The AT28C64B-25TI is a 64K (8K x 8) parallel EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Atmel. This device provides non-volatile data storage, retaining information even when power is removed. It offers byte-alterable capability, meaning individual bytes can be written or erased without affecting other memory locations. The 25 in the part number indicates a 250ns access time. The 'TI' likely refers to the package type.

Applications

• Embedded systems requiring persistent storage of configuration settings
• Data logging equipment
• Industrial automation and control systems
• Medical devices
• Consumer electronics

Features

• 64K (8K x 8) memory organization
• Fast access time: 250 ns
• Byte-alterable EEPROM
• Low power consumption
• Self-timed write cycle
• JEDEC standard pinout
• TTL compatible inputs and outputs
• High endurance: 100,000 write cycles (typical)
• 10-year data retention

Benefits

• Provides reliable non-volatile data storage
• Enables fast data access, improving system performance
• Reduces power consumption, making it suitable for battery-powered applications
• Offers flexibility in data management with byte-alterable capability
• Ensures long-term reliability with high endurance

Technical Specifications

The AT28C64B-25TI operates on a single 5V power supply. It has a standby current in the microampere range and an active current in the milliampere range. The device is typically available in a DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package. It supports both page write and byte write operations. The temperature range is typically industrial (-40°C to +85°C).