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The ROHM part number 93L66 is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) from ROHM Semiconductor. Below are its key specifications, descriptions, and features:

Specifications:

• Memory Type: I²C-compatible Serial EEPROM
• Memory Capacity: 4Kbit (512 x 8 bits)
• Interface: I²C (Two-wire serial interface)
• Operating Voltage: 1.7V to 5.5V (Wide voltage range)
• Operating Temperature Range: -40°C to +85°C
• Write Cycle Endurance: 1,000,000 cycles (typical)
• Data Retention: 100 years (typical)
• Package Type: SOP-8 (JEDEC)

Descriptions:

• The 93L66 is a low-power, high-reliability EEPROM designed for applications requiring non-volatile memory storage.
• It supports byte-write and page-write operations (16-byte page buffer).
• Features built-in write protection and sequential read functionality.

Features:

• Low Power Consumption: Ideal for battery-operated devices.
• Wide Voltage Range: Compatible with 1.8V, 3.3V, and 5V systems.
• I²C Interface: Supports standard (100kHz) and fast (400kHz) modes.
• Hardware Write Protection: Prevents accidental data corruption.
• AEC-Q100 Qualified: Suitable for automotive applications (if applicable).

This device is commonly used in consumer electronics, industrial systems, automotive modules, and IoT devices for parameter storage and configuration data.

For detailed electrical characteristics and timing diagrams, refer to the official ROHM 93L66 datasheet.