The AT28C64 is a 64K (8K x 8) Electrically Erasable and Programmable Read-Only Memory (EEPROM). This device features fast access times, low power dissipation and simple interfacing. It is designed for applications where non-volatile memory is required, and in-system re-programmability is a major advantage.

Applications:

• Data Storage in Embedded Systems
• Configuration Data Storage
• Industrial Control Systems
• Robotics
• Instrumentation

Features:

• Fast Access Time: Offers quick data access which is critical for real-time applications.
• Low Power Dissipation: Reduces energy consumption making it suitable for battery powered devices.
• Electrically Erasable and Programmable: Allows for in-system reprogramming, increasing flexibility.
• Page Write Operation: Speeds up write operations by writing multiple bytes simultaneously.
• Self-Timed Write Cycle: Simplifies the writing process and eliminates the need for external timing circuits.
• JEDEC Standard Pinout: Facilitates easy replacement of existing ROMs, PROMs or EPROMs.

Benefits:

• Reduced system cost by eliminating the need for external programming equipment.
• Increased flexibility by enabling in-system reprogramming.
• Improved system performance with fast access times.
• Extended battery life in portable applications due to low power consumption.
• Simplified system design due to the self-timed write cycle.
• Easy integration into existing designs due to the JEDEC standard pinout.

Additional Details:

The AT28C64 operates from a single 5V power supply and is available in JEDEC approved 28-pin DIP, SOIC, and PLCC packages. It uses a two-line control architecture to prevent inadvertent writes to the memory. It also supports a page write mode, allowing the user to write up to 64 bytes simultaneously, thus speeding up the write process. It offers high endurance, typically 10,000 erase/write cycles per byte, and data retention of 10 years.