The Atmel AT24C01 is a 1Kbit (128 x 8) Serial EEPROM (Electrically Erasable Programmable Read-Only Memory). It utilizes a simple two-wire serial interface (I2C) for communication and is designed for low-power applications. This EEPROM is typically used for storing small amounts of configuration data, user preferences, or other non-volatile information.

Applications

• Consumer Electronics
• Industrial Controls
• Medical Devices
• Automotive Electronics
• Data Logging
• Storing Configuration Data

Features

• 1Kbit (128 x 8) EEPROM
• Two-Wire Serial Interface (I2C)
• Low Voltage Operation: 1.8V to 5.5V
• Write Protect Feature
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Self-Timed Write Cycle
• High Reliability: 1 Million Write Cycles
• Data Retention: 100 Years

Benefits

• Non-Volatile Storage: Retains data even when power is removed.
• Easy to Use: Simple two-wire interface simplifies system integration.
• Low Power Consumption: Suitable for battery-powered applications.
• High Reliability: Ensures data integrity over a long period.
• Compact Size: Available in small packages for space-constrained designs.

Additional Details

The AT24C01 communicates via the I2C protocol, using a device address for identification on the bus. The write protect feature prevents accidental data corruption. The self-timed write cycle eliminates the need for external timing components. Despite being listed as END-OF-LIFE, the AT24C01 remains a reliable choice for legacy systems requiring a small, low-power EEPROM. It is available in various packages including SOIC and DIP. It is typically programmed using common I2C programmers and development boards.