Overview
The M41T0DS6E is a low-power serial real-time clock (RTC) produced by STMicroelectronics. This device is designed to provide accurate timekeeping and calendar functions, making it suitable for a wide range of applications. The M41T0DS6E features a built-in 32.768 kHz oscillator that is controlled by an external crystal, ensuring high stability and accuracy. It operates as a slave device on an I2C bus, supporting a 400 kHz protocol, and is available in an 8-lead plastic small outline package (SO8).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 2.0 to 5.5 | V |
| Ambient Operating Temperature (TA) | –40 to 85 | °C |
| Oscillator Frequency | 32.768 kHz | |
| Load Capacitance (CL) | 12.5 pF | pF |
| Series Resistance (RS) | 60 kΩ (typ) | kΩ |
| Standby Current (ICC2) | 0.9 µA (typ at 3 V) | µA |
| Input Leakage Current (ILI) | ±1 µA | µA |
| Output Leakage Current (ILO) | ±1 µA | µA |
| Input Low Voltage (VIL) | –0.3 to 0.3 VCC | V |
| Input High Voltage (VIH) | 0.7 VCC to VCC + 0.3 | V |
Key Features
- Counters for seconds, minutes, hours, day, date, month, years, and century in binary coded decimal (BCD) format.
- 32 kHz crystal oscillator with integrated load capacitance for high oscillator stability.
- Oscillator stop detection to monitor clock operation.
- Serial interface supporting I2C bus protocol at 400 kHz.
- Low standby current of 0.9 µA (typ at 3 V).
- Special software programmable output.
- Operating temperature range of –40 to 85 °C.
- Automatic increment of the built-in address register after each WRITE or READ data byte.
Applications
The M41T0DS6E is suitable for various applications requiring accurate timekeeping and calendar functions, such as:
- Consumer electronics (e.g., smart home devices, wearables).
- Industrial automation and control systems.
- Medical devices and healthcare equipment.
- Automotive systems (e.g., infotainment, navigation).
- IoT devices and smart sensors.
Q & A
- What is the operating voltage range of the M41T0DS6E?
The operating voltage range is 2.0 to 5.5 V. - What is the frequency of the oscillator in the M41T0DS6E?
The oscillator frequency is 32.768 kHz. - What is the typical standby current of the M41T0DS6E?
The typical standby current is 0.9 µA at 3 V. - What communication protocol does the M41T0DS6E support?
The M41T0DS6E supports the I2C bus protocol at 400 kHz. - What is the operating temperature range of the M41T0DS6E?
The operating temperature range is –40 to 85 °C. - How is the address register incremented in the M41T0DS6E?
The built-in address register is incremented automatically after each WRITE or READ data byte. - What type of package is the M41T0DS6E available in?
The M41T0DS6E is available in an 8-lead plastic small outline package (SO8). - Does the M41T0DS6E have built-in load capacitance for the oscillator?
Yes, the M41T0DS6E has integrated load capacitance for the oscillator. - How does the oscillator stop detection work in the M41T0DS6E?
The oscillator stop detection monitors the clock operation to ensure it is functioning correctly. - Can the output of the M41T0DS6E be software-programmable?
Yes, the output of the M41T0DS6E can be software-programmable.
