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ماژول ساعت دقیق DS3231 با رابط I2C

( 201115001 )
ماژول ساعت دقیق همراه با تراشه DS3231 با پروتکل ارتباطی I2C

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ماژول ساعت دقیق DS3231 با رابط I2C

ماژول ساعت دقیق DS3231 با رابط I2C با استفاده از تراشه DS3231 ساخته شده است که خود این تراشه علی رغم قیمت ارزانی که در بازار دارد ، دارای کیفیت و دقت بسیار بالایی در بین تراشه های (RTC) میباشد . این تراشه با پروتکل I2C با میکروی پردازنده ارتباط برقرار میکند . در آنطرف فیبر این ماژول از یک باتری ذخیره (Back-up) استفاده شده است . این باتری ذخیره برای زمانی است که اگر برق اصلی ماژول قطع شد ، ساعت و زمان واقعی تراشه از دست نرود و همچنان زمان واقعی را در خود نگه دارد تا زمانی که برق اصلی وصل بشود .

Description

The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3231 is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package. The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an active-low AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I²C bidirectional bus. A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the active-low RST pin is monitored as a pushbutton input for generating a µP reset.

Key Features

Accuracy ±۲ppm from 0°C to +40°C Accuracy ±۳٫۵ppm from -40°C to +85°C Battery Backup Input for Continuous Timekeeping Operating Temperature Ranges Commercial: 0°C to +70°C Industrial: -40°C to +85°C Low-Power Consumption Real-Time Clock Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100 Two Time-of-Day Alarms Programmable Square-Wave Output Fast (400kHz) I²C Interface ۳٫۳V Operation Digital Temp Sensor Output: ±۳°C Accuracy Register for Aging Trim Active-Low RST Output/Pushbutton Reset Debounce Input