The AT24C256C-CUL-T is a 256 Kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) from Atmel. It is organized as 32,768 words of 8 bits each and communicates via a two-wire serial interface (I2C). This EEPROM is designed for a broad range of applications where non-volatile memory storage is required.

Applications:

• Consumer electronics (e.g., set-top boxes, DVD players)
• Industrial control systems
• Networking equipment
• Medical devices
• Automotive applications (e.g., car radios, engine control units)
• Smart cards
• Data logging systems
• Configuration storage for embedded systems

Features:

• 256 Kbit (32,768 x 8) EEPROM
• Two-wire serial interface (I2C)
• Wide voltage operation: 1.7V to 5.5V
• Schmitt trigger, filtered inputs for noise suppression
• Write protect pin for hardware data protection
• High reliability: 1 million erase/write cycles
• Data retention: 100 years
• Self-timed write cycle
• Page write buffer: up to 64 bytes
• Available in various packages including SOIC, TSSOP, and UDFN

Benefits:

• Non-volatile storage: Retains data without power, crucial for configuration settings and data logging.
• Flexible operating voltage: Suitable for diverse applications with varying power requirements.
• Simple interface: I2C interface simplifies integration with microcontrollers and other peripherals.
• Robust data protection: Prevents accidental data corruption during write operations.
• Long-term reliability: Ensures data integrity over extended periods and multiple write cycles.
• Space-saving packages: Available in small form-factor packages for compact designs.

Additional Details:

The AT24C256C-CUL-T operates at a maximum clock frequency of 1 MHz. The self-timed write cycle allows for simplified programming. The page write mode further optimizes write throughput by allowing up to 64 bytes to be written in a single operation. It's crucial to consult the device datasheet for specific electrical characteristics, timing diagrams, and package dimensions. The operating temperature range typically spans from -40°C to +85°C. This part is offered in a variety of packages.