{"product_id":"ds3231sn-real-time-clock-chip-10pcs-i2c-soic-16-rtc","title":"DS3231SN RTC Chip 10PCS – I2C SOIC-16 Real Time Clock IC","description":"\u003ch2\u003eDS3231SN Real Time Clock ICs – 10-Piece Pack\u003c\/h2\u003e\n\u003cp\u003eKeep your electronics projects perfectly synchronized with this 10-piece pack of \u003cstrong\u003eDS3231SN Real Time Clock (RTC) chips\u003c\/strong\u003e. The DS3231 is a highly accurate, low-power I²C RTC IC housed in a SOIC-16-300mil package — a go-to component for Arduino projects, embedded systems, data loggers, industrial controllers, and DIY electronics builds.\u003c\/p\u003e\n\n\u003cp\u003eWith a built-in temperature-compensated crystal oscillator (TCXO), the DS3231SN delivers exceptional timekeeping accuracy across a wide temperature range, making it one of the most reliable RTC chips available for both hobbyist and professional use.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e Integrated TCXO ensures ±2ppm accuracy from 0°C to +40°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI²C Interface:\u003c\/strong\u003e Simple two-wire communication compatible with Arduino, Raspberry Pi, and most microcontrollers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSOIC-16-300mil Package:\u003c\/strong\u003e Industry-standard SMD footprint for easy PCB integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Backup Ready:\u003c\/strong\u003e Maintains accurate timekeeping even when main power is interrupted\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Operates from 2.3V to 5.5V — versatile across platforms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo Programmable Alarms:\u003c\/strong\u003e Set time-based triggers for automation and wake-up functions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Sensor Output:\u003c\/strong\u003e Built-in sensor readable over I²C for environmental monitoring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack of 10:\u003c\/strong\u003e Great value for prototyping, batch production, or stocking your component drawer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDS3231SN\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eI²C (400kHz Fast Mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSOIC-16-300mil\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.3V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2ppm (0°C to +40°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 pieces per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi RTC modules\u003c\/li\u003e\n  \u003cli\u003eData loggers and time-stamping systems\u003c\/li\u003e\n  \u003cli\u003eIndustrial automation and PLCs\u003c\/li\u003e\n  \u003cli\u003eAlarm clocks and timers\u003c\/li\u003e\n  \u003cli\u003eIoT devices and smart home controllers\u003c\/li\u003e\n  \u003cli\u003eBattery-backed timekeeping circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the DS3231SN chip used for in electronics projects?\u003c\/h4\u003e\n\u003cp\u003eA: The DS3231SN is a precision Real Time Clock (RTC) IC used to keep accurate track of the current time and date in electronic circuits. It is widely used in Arduino, Raspberry Pi, and other microcontroller-based projects for data logging, alarm systems, time-stamping, and any application that requires reliable, battery-backed timekeeping.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the DS3231SN compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The DS3231SN uses the standard I²C (two-wire) interface operating up to 400kHz, making it fully compatible with Arduino, Raspberry Pi, ESP32, STM32, and virtually any microcontroller platform that supports I²C communication. Libraries are widely available for quick integration.\u003c\/p\u003e\n\u003ch4\u003eQ: What package type is this DS3231 chip, and how is it soldered?\u003c\/h4\u003e\n\u003cp\u003eA: This DS3231SN comes in a SOIC-16-300mil surface-mount package. It is designed for reflow or hand soldering directly onto a PCB. The wide 300mil body spacing makes hand soldering manageable even without specialist equipment.\u003c\/p\u003e\n\u003ch4\u003eQ: Why buy a 10-piece pack of DS3231SN chips?\u003c\/h4\u003e\n\u003cp\u003eA: Purchasing a 10-piece pack offers excellent value for makers, engineers, and educators who need multiple units for batch PCB production, prototyping spares, classroom kits, or simply to keep components on hand for future projects. Each chip in this pack is the same genuine DS3231SN part.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the DS3231SN chip used for in electronics projects?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The DS3231SN is a precision Real Time Clock (RTC) IC used to keep accurate track of the current time and date in electronic circuits. 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