Overview
The DS3231SN#T&R is a highly accurate and low-cost real-time clock (RTC) integrated circuit produced by Analog Devices Inc./Maxim Integrated. This device features an I2C interface and is known for its integrated temperature-compensated crystal oscillator (TCXO) and crystal, which enhance its long-term accuracy. The DS3231SN#T&R is designed to maintain accurate timekeeping even when the main power is interrupted, thanks to its battery input and automatic switching to the backup supply. It is available in a 16-pin SOIC package and operates within a wide temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Package / Case | 16-SOIC (0.295″, 7.50mm Width) |
| Mounting Type | Surface Mount |
| Interface | I2C, 2-Wire Serial |
| Voltage – Supply | 2.3V ~ 5.5V |
| Voltage – Supply, Battery | 2.3V ~ 5.5V |
| Current – Timekeeping (Max) | 110µA ~ 170µA @ 3.63V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd |
Key Features
- Integrated temperature-compensated crystal oscillator (TCXO) and crystal for high accuracy.
- Automatic leap year correction and date adjustment for months with fewer than 31 days.
- Alarm functionality and square wave output.
- Battery backup input to maintain timekeeping during power interruptions.
- I2C interface for easy communication.
- Operates in both 12-hour and 24-hour formats with AM/PM indicator.
Applications
- Embedded systems requiring precise timekeeping.
- Industrial control systems.
- Medical devices and equipment.
- Aerospace and defense applications.
- Consumer electronics such as smart home devices and wearables.
Q & A
- What is the DS3231SN#T&R?
The DS3231SN#T&R is a real-time clock (RTC) integrated circuit with an integrated temperature-compensated crystal oscillator (TCXO) and crystal, produced by Analog Devices Inc./Maxim Integrated.
- What is the package type of the DS3231SN#T&R?
The DS3231SN#T&R is available in a 16-pin SOIC package.
- What is the operating temperature range of the DS3231SN#T&R?
The operating temperature range is -40°C to 85°C.
- What interface does the DS3231SN#T&R use?
The DS3231SN#T&R uses an I2C, 2-Wire Serial interface.
- Does the DS3231SN#T&R support battery backup?
Yes, the DS3231SN#T&R has a battery input and automatically switches to the backup supply during power interruptions.
- What are the key features of the DS3231SN#T&R?
The key features include integrated TCXO, alarm functionality, square wave output, and automatic leap year correction.
- What are the typical applications of the DS3231SN#T&R?
Typical applications include embedded systems, industrial control systems, medical devices, aerospace, and consumer electronics.
- What is the time format supported by the DS3231SN#T&R?
The DS3231SN#T&R supports both 12-hour and 24-hour formats with an AM/PM indicator.
- How does the DS3231SN#T&R handle date adjustments?
The device automatically adjusts the date at the end of the month for months with fewer than 31 days, including corrections for leap year.
- What is the maximum current consumption for timekeeping?
The maximum current consumption for timekeeping is 110µA ~ 170µA @ 3.63V ~ 5.5V.
