Maxim DS3231SN#T&R

时钟/日历警报器，闰年，方波输出，TCXO/晶体

Overview

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.

Features

Tape & Reel (TR) Package
Clock/Calendar Type
Alarm, Leap Year, Square Wave Output, TCXO/Crystal Features
HH:MM:SS (12/24 hr) Time Format
2.3V ~ 5.5V Voltage - Supply
2.3V ~ 5.5V Voltage - Supply, Battery
110µA ~ 170µA @ 3.63V ~ 5.5V Current - Timekeeping (Max)
Surface Mount Mounting Type