{"product_id":"at24c02-i2c-eeprom-sop8-2kbit-256-bytes-2-7v-1m-cycles-5pack","title":"AT24C02 I²C EEPROM Memory IC — SOP-8, 2Kbit (256 Bytes), 2.7V, 1M Cycles (5-Pack)","description":"\u003ch2\u003eAT24C02 I²C EEPROM Memory IC — SOP-8, 2Kbit (256 Bytes), 2.7V (5-Pack)\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAT24C02\u003c\/strong\u003e from Microchip (formerly Atmel) is a 2Kbit (256-byte) I²C serial EEPROM in SOP-8 SMD package — the most widely used EEPROM for storing non-volatile configuration data, calibration values, and user settings in embedded systems. Three address pins (A0–A2) allow up to 8 AT24C02 devices on a single I²C bus. 1 million write cycle endurance and 100-year data retention. Pack of 5.\u003c\/p\u003e\n\n\u003ch3\u003eMemory Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e AT24C02 \/ AT24C02BN \/ 24C02N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-8 (SMD, 1.27mm pitch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 2Kbit = 256 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e I²C (2-wire: SDA + SCL)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI²C Address:\u003c\/strong\u003e 0x50–0x57 (set by A0–A2 pins)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 2.7V – 5.5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Clock:\u003c\/strong\u003e 400kHz (Fast mode)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePage Size:\u003c\/strong\u003e 8 bytes (page write)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWrite Endurance:\u003c\/strong\u003e 1,000,000 cycles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e 100 years\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWrite Protect:\u003c\/strong\u003e Hardware WP pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 5 ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eArduino Usage\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eVCC → 3.3V\/5V | GND → GND | SDA → A4 | SCL → A5\u003c\/li\u003e\n  \u003cli\u003eA0–A2 to GND for address 0x50 (default)\u003c\/li\u003e\n  \u003cli\u003eUse Wire library: \u003ccode\u003eWire.beginTransmission(0x50);\u003c\/code\u003e\n\u003c\/li\u003e\n  \u003cli\u003eOr use AT24C02 library from Arduino Library Manager\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAT24C02 vs AT24C32 vs AT24C256\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAT24C02 (this IC):\u003c\/strong\u003e 256 bytes — for device settings, calibration, small config data\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAT24C32:\u003c\/strong\u003e 4KB — for RTC module data logging (DS3231 companion)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAT24C256:\u003c\/strong\u003e 32KB — for larger data storage and firmware parameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino non-volatile configuration storage\u003c\/li\u003e\n  \u003cli\u003eSensor calibration data storage\u003c\/li\u003e\n  \u003cli\u003eDevice serial number and MAC address storage\u003c\/li\u003e\n  \u003cli\u003eUser settings retention across power cycles\u003c\/li\u003e\n  \u003cli\u003eRTC module companion EEPROM (DS3231 + AT24C32)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAT24C02 I²C EEPROM, 5-pack — SOP-8, 256 bytes, 2.7–5.5V, 1M write cycles for Arduino non-volatile config storage and embedded data logging.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991449424107,"sku":"\u003cnone\u003e","price":4.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/at24c02-eeprom-memory-ic-2-7v-sop-8-24c02n-at24c02bn.webp?v=1761802273","url":"https:\/\/keszoox.com\/products\/at24c02-i2c-eeprom-sop8-2kbit-256-bytes-2-7v-1m-cycles-5pack","provider":"Keszoox","version":"1.0","type":"link"}