Microchip Technology AT28C256E-15DM/883

The AT28C256E-15DM/883 is a high-performance 256K (32K x 8) Parallel EEPROM designed and manufactured by Microchip Technology, a leading provider of smart, connected, and secure embedded control solutions. This device offers a well-balanced combination of fast access time, low power consumption, and endurance, making it an ideal choice for a wide range of applications in the military, aerospace, and industrial sectors where reliability and durability are of paramount importance.

With its access time of 150ns, the AT28C256E-15DM/883 provides quick read operations, which is essential for high-speed microprocessors and could be crucial in time-critical applications. The EEPROM is organized as 32,768 words by 8 bits, which allows for a substantial amount of data storage and easy data manipulation for various tasks such as configuration settings, calibration data, and device state storage.

This EEPROM device operates at a voltage range of 5V ±10%, fitting well with the standard logic levels used in many digital circuits, and thereby simplifying power supply design. It features a robust endurance of 100,000 write cycles with a data retention of 10 years, ensuring the reliability of data over a long period of time, even under harsh conditions.

The AT28C256E-15DM/883 comes in a hermetically sealed package that provides additional protection against environmental factors such as moisture and contaminants, making it suitable for use in rugged environments. The device also supports a full military temperature range of -55°C to +125°C, which further underscores its capability to operate reliably in extreme temperature conditions.

For programming ease and flexibility, the AT28C256E-15DM/883 includes features such as byte write capability and a hardware data protection scheme. The byte write feature allows the user to change a single byte without affecting the entire array, providing a significant advantage in terms of programming time and efficiency. The hardware data protection includes a write enable latch and write protect pin to prevent accidental data corruption, which is critical in maintaining the integrity of the stored data.

In summary, the AT28C256E-15DM/883 from Microchip Technology represents a robust, reliable, and high-speed storage solution that meets the stringent requirements of mission-critical applications in military and industrial environments.