onsemi

FM93CS66N

FM93CS66N Description

The FM93CS66N is an 8-pin DIP (Dual In-Line Package) EEPROM memory IC chip manufactured by onsemi. This device is designed to provide reliable non-volatile storage with a memory organization of 256 x 16 bits, totaling 4Kbit of memory. The FM93CS66N operates within a supply voltage range of 4.5V to 5.5V and features a clock frequency of 1 MHz, ensuring efficient data access and storage. The memory interface is based on the Microwire protocol, which is known for its simplicity and low pin count, making it ideal for applications where minimal I/O resources are available.

The FM93CS66N is housed in a through-hole package, specifically a tube, which is suitable for applications requiring robust mechanical stability and ease of installation on printed circuit boards. The operating temperature range of 0°C to 70°C (TA) makes it suitable for a variety of industrial and commercial environments. The write cycle time for a word or page is 10ms, ensuring relatively fast data write operations.

This product is classified under the ECCN (Export Control Classification Number) EAR99 and is REACH unaffected, indicating compliance with international regulatory standards. The moisture sensitivity level (MSL) is rated at 1 (Unlimited), which means the device is not sensitive to moisture, further enhancing its reliability in various environmental conditions.

FM93CS66N Features

• Memory Organization: 256 x 16 bits, providing a total of 4Kbit of EEPROM storage.
• Memory Interface: Microwire protocol, offering a simple and efficient communication interface with minimal I/O requirements.
• Operating Voltage: 4.5V to 5.5V supply voltage range, ensuring compatibility with standard 5V systems.
• Clock Frequency: 1 MHz, enabling fast data access and efficient operation.
• Write Cycle Time: 10ms for word or page writes, ensuring relatively quick data storage capabilities.
• Operating Temperature: 0°C to 70°C (TA), suitable for a wide range of environmental conditions.
• Package Type: Through-hole, tube package, providing robust mechanical stability and ease of installation.
• Compliance: REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulatory standards.
• Moisture Sensitivity: MSL 1 (Unlimited), indicating the device is not sensitive to moisture, enhancing its reliability.

FM93CS66N Applications

The FM93CS66N is ideal for a variety of applications that require non-volatile memory storage with minimal I/O resources. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems where small form factor and low power consumption are critical.
• Industrial Control: Suitable for industrial applications that require reliable data storage and retrieval.
• Consumer Electronics: Can be used in consumer electronics for storing configuration data and user settings.
• Automotive Applications: Applicable in automotive systems for storing critical data such as calibration settings and fault codes.
• Telecommunications: Useful in telecommunication equipment for storing configuration parameters and operational data.

Conclusion of FM93CS66N

The FM93CS66N is a versatile EEPROM memory IC chip that offers reliable non-volatile storage with a simple Microwire interface. Its 4Kbit memory capacity, 1 MHz clock frequency, and 10ms write cycle time make it suitable for a wide range of applications. The through-hole package and broad operating temperature range ensure robustness and compatibility with various environments. Compliance with international regulatory standards and a moisture sensitivity level of 1 (Unlimited) further enhance its reliability.

While the FM93CS66N is now considered obsolete, it remains a valuable component for legacy systems and applications where its unique features and performance benefits are still relevant. For new designs, engineers may consider exploring alternative EEPROM solutions from onsemi or other manufacturers that offer similar or enhanced capabilities.