{"product_id":"ds3231m-rtc-eeprom-module-i2c","title":"DS3231M RTC Module with AT24C32 EEPROM — I2C, Arduino","description":"\u003ch2\u003eDS3231M RTC Module with AT24C32 EEPROM — I2C, Arduino\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDS3231M RTC module\u003c\/strong\u003e combines a \u003cstrong\u003eMaxim DS3231M MEMS real-time clock\u003c\/strong\u003e with an \u003cstrong\u003eAT24C32 32Kbit EEPROM\u003c\/strong\u003e on a single I2C board. The DS3231M uses an integrated MEMS resonator — no external crystal needed — with \u003cstrong\u003e±2ppm accuracy\u003c\/strong\u003e (±1 minute\/year). Includes a \u003cstrong\u003eCR2032 battery backup\u003c\/strong\u003e to maintain time when main power is off.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRTC IC: \u003cstrong\u003eDS3231M\u003c\/strong\u003e | Accuracy: \u003cstrong\u003e±2ppm (±1 min\/year)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eEEPROM: \u003cstrong\u003eAT24C32 (32Kbit \/ 4KB)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInterface: \u003cstrong\u003eI2C (0x68 RTC \/ 0x57 EEPROM)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBattery: \u003cstrong\u003eCR2032 backup\u003c\/strong\u003e | Supply: \u003cstrong\u003e3.3–5V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature sensor: \u003cstrong\u003e±3°C accuracy\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAlarms: \u003cstrong\u003e2 programmable alarms\u003c\/strong\u003e | SQW output: \u003cstrong\u003e1Hz \/ 4kHz \/ 8kHz \/ 32kHz\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompliance: \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e±2ppm MEMS accuracy\u003c\/strong\u003e — no crystal drift, more stable than DS1307\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAT24C32 EEPROM\u003c\/strong\u003e — store configuration data and timestamps\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBattery backup\u003c\/strong\u003e — maintains time through power outages\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eRTClib compatible\u003c\/strong\u003e — extensive Arduino community support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino clock and calendar projects\u003c\/li\u003e\n\u003cli\u003eData logger timestamp recording\u003c\/li\u003e\n\u003cli\u003eScheduled automation and alarm systems\u003c\/li\u003e\n\u003cli\u003eIoT time synchronization backup\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45669148197099,"sku":"","price":16.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/DS3231M-with-EEPROM-Module.jpg?v=1723009670","url":"https:\/\/keszoox.com\/products\/ds3231m-rtc-eeprom-module-i2c","provider":"Keszoox","version":"1.0","type":"link"}