Microchip Technology AT28C256-20FM/883

The AT28C256-20FM/883 is a high-performance, 256K (32K x 8) parallel EEPROM from Microchip Technology, designed to deliver a combination of fast access time and low power operation. This EEPROM device is particularly suited for applications that require robust and reliable non-volatile memory storage. With its military-grade specifications, the AT28C256-20FM/883 is engineered to withstand extreme environmental conditions, making it an ideal choice for aerospace, defense, and other high-reliability industries.

The device operates at a speed of 200ns (nanoseconds), ensuring quick data retrieval and write operations, which is crucial for performance-critical systems. The EEPROM is organized as 32,768 words by 8 bits, providing a significant amount of storage for firmware, calibration data, configuration settings, or any application data that must be preserved across power cycles.

One of the key features of the AT28C256-20FM/883 is its byte-write capability, which allows users to write data to the memory one byte at a time. This feature provides a high degree of flexibility for data management and updates. Additionally, the entire memory can be erased and reprogrammed in one single operation, ensuring efficient use of the device during reprogramming sequences.

The AT28C256-20FM/883 operates over a wide voltage range and includes full static operation, meaning no clock or refreshing is required. It has an input/output direct interface to microprocessors and is fully compatible with the most popular microcontrollers on the market.

To ensure data integrity, the device includes hardware and software data protection schemes. The hardware protection involves a write protect pin that, when activated, prevents any write operations to the memory. The software protection mechanism is implemented through a series of specific commands that must be executed to enable write operations.

Overall, the Microchip AT28C256-20FM/883 EEPROM offers a reliable and durable solution for storing critical data in demanding environments. Its combination of speed, power efficiency, and robustness makes it an excellent choice for mission-critical applications requiring non-volatile memory storage.