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24AA16

MCHP24AA16

Microchip Technology
I2C 16-Kbit EEPROM alternative if your design prefers I2C instead of SPI
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Overview

The 24AA16 is a 16-Kbit I2C serial EEPROM capable of operating across a wide voltage range of 1.7V to 5.5V. It is organized as eight blocks of 256 x 8-bit memory, providing reliable non-volatile storage for applications requiring low power consumption and high endurance. This device is AEC-Q100 qualified, making it suitable for automotive and industrial environments where robust data retention is critical.

Why Choose This Part

This EEPROM offers high durability with over 1 million erase/write cycles and data retention exceeding 200 years. Its low-power performance is notable, featuring a standby current of only 1 uA and a read current of 1 mA at 5.5V. The inclusion of a 16-byte page write buffer and hardware write-protect pin simplifies data management and security.

Applications

Configuration Storage
Storing calibration constants, user settings, and network addresses in embedded systems.
Automotive Modules
Retaining sensor calibration data and error logs in ADAS or CAN bus nodes requiring AEC-Q100 reliability.
Consumer Electronics
Managing state information and preset values in battery-powered handheld devices.
Industrial Controls
Recording operational parameters and cycle counts in harsh electrical environments with Schmitt trigger noise suppression.

Key Specifications

Technology EEPROM
Access Time 900 ns
Memory Size 16Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Clock Frequency 400 kHz
Memory Interface I2C
Voltage - Supply 1.7V ~ 5.5V
Memory Organization 2K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package SOT-23-5
Write Cycle Time - Word, Page 5ms

Getting Started

Engineers can interface the 24AA16 with any MCU supporting I2C at 400 kHz by connecting the SDA and SCL lines with appropriate pull-up resistors. For rapid prototyping, use an Arduino or Microchip Curiosity board with an I2C library to perform byte or page writes. Ensure the WP pin is tied to VSS unless hardware write protection is required.

Also Consider

24LC16B-I/SN MCHPMicrochip Technology - A similar 16-Kbit I2C EEPROM optimized for 2.5V to 5.5V operation with higher clock speeds at lower voltages.
AT24C16D-SSHM-T MCHPMicrochip Technology - An alternative 16-Kbit I2C EEPROM with a 1.7V minimum supply voltage and high-speed mode support.
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