{"product_id":"rtc-i2c-sd2405-module-gravity","title":"DFRobot Gravity SD2405 I2C RTC Module - DFR0469","description":"\u003cdiv class=\"product-copy\"\u003e\n\n\u003cp\u003eWe're glad to introduce a new member in Gravity family: Gravity I2C SD2405 RTC module. This is an extremely accurate I2C real-time clock (RTC) with crystal compensation, inner chargeable battery. The SD2405AL is available in industrial temperature ranges.\u003c\/p\u003e\n\u003cp\u003eThe SD2405AL is dual power supply system. When the primary power supply goes down to an assigned value or resumes from low power, the system can switch between the primary power supply and battery automatically. Even there is no external power, it can still work for 5~8 years, 1uA ultra-low power consumption (inner battery, Ta=25°C).\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe SD2405AL can generates various periodic interrupt clock pulses lasting for long period (one year), and three alarm interrupts can be made by year, month, date, days of the week, hours, and minutes, seconds. It also provides a selectable 32.768KHz~1Hz clock output for an external MCU. The product incorporates a time trimming circuit that adjusts the clock with higher precision by adjusting any errors in crystal oscillator frequencies based on signals from the CPU. A 12-bytes general SRAM is implemented in the SD2405AL.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eGravity SD2405 RTC can work as data logger, timer alarm clock and other time application. It is an ideal choice for timing project. \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eSPECIFICATION\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eOperation voltage range:3.3V~5.5V.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow-power:typical 1uA (inner battery, Ta=25°C)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTiming Range: To 2099 (with leap year compensation)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccuracy ±5ppm from -40°C to +85°C.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFast (400kHz) I2C Interface(4.5~5.5V).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eReal-Time Clock Counts Seconds, Minutes,Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTime-of-Year,Month,Day,Week,Hour,Minute,Second Alarms.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eProgrammable Square-Wave Output:32768hz,4096hz...1hz..1\/16hz.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCountdown timer interrupt.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh precision time trimming circuit.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e12-hour\/24-hour time display selectable\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimension: 35.50 * 22.00(mm)\/1.4 * 0.87 inches\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 6g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eDOCUMENTS\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.dfrobot.com\/wiki\/index.php\/Gravity:_I2C_SD2405_RTC_Module_SKU:_DFR0469\" target=\"_blank\"\u003eProduct WIKI\u003c\/a\u003e \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/wiki\/index.php\/Gravity:_I2C_SD2405_RTC_Module_SKU:_DFR0469#More_Documents\" target=\"_blank\" style=\"\"\u003eMore Documents\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eSHIPPING LIST\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eGravity: I2C SD2405 RTC Module\u003cspan style=\"white-space: pre;\"\u003e\t\u003c\/span\u003ex1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGravity I2C 4-Pin Sensor Cable\u003cspan style=\"white-space: pre;\"\u003e\t\u003c\/span\u003ex1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eXH2.54-5pin header\u003cspan style=\"white-space: pre;\"\u003e\t\u003c\/span\u003ex1\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n.product-copy{line-height:1.7}\n.product-copy \u003e * + *{margin-top:1rem}\n.product-copy h2{margin:1.4em 0 .6em}\n.product-copy p{margin:0 0 1em}\n.product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n.product-copy li{margin:.35em 0}\n.product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n.product-copy table th,\n.product-copy table td{border:1px solid #eee;padding:.6em .75em;text-align:left}\n.faq-list{margin:1.2rem 0 1.4rem}\n.faq{border:1px solid #e6e6e6;border-radius:12px;padding:.75rem 1rem;margin:.6rem 0;background:#fafafa}\n.faq summary{font-weight:600;cursor:pointer}\n@media (min-width:768px){ .product-copy{font-size:1.02rem} }\n\u003c\/style\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":45813798764833,"sku":"DFR0469","price":495.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/rtc-i2c-sd2405-module-gravity-1091.jpg?v=1689672836","url":"https:\/\/circuit.rocks\/products\/rtc-i2c-sd2405-module-gravity","provider":"circuitrocks","version":"1.0","type":"link"}