Overview
The 24LC024-I/ST is a 2-Kbit serial EEPROM manufactured by Microchip Technology. It is part of the 24XX series, known for its reliability and low-power operation. This device is designed to store small amounts of non-volatile data, making it ideal for applications where configuration settings or calibration data need to be retained even when power is removed. The 24LC024-I/ST communicates via the I2C protocol, which simplifies integration with microcontrollers and other digital systems. Its compact ST package (8-lead SOIC) is suitable for space-constrained designs. The EEPROM operates over a wide voltage range (1.7V to 5.5V), ensuring compatibility with various power supplies.
Structure and Working Principle
The 24LC024-I/ST consists of a memory array organized as 256 x 8 bits, accessed via a two-wire I2C interface (SCL and SDA). The device includes an on-chip voltage regulator, enabling stable operation across its voltage range. Data is written and read in byte or page (16 bytes) modes, with built-in write protection features to prevent accidental data corruption. Internally, the EEPROM uses floating-gate transistor technology to retain data without power. Each memory cell can endure at least 1 million erase/write cycles, with data retention exceeding 200 years. The I2C interface supports clock frequencies up to 400 kHz, allowing for efficient data transfer.
Key Features
The 24LC024-I/ST offers several standout features, including a wide operating voltage range (1.7V to 5.5V), making it versatile for battery-powered and low-voltage applications. Its low standby current (1 µA typical) minimizes power consumption, which is critical for portable and energy-efficient designs. The device also includes hardware write protection (WP pin) to safeguard stored data. With an industrial temperature range (-40°C to +85°C), it performs reliably in harsh environments. Additionally, its 8-lead SOIC package is RoHS compliant, meeting environmental and safety standards.
Application Areas
The 24LC024-I/ST is widely used in industrial automation, automotive systems, and consumer electronics. In industrial applications, it stores calibration data for sensors and actuators. Automotive systems use it for configuration settings in infotainment and control modules. Consumer electronics, such as smart home devices and wearables, leverage its low-power operation for storing user preferences and firmware updates. Medical devices also benefit from its reliability and non-volatile memory capabilities. Its small footprint and I2C interface make it a popular choice for embedded systems.
Maintenance and Precautions
To ensure longevity, avoid exposing the 24LC024-I/ST to excessive static electricity or voltage spikes. Proper ESD handling procedures should be followed during installation and maintenance. Soldering should adhere to recommended temperature profiles to prevent damage to the device. Regularly back up critical data stored in the EEPROM, especially in high-write-cycle applications. While the device is robust, frequent write operations can eventually wear out the memory cells. Use the write protection feature to prevent accidental data corruption during firmware updates or system resets.
B2B Procurement Guide
When procuring the 24LC024-I/ST, verify the supplier's authenticity to avoid counterfeit components. Microchip Technology or authorized distributors are recommended sources. Bulk purchases typically offer cost savings, but ensure the components are stored in anti-static packaging to prevent damage. Check lead times and minimum order quantities (MOQs) to align with production schedules. For custom requirements, such as tape-and-reel packaging, confirm availability with the supplier. Pricing varies based on volume and market conditions, so request up-to-date quotes before placing orders.
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