Microchip 24LC64-I/SN 64Kbit I2C Serial EEPROM, SOIC-8

The Microchip 24LC64-I/SN is a 64 Kbit serial Electrically Erasable Programmable Memory (EEPROM) housed in a compact 8-pin SOIC package. Operating via a two-wire I2C serial interface, it is organised as a single block of 8K x 8-bit memory. Its advanced low-voltage design enables reliable operation down to 1.7V, consuming minimal power with standby and active currents of only 1µA and 3mA respectively, making it ideal for battery-powered and energy-conscious applications.

Engineered for high endurance, this EEPROM features more than 1 million erase/write cycles and offers exceptional data retention of greater than 200 years. It supports a page write capability for up to 32 bytes of data, with a maximum page write time of 5ms. The integrated hardware write-protect pin and self-timed write cycle enhance data security and simplify system design.

Key Features & Specifications

• Memory Density: 64 Kbit
• Configuration: 8K x 8-bit
• Interface: Standard I2C (Two-Wire Serial)
• Clock Frequency: Maximum 400 kHz
• Supply Voltage: Wide range from 2.5V to 5.5V
• Technology: Low-Power CMOS
• Operating Temperature: Robust -40°C to +85°C range
• Package: 8-pin SOIC, Surface Mount (SMD)
• Hardware Features: Schmitt trigger inputs for noise suppression, output slope control to eliminate ground bounce
• Cascading: Three address pins allow up to eight devices on the same bus, enabling a total address space of up to 512 Kbits.

This reliable memory component is a fundamental building block for storing configuration data, calibration settings, or user information in a vast array of electronic systems, providing a perfect balance of performance, low power consumption, and long-term reliability.