The DQ28C64-200 is a CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by SEEQ. This memory chip is designed for non-volatile data storage, meaning it retains data even when power is removed. The "-200" likely indicates an access time of 200 nanoseconds.

Applications

• Embedded systems
• Industrial control equipment
• Consumer electronics
• Telecommunications equipment
• Data logging applications

Features

• 64K (65,536) bits of memory: Provides ample storage for configuration data, calibration constants, and other non-volatile information.
• CMOS technology: Offers low power consumption, making it suitable for battery-powered applications.
• Electrically Erasable: Allows for in-system reprogramming, enabling firmware updates and data modification.
• Fast access time (200ns): Enables quick data retrieval for real-time applications.
• JEDEC standard pinout: Facilitates easy integration into existing designs.
• Single 5V power supply: Simplifies power supply requirements.

Benefits

• Non-volatile data storage: Ensures data retention even during power outages.
• Low power consumption: Extends battery life in portable devices.
• In-system programmability: Allows for easy updates and modifications without removing the chip from the circuit.
• Fast access time: Improves system performance by minimizing data retrieval delays.
• Easy integration: Simplifies the design process with a standard pinout.
• Increased reliability: Offers robust data storage in harsh environments.

Relevant Additional Details

Specific details such as operating temperature range, endurance (number of write/erase cycles), and packaging options would be found in the device's datasheet. Consult the SEEQ datasheet for DQ28C64-200 for these specifications. This EEPROM would typically be accessed via a parallel interface. EEPROMs of this type were commonly used in older embedded systems before being largely supplanted by Flash memory.