DS3231M+

Interface:	I²C, 2-Wire Serial
Base Part Number:	DS3231
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	130µA ~ 200µA @ 3.63V ~ 5.5V
Voltage - Supply, Battery:	2.3 V ~ 5.5 V
Voltage - Supply:	2.3 V ~ 5.5 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (12/24 hr)
Memory Size:	--
Features:	Alarm, Leap Year, Square Wave Output
Type:	Clock/Calendar
Part Status:	Active
Packaging:	Tube

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The DS3231M+ is a real-time clock/calendar module based on the Maxim/Dallas DS3231M IC, which includes an integrated temperature-compensated voltage reference and crystal oscillator. This module is specifically designed to replace the DS3231M and other DS32xxM family real-time clock/calendar ICs in a variety of products. The DS3231M+ provides reliability and accuracy for time-keeping applications and is designed to reduce the cost and complexity of designs that require date and time information. It is comprised of two components – the crystal oscillator and the integrated voltage reference – that are designed to deliver high accuracy and reliability. The DS3231M+ offers a clock/calendar feature with an accuracy of ±2PPM over the -40°C to +85°C temperature range. The clock/calendar can be used to store the current time or a specific time interval, while the temperature-compensated voltage reference eliminates the need for the external components necessary to produce a stable time reference. The clock/calendar in the DS3231M+ can be programmed to deliver an interrupt pulse on one of the four 256-bit addresses or, if configured, on an individual bit in any of the available addresses. There are several clocks available on the chip, which can be used to keep time in minutes, hours, days, and so on. The DS3231M+ also offers an alarm feature with user-programmable alarm times for weekday, date, and day of the week. There are three independently programmable alarms and a power-fail detect (PFD) feature, which can be enabled by software. In addition to its clock/calendar and alarm features, the DS3231M+ also offers hardware watchdog and timer events that can be triggered to detect microprocessor reset operations and interrupt events. The hardware watchdog and timers can also be used to reset microprocessors or to detect and log system events. The DS3231M+ also offers a temperature sensor and a power monitor, which monitor and take readings of the temperature and power status of the board. The temperature and voltage readings can be used to ensure device temperature stability and improve design reliability. The DS3231M+ is compatible with a wide range of products, including medical, automotive, telecommunication, and consumer applications, and can be used to replace other real-time clock/calendar ICs in various designs. In addition, the DS3231M+ is suitable for use in microcontroller (MCU) based systems, where the integration of the crystal oscillator and voltage reference can reduce the layout space, BOM cost and design time.The Maxim/Dallas DS3231M+ real-time clock is ideal for time-keeping applications that require high accuracy and reliability. It contains an integrated temperature-compensated voltage reference and crystal oscillator, as well as an alarm feature with user-programmable alarm times. In addition, the DS3231M+ includes several clocks, a power monitor and temperature sensor, and a power-fail detect feature. The DS3231M+ is compatible with a wide range of products and can be used to replace other real-time clock/calendar ICs in various designs.

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