The DM28C64-250 is a 64K (8K x 8) CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by SEEQ Technology. This non-volatile memory device can be electrically erased and reprogrammed, offering flexibility for applications requiring in-system updates or data storage where data retention is critical even when power is off. The '-250' suffix typically indicates an access time of 250 nanoseconds.

Applications

• Embedded Systems: Storage for firmware, configuration data, and calibration parameters in embedded systems.
• Data Logging: Recording sensor data or system events in data logging applications.
• Industrial Control: Storing program code and parameters for programmable logic controllers (PLCs) and other industrial control equipment.
• Telecommunications: Storing configuration data and network parameters in telecommunications equipment.
• Consumer Electronics: Storing user preferences and settings in various consumer electronic devices.

Features

• 64K (8K x 8) Memory Organization: Provides 64 kilobits of storage organized as 8192 bytes.
• CMOS Technology: Low power consumption for battery-backed or energy-efficient applications.
• Electrically Erasable and Programmable: Allows for in-system reprogramming and updates.
• Fast Access Time: Access time of 250 ns enables quick data retrieval.
• JEDEC Standard Pinout: Industry-standard pinout for easy integration and compatibility.
• Single 5V Power Supply: Operates from a single 5-volt power supply.

Benefits

• Non-Volatile Data Storage: Retains data even when power is removed.
• In-System Reprogrammability: Allows for firmware updates and configuration changes without removing the device from the system.
• Low Power Consumption: Minimizes power requirements for battery-powered applications.
• Fast Access Time: Enables quick data retrieval for real-time applications.
• Easy Integration: Standard pinout simplifies integration into existing designs.

Additional Details

The DM28C64-250 is a reliable and versatile EEPROM suitable for a wide range of applications. It operates on a single 5V power supply and features a typical access time of 250 nanoseconds. The CMOS technology ensures low power consumption, making it ideal for battery-backed applications. The device supports electrical erasure and programming, allowing for convenient in-system updates. The JEDEC standard pinout simplifies integration into existing designs. The device is offered in various package options, including DIP (Dual In-Line Package) and surface-mount packages. The DM28C64 is designed for applications where non-volatile data storage and in-system programmability are required. Data retention is typically specified for 10 years or more. Endurance is also typically specified to be 10,000 erase/write cycles. Prior to SEEQs acquisition by ST Microelectronics in 1999, SEEQ was a prominent manufacturer of EEPROM and EPROM devices.