AT24C64A Datasheet



The AT24C64A provides 65,536 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 8192 words of 8 bits each. The device’s cascadable feature allows up to 8 devices to share a common twowire bus. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. The AT24C64A is available in space saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead Mini-MAP (MLP 2x3) and 8-lead TSSOP packages and is accessed via a 2-wire serial interface. AT24C64A Features • Low-Voltage and Standard-Voltage Operation – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 5.5V)• Low-Power Devices (ISB = 6 μA @ 5.5V) Available• Internally Organized 4096 x 8, 8192 x 8• Two-wire Serial Interface• Schmitt Trigger, Filtered Inputs for Noise Suppression• Bidirectional Data Transfer Protocol• 400 kHz (1.8V, 2.5V, 2.7V, 5V) Compatibility• Write Protect Pin for Hardware Data Protection• 32-byte Page Write Mode (Partial Page Writes Allowed)• Self-timed Write Cycle (5 ms Max)• High Reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years• Automotive Devices Available• 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead Mini-MAP (MLP 2x3) and 8-lead TSSOP Packages• Lead-free/Halogen-free• Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers


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