onsemi CAT24C16YI-GT3 16-Kb I2C Serial EEPROM: Features and Applications

The onsemi CAT24C16YI-GT3 is a high-performance 16-Kbit (2048 x 8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) designed for a wide range of embedded systems and consumer applications. It operates via the ubiquitous I2C (Inter-Integrated Circuit) protocol, making it an ideal choice for storing configuration parameters, calibration data, and other non-volatile information in space-constrained and power-sensitive designs.

Key Features

This EEPROM stands out due to its robust set of features tailored for modern electronics. It supports a wide voltage range from 1.7V to 5.5V, enabling compatibility with various logic levels, from low-power microcontrollers to legacy 5V systems. Its low power consumption is critical for battery-operated devices, featuring a standby current of just 1 µA (max) and an active read current of 1 mA.

The memory array is organized in 256-byte pages, allowing for efficient page write operations of up to 16 bytes. This significantly speeds up data writing compared to single-byte writes. The device also includes a built-in write-protect feature that can be activated via the WC (Write Control) pin, safeguarding critical memory contents from accidental overwrites.

For reliability, the CAT24C16YI-GT3 is specified for endurance of 1,000,000 write cycles and offers a data retention period of 100 years. It is housed in a space-saving 8-lead TSSOP package, making it suitable for high-density PCB layouts. Furthermore, it supports clock frequencies up to 400 kHz (Fast-mode), ensuring rapid data transfer.

Primary Applications

The versatility of the CAT24C16YI-GT3 makes it a cornerstone component across numerous industries.

Consumer Electronics: Used in smart TVs, set-top boxes, audio systems, and appliances to store user settings, channel lists, and operational parameters.

Automotive Systems: Employed in infotainment, instrument clusters, and body control modules for storing calibration data and event logs, meeting rigorous automotive quality requirements.

Industrial Automation: Integral to PLCs, sensors, and measurement equipment for holding configuration data and maintaining operational state through power cycles.

Internet of Things (IoT): A perfect fit for IoT nodes and wearables due to its low power consumption and small form factor, storing network credentials and sensor data.

Telecommunications: Used in routers, switches, and base stations for storing MAC addresses, configuration data, and firmware updates.

ICGOODFIND: The onsemi CAT24C16YI-GT3 is a highly reliable and versatile I2C Serial EEPROM that excels in low-power operation, offers robust data integrity, and provides a critical non-volatile memory solution for a vast spectrum of modern electronic applications.

Keywords: I2C EEPROM, Non-volatile Memory, Low-power Consumption, Page Write, Data Retention