The X2804AP-35 is a 4K EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor Inc. This parallel EEPROM is designed for applications requiring non-volatile storage of data, meaning the data is retained even when the power is turned off. It is often used to store firmware, configuration settings, and other critical information in a variety of electronic systems.

Applications

• Embedded Systems: Stores boot code and configuration data in embedded systems.
• Industrial Control Systems: Retains calibration settings and program data for industrial equipment.
• Telecommunications Equipment: Used in routers and switches for storing network configurations.
• Instrumentation: Retains calibration parameters and settings in measurement instruments.
• Medical Devices: Stores device configuration and operating parameters in medical equipment.

Features

• 4K (512 x 8) EEPROM: Provides 4096 bits of non-volatile storage.
• Parallel Interface: Uses a parallel data bus for high-speed data transfer.
• Fast Access Time: Offers a typical access time of 350ns.
• Automatic Page Write: Simplifies write operations by automatically handling page boundaries.
• Data Protection: Includes write protection features to prevent accidental data corruption.

Benefits

• Non-Volatile Storage: Retains data even when power is removed.
• High-Speed Access: Parallel interface allows for fast data reading and writing.
• Easy Integration: Simple parallel interface simplifies connection to microprocessors.
• Data Protection: Write protection features ensure data integrity.
• Reliability: High endurance ensures long-term data storage and retrieval.

The X2804AP-35 typically operates from a single 5V power supply and is available in a 24-pin DIP (Dual In-line Package). The parallel interface allows for easy integration with microprocessors and microcontrollers. The device features a page write mode, which allows for writing multiple bytes of data in a single operation, improving programming efficiency. It also includes a write protect feature to prevent accidental data alteration. The X2804AP-35 is designed to operate over a wide temperature range and offers high reliability and endurance. The device provides 10-year data retention and an endurance of 10,000 write/erase cycles. The parallel interface uses an 8-bit data bus, and address lines determine which memory location is being accessed. The access time of 350ns allows for fast reading of data.