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Selecting the Sample button above will redirect to the third-party ADI Sample Site. Please see the latest communication from our CCO regarding lead times. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. International prices may differ due to local duties, taxes, fees and exchange rates. (*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. (**) Displayed Buy Now Price and Price Range is based on small quantity orders. See our Ordering FAQs for answers to questions about online orders, payment options and more. Additionally, the active-low RST pin is monitored as a pushbutton input for generating a µP reset. Address and data are transferred serially through an I☬ bidirectional bus.Ī precision temperature-compensated voltage reference and comparator circuit monitors the status of V CC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Two programmable time-of-day alarms and a programmable square-wave output are provided. The clock operates in either the 24-hour or 12-hour format with an active-low AM/PM indicator. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The RTC maintains seconds, minutes, hours, day, date, month, and year information. The DS3231 is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package. 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 device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The DS3231 is a low-cost, extremely accurate I☬ real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
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