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M41T256YMH7F
Product Overview
Category
The M41T256YMH7F belongs to the category of Real-Time Clocks (RTCs).
Use
This product is primarily used for timekeeping and calendar functions in various electronic devices.
Characteristics
- High accuracy timekeeping
- Low power consumption
- Integrated oscillator
- Non-volatile memory for data storage
- Serial interface for communication
Package
The M41T256YMH7F is available in a small surface-mount package, typically measuring 8mm x 8mm.
Essence
The essence of this product lies in its ability to provide accurate timekeeping and calendar functionality with minimal power consumption.
Packaging/Quantity
The M41T256YMH7F is usually packaged in reels or trays, with quantities varying depending on customer requirements.
Specifications
- Supply voltage: 2.7V to 5.5V
- Timekeeping accuracy: ±5ppm at 25°C
- Operating temperature range: -40°C to +85°C
- Data retention: Over 10 years
- Serial interface: I2C-compatible
Detailed Pin Configuration
The M41T256YMH7F has the following pin configuration:
- VBAT - Backup power supply input
- GND - Ground
- SDA - Serial data line
- SCL - Serial clock line
- SQW/INT - Square wave output/interrupt output
- VCC - Power supply input
Functional Features
- Real-time clock with calendar functionality
- Automatic leap year compensation
- Alarm function with interrupt capability
- Battery backup for timekeeping during power loss
- Programmable square wave output
Advantages and Disadvantages
Advantages
- High accuracy timekeeping
- Low power consumption
- Compact package size
- Non-volatile memory for data storage
Disadvantages
- Limited functionality compared to more advanced RTCs
- Lack of additional features like temperature compensation
Working Principles
The M41T256YMH7F utilizes an integrated oscillator to generate accurate timekeeping signals. It relies on a backup power supply to maintain timekeeping during power loss. The device communicates with the host system through a serial interface, allowing for easy integration into various electronic devices.
Detailed Application Field Plans
The M41T256YMH7F is commonly used in applications such as:
- Consumer electronics: Digital cameras, portable media players, and smartwatches.
- Industrial automation: Programmable logic controllers (PLCs) and data loggers.
- Automotive: On-board computers, infotainment systems, and navigation devices.
- Medical devices: Patient monitoring systems and diagnostic equipment.
Detailed and Complete Alternative Models
- DS3231 - Real-Time Clock with temperature compensation and alarm functions.
- PCF8563 - Low-power Real-Time Clock with I2C interface.
- MCP7940N - Real-Time Clock with battery backup and SRAM.
These alternative models offer similar functionality to the M41T256YMH7F and can be considered based on specific application requirements.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van M41T256YMH7F in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of M41T256YMH7F in technical solutions:
Q: What is the M41T256YMH7F? A: The M41T256YMH7F is a real-time clock (RTC) module with integrated crystal, designed for accurate timekeeping in various technical applications.
Q: How does the M41T256YMH7F communicate with other devices? A: The M41T256YMH7F communicates using the I2C (Inter-Integrated Circuit) protocol, making it compatible with a wide range of microcontrollers and systems.
Q: Can the M41T256YMH7F operate on its own without an external microcontroller? A: Yes, the M41T256YMH7F has a built-in oscillator and battery backup, allowing it to function independently and maintain accurate timekeeping even when disconnected from a microcontroller.
Q: What is the accuracy of the M41T256YMH7F? A: The M41T256YMH7F offers high accuracy with a typical timekeeping deviation of only a few seconds per month.
Q: Does the M41T256YMH7F support alarms or interrupts? A: Yes, the M41T256YMH7F provides multiple alarm registers that can be programmed to trigger interrupts or set specific events at specified times.
Q: Can the M41T256YMH7F handle daylight saving time changes? A: No, the M41T256YMH7F does not have built-in functionality for handling daylight saving time changes. This needs to be implemented in the software or firmware of the connected system.
Q: What is the power supply requirement for the M41T256YMH7F? A: The M41T256YMH7F operates on a voltage range of 2.7V to 5.5V, making it compatible with a wide range of power sources.
Q: Can the M41T256YMH7F be used in battery-powered applications? A: Yes, the M41T256YMH7F has a low-power mode and a backup battery input, allowing it to be used in battery-powered applications while maintaining accurate timekeeping.
Q: Does the M41T256YMH7F have any non-volatile memory for storing additional data? A: Yes, the M41T256YMH7F provides 256 bytes of non-volatile RAM (NVRAM) that can be used to store additional data alongside the timekeeping information.
Q: Is the M41T256YMH7F suitable for industrial temperature ranges? A: Yes, the M41T256YMH7F is designed to operate reliably in industrial temperature ranges, typically from -40°C to +85°C.
Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.