The AT93C66-10SC-1.8 is a 4-Kbit serial Electrically Erasable Programmable Read-Only Memory (EEPROM) from Atmel (now Microchip Technology). It utilizes a 3-wire serial interface and is designed for low-voltage applications, operating at 1.8V. The device is organized as either 512 x 8 or 256 x 16 bits, selectable via the ORG pin. Despite being marked as END-OF-LIFE, it was used in various applications requiring non-volatile memory storage.

Applications

• Storing configuration settings in low-power devices.
• Storing calibration data.
• Storing serial numbers and identification information.
• Storing user preferences.
• Data logging in battery-powered applications.

Features

• 4-Kbit (512 x 8 or 256 x 16) EEPROM.
• Low-voltage operation (1.8V).
• 3-wire serial interface.
• Self-timed write cycle.
• High reliability with 1,000,000 erase/write cycles.
• Data retention of 100 years.
• Write protect feature.

Benefits

• Non-volatile memory ensures data retention even when power is removed.
• Low-voltage operation extends battery life in portable devices.
• Simple 3-wire interface simplifies integration with microcontrollers.
• Self-timed write cycle reduces software overhead.
• High reliability ensures data integrity over long-term use.
• Write protect prevents accidental data corruption.

Additional Details

The AT93C66-10SC-1.8 utilizes a standard 3-wire serial interface for communication with microcontrollers. The device supports a self-timed write cycle, simplifying the programming process. The memory organization is selectable via the ORG pin, offering flexibility in data storage. Given its End-of-Life status, it's important to consider alternative EEPROM solutions for new designs. Legacy systems requiring this specific part may need to manage inventory carefully. Consult the Microchip Technology datasheet for detailed specifications, including timing diagrams, electrical characteristics, and package information.