M22100B1

Analog Switches - Special Purpose Overview

The M22100B1 is a 10 Kbit (128 x 64 bits) serial EEPROM manufactured by STMicroelectronics using Hi-Endurance Advanced CMOS technology. It features a 2-wire serial interface with a maximum clock frequency of 0.1 MHz and operates on a single supply voltage ranging from 2.7V to 5.5V. The device offers 100,000 erase/write cycles and ensures data retention for at least 100 years at 55°C. It supports byte write and page write modes up to 4 bytes, includes automatic address incrementing, and provides hardware write control. Available in an 8-pin DIP package, it is designed for applications requiring reliable non-volatile memory storage.

Analog Switches - Special Purpose Feature Summary

• High endurance with 100,000 write/erase cycles guaranteed
• Long-term data retention capability of 100 years at elevated temperatures
• Hardware write protection mechanism for enhanced data security
• Simplified 2-wire serial interface compatible with standard bus protocols

Analog Switches - Special Purpose Applications

• Industrial equipment configuration storage
• Consumer electronics parameter saving
• Smart metering data logging
• Automotive subsystem memory backup

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix 'B1' against official STMicroelectronics documentation to confirm package type and temperature range specifications. Ensure compliance with RoHS directives if required for your application, as some variants may not be compliant. Cross-reference the datasheet version to confirm interface timing parameters and electrical characteristics match your system requirements before procurement.

Analog Switches - Special Purpose Selection Notes

Select this component when a small capacity non-volatile memory with high endurance is needed. The 2-wire interface simplifies PCB routing compared to SPI or I2C alternatives. Consider the 100-year data retention for long-life products. Verify that the 0.1 MHz clock speed meets your system's update rate requirements. The DIP-8 package is suitable for prototyping or through-hole manufacturing processes.

Analog Switches - Special Purpose Part Context

The M22100 series belongs to STMicroelectronics' line of simplified 2-wire serial EEPROMs. These devices are part of the broader STM24CL family architecture, optimized for cost-sensitive applications requiring reliable data storage. The M22100 specifically scales the memory density to 10 Kbits, bridging the gap between smaller 1 Kbit and larger 32 Kbit options in the same interface family.

Analog Switches - Special Purpose Replacement Considerations

Direct pin-to-pin replacements within the same 2-wire EEPROM family include the M22100R1 or M22100D1, depending on the required package variant. Verify that any substitute maintains the same 2.7V to 5.5V operating voltage range and 100,000 cycle endurance rating. Check for compatibility with existing software drivers regarding page write sizes and address incrementing behavior.