{"title":"Adafruit 24LC32 I2C EEPROM Breakout -  32Kbit / 4 KB - Stemma QT","handle":"adafruit-24lc32-i2c-eeprom-breakout-32kbit-4-kb-stemma-qt","url":"/products/adafruit-24lc32-i2c-eeprom-breakout-32kbit-4-kb-stemma-qt","description":"The Adafruit 24LC32 I2C EEPROM Breakout provides 32 Kbit (4 KB) of reliable, non-volatile storage over a simple I2C interface. Store calibration values, MAC addresses, access tokens, or any data that needs to persist through power cycles and firmware updates — without the page-write constraints of flash memory.\n\nBuilt around the CAT24C32 (or equivalent) EEPROM chip, this breakout supports single-byte writes as well as faster 32-byte page writes. STEMMA QT / Qwiic connectors make wiring effortless — just plug in a compatible cable with no soldering required. Three address jumpers allow up to eight EEPROMs on the same I2C bus.\n\nKey Features\n\n\n32 Kbit (4 KB) EEPROM – Organised as 4,096 words of 8 bits each\n\nI2C Interface – Up to 1 MHz clock speed; default address 0x50\n\nSingle-Byte and Page Write – Write one byte at a time or up to 32 bytes per page\n\n1 Million Write Cycles – Durable and long-lasting storage\n\nSTEMMA QT / Qwiic Connectors – Plug-and-play I2C with no soldering\n\nChainable – 3 address jumpers allow up to 8 devices on the same bus\n\n2-5V Power and Logic – Compatible with virtually any microcontroller or microcomputer\n\nIndependent of Flash – Data persists through firmware uploads and power cycles\n\n\nIdeal For\n\nStoring calibration data and device configuration\nMAC addresses, access tokens, and unique identifiers\nData logging with non-volatile persistence\nProjects on ARM Cortex microcontrollers without built-in EEPROM\n\n\nPackage Contents\n\n1× Adafruit 24LC32 I2C EEPROM Breakout\n\n\n\nNote: STEMMA QT / Qwiic cable not included. Standard header is also included for breadboard use.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2993,"title":"Default Title","sku":"AF-5146","price":8.09,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}