Overview
The DS3231MZ/V+T is a highly accurate, low-cost I2C real-time clock (RTC) produced by Analog Devices Inc./Maxim Integrated. This device is designed to provide precise timekeeping and is particularly suited for applications requiring high reliability and accuracy. It incorporates a battery input to maintain timekeeping even when the main power is interrupted. The DS3231MZ/V+T is available in an 8-pin SOIC package and is automotive qualified, meeting the AEC-Q100 standard.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Timekeeping Accuracy | ±5ppm (±0.432 second/day) from -45°C to +85°C | ±5ppm |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C |
| Package Type | 8-Pin SOIC | 8-Pin SOIC |
| Minimum Operating Supply Voltage | 2.3V | 2.3V |
| Maximum Operating Supply Voltage | 5.5V | 5.5V |
| I2C Interface Speed | Up to 400kHz | Up to 400kHz |
| Alarm Functions | Two time-of-day alarms | Two time-of-day alarms |
| Output Signals | 1Hz and 32.768kHz outputs | 1Hz and 32.768kHz outputs |
| Digital Temperature Sensor | Yes | Yes |
| Battery Backup | Battery input for continuous timekeeping | Battery input for continuous timekeeping |
Key Features
- Highly accurate timekeeping with ±5ppm accuracy from -45°C to +85°C.
- Integrated battery input for continuous timekeeping during power interruptions.
- Fast I2C interface up to 400kHz.
- Two time-of-day alarms and 1Hz and 32.768kHz output signals.
- Digital temperature sensor.
- Automotive qualified, meeting the AEC-Q100 standard.
- Leap-year compensation up to year 2100.
- Low power operation to extend battery-backup run time.
Applications
The DS3231MZ/V+T is suitable for a variety of applications requiring precise timekeeping, including:
- Automotive systems: Due to its AEC-Q100 qualification, it is ideal for use in automotive environments.
- Industrial control systems: Where accurate timekeeping is critical for logging and scheduling tasks.
- Medical devices: For applications requiring precise timing and logging of events.
- Consumer electronics: Such as smart home devices, wearables, and other IoT devices.
Q & A
- What is the accuracy of the DS3231MZ/V+T real-time clock?
The DS3231MZ/V+T has an accuracy of ±5ppm (±0.432 second/day) from -45°C to +85°C.
- What type of package is the DS3231MZ/V+T available in?
The DS3231MZ/V+T is available in an 8-pin SOIC package.
- Does the DS3231MZ/V+T support battery backup?
- What is the operating temperature range of the DS3231MZ/V+T?
- Is the DS3231MZ/V+T automotive qualified?
- What is the speed of the I2C interface on the DS3231MZ/V+T?
- Does the DS3231MZ/V+T have alarm functions?
- What output signals does the DS3231MZ/V+T provide?
- Does the DS3231MZ/V+T include a digital temperature sensor?
- How does the DS3231MZ/V+T handle leap years?
