AT24C02D-MAHM-T is a 2Kbit low-power I2C EEPROM for parameter storage in consumer, industrial and IoT devices
Specifications
Manufacturer:
Microchip Technology
Product Number:
AT24C02D-MAHM-T
Description:
IC EEPROM 2KBIT I2C 1MHZ 8UDFN
Introduction
AT24C02D-MAHM-T - 2Kbit Low-Power I2C EEPROM
A 2Kbit low-power I2C EEPROM designed for parameter storage in consumer, industrial, and IoT devices.
Product Overview
The AT24C02D-MAHM-T is a 2-Kbit (256 * 8-bit) serial Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by Microchip Technology. It utilizes an I²C (2-wire) serial interface, operates at a supply voltage of 1.7V to 3.6V, and is packaged in an 8-pin UDFN (MINIMAP) surface-mount housing, suitable for industrial and consumer electronic applications.
Core Functions
- Non-Volatile Data Storage: Retains data for over 100 years without power and supports more than 1,000,000 erase/write cycles per cell, ensuring long-term reliability.
- I²C Communication Interface: Compatible with the I²C protocol, supporting a maximum clock frequency of 400 kHz (at 1.7V) or 1 MHz (at >2.5V). Up to 8 devices can be connected to the same bus via address pins (A0/A1/A2).
- Low-Power Operation: Features ultra-low power consumption: 0.15 mA (typ) read current, 0.2 mA (typ) write current, and 0.1 μA (typ) standby current, ideal for battery-powered devices.
- Hardware Write Protection: Equipped with a write-protect pin to prevent accidental data overwriting and ensure data security.
- Page Write Buffer: Contains an 8-byte page write buffer, enabling efficient multi-byte writes in a single operation.
- Wide Operating Temperature: Operates stably in the -40°C to 85°C industrial temperature range.
Typical Applications
- Consumer Electronics: Stores configuration parameters (TV settings, camera calibration data, remote control codes) and user data.
- Industrial Control & Sensors: Saves sensor calibration values, device IDs, system configuration data, and process parameters for data logging and system recovery.
- Smart Home & Wearables: Stores user credentials, device pairing information, and firmware configuration in smart speakers, wearables, and IoT devices.
- Automotive Electronics: Preserves calibration data, fault codes, and configuration settings in automotive ECUs, sensors, and infotainment systems.
- Communication Devices: Stores network settings, MAC addresses, and device configuration data in routers, modems, and wireless modules.
- Battery-Powered Devices: Ideal for low-power scenarios such as medical devices, portable instruments, and battery-operated sensors due to ultra-low standby power.
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