settings, calibration data, and application firmware that may need frequent updating.

Key features of the AT28C256-90JI include:

• Low-power CMOS technology: This EEPROM utilizes CMOS technology to ensure low power consumption, making it ideal for battery-operated and power-sensitive applications.
• Fast read access time: With a 90ns access time, the device supports fast read operations, enabling quick data retrieval without slowing down the overall system performance.
• Write-protect feature: To prevent accidental data overwrite, the AT28C256-90JI includes a hardware write-protect feature that safeguards the stored data.
• High-reliability: Endurance of 100,000 write cycles and data retention of 10 years guarantee the reliability and longevity of the EEPROM.
• Easy interfacing: The parallel interface ensures compatibility with most microcontrollers and processors, providing straightforward integration into existing designs.

Microchip Technology's commitment to quality is evident in the AT28C256-90JI, as it is manufactured to meet the high standards expected from a leader in the semiconductor industry. Whether you're designing a new system or upgrading an existing one, the AT28C256-90JI offers the performance, reliability, and ease of use that engineers and designers need to create robust and efficient electronic products.