AT24C64CN

The AT24C64C is a 64Kbit I²C-compatible serial EEPROM device. It is designed to operate over a supply voltage range of 1.7V to 5.5V, with a maximum transfer rate of 1MHz. The operating temperature range is -40°C to +105°C. The device integrates a write-protect pin for hardware write protection of the entire memory array. The serial EEPROM is organized as 256 pages of 32 bytes each, for a total of 8192×8 bits. The AT24C64C provides an additional 32-byte identification page for users to store sensitive application parameters. This page can be permanently locked in read-only mode after application data has been written to it. The AT24C64C also provides a separate memory block containing a factory-programmed 128-bit ID. This block is read-only and can be accessed by issuing a specific read command. The AT24C64C is available in lead-free green packages: DIP, SOP, MSOP, TSSOP, DFN, and SOT.

Key features

• Supply voltage range: 1.7V ~ 5.5V
• Two-wire serial interface, I²C compatible
• Compatible with 400kHz and high-speed 1MHz transfer rates
• Byte and page (up to 32 bytes) write modes
• Partial page write supported
• Self-timed write cycle (3ms max)
• Hardware write protection for entire memory array
• Additional 32-byte lockable write page and 128-bit ID
• Schmitt trigger, filtered inputs for noise suppression
• High reliability
• Endurance: 2,000,000 write cycles
• Data retention: 200 years
• ESD protection (Human Body Model): 6000V
• Low operating current
• Write current: 0.5 mA (max)
• Read current: 0.5 mA (max)
• Standby current: 1 μA (max)
• Operating temperature range: -40°C ~ +105°C
• Green package options (RoHS compliant, lead-free/halogen-free)
• DIP-8, SOP-8, TSSOP-8, MSOP-8, DFN-8, SOT-23-5 packages