Overview
The M41T62Q6F is a low-power serial real-time clock (RTC) produced by STMicroelectronics. This component is part of the M41T6x series, which includes the M41T62, M41T64, and M41T65 models. The M41T62Q6F features a built-in 32.768 kHz oscillator and supports various functions such as time-of-day clock/calendar, alarm interrupts, and watchdog timers. It is designed for applications requiring precise timekeeping and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Interface | 400 kHz I²C serial interface |
| Oscillator Frequency | 32.768 kHz |
| Package Options | 3 x 3 mm 16-pin QFN, 1.5 x 3.2 mm 8-pin ceramic leadless chip carrier (LCC) with embedded crystal |
| Operating Temperature | -40 to +85 °C |
| Timekeeping Accuracy | ± 2 parts per million (± 5 seconds per month) |
| Alarm Functions | Yes, with interrupt capability |
| Watchdog Timer | Yes, programmable from 62.5 ms to 31 minutes |
| 32 kHz Output | Yes |
| Square Wave Output | Yes |
| IRQ Output | Yes |
| WDO Output | Yes |
Key Features
- Low power consumption
- Built-in 32.768 kHz oscillator
- Automatic leap year compensation
- Software clock calibration
- Oscillator stop detection
- Programmable watchdog timer
- Alarm interrupt and square wave output capabilities
- Memory mapped registers for seconds, minutes, hours, etc., in BCD format
Applications
The M41T62Q6F is suitable for a variety of applications that require precise timekeeping and low power consumption, such as:
- Consumer electronics (e.g., smart home devices, wearables)
- Industrial automation and control systems
- Medical devices
- Automotive systems
- IoT devices
Q & A
- What is the primary function of the M41T62Q6F? The primary function of the M41T62Q6F is to provide a low-power serial real-time clock (RTC) with various additional features like alarm interrupts and watchdog timers.
- What is the operating temperature range of the M41T62Q6F? The operating temperature range is -40 to +85 °C.
- Does the M41T62Q6F have a built-in oscillator? Yes, it has a built-in 32.768 kHz oscillator.
- What are the package options for the M41T62Q6F? The component is available in a 3 x 3 mm 16-pin QFN package and a 1.5 x 3.2 mm 8-pin ceramic leadless chip carrier (LCC) with an embedded crystal.
- How accurate is the timekeeping of the M41T62Q6F? The timekeeping accuracy is ± 2 parts per million (± 5 seconds per month).
- Does the M41T62Q6F support alarm functions? Yes, it supports alarm functions with interrupt capability.
- Is there a watchdog timer in the M41T62Q6F? Yes, it has a programmable watchdog timer from 62.5 ms to 31 minutes.
- Can the M41T62Q6F output a 32 kHz signal? Yes, it can output a 32 kHz signal.
- Does the M41T62Q6F support software clock calibration? Yes, it supports software clock calibration.
- What interface does the M41T62Q6F use for communication? The M41T62Q6F uses a 400 kHz I²C serial interface for communication.
