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DS1347T+ - English Editing Encyclopedia Entry
Product Overview
Category: Integrated Circuit (IC)
Use: Real-Time Clock (RTC) with Battery Backup
Characteristics: - Low-power, high-precision RTC - Provides accurate timekeeping and calendar functions - Supports battery backup for uninterrupted operation - Suitable for a wide range of applications
Package: 8-pin SOIC (Small Outline Integrated Circuit)
Essence: The DS1347T+ is a highly reliable real-time clock IC that offers precise timekeeping and calendar functions. It ensures uninterrupted operation by providing battery backup.
Packaging/Quantity: The DS1347T+ is available in a standard 8-pin SOIC package. It is typically sold in reels or tubes containing multiple units.
Specifications
- Supply Voltage: 2.97V to 5.5V
- Timekeeping Accuracy: ±2 minutes per month at 25°C
- Operating Temperature Range: -40°C to +85°C
- Battery Backup Voltage: 1.8V to 5.5V
- I2C Interface: Supports standard and fast mode (100kHz and 400kHz)
- Memory: 56 bytes of non-volatile RAM (NV SRAM)
Detailed Pin Configuration
The DS1347T+ features the following pin configuration:
| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VBAT | Battery Backup Voltage Input | | 2 | GND | Ground | | 3 | SDA | I2C Serial Data Line | | 4 | SCL | I2C Serial Clock Line | | 5 | SQW/INT | Square Wave Output / Interrupt Output | | 6 | VCC | Power Supply Voltage | | 7 | NC | No Connection | | 8 | NC | No Connection |
Functional Features
- Real-time clock with calendar functions
- Battery backup for uninterrupted operation during power loss
- Programmable alarm and interrupt outputs
- Square wave output with selectable frequencies
- Power-on reset and watchdog timer functionality
- I2C interface for easy integration with microcontrollers
Advantages and Disadvantages
Advantages: - High accuracy timekeeping - Low power consumption - Wide operating temperature range - Battery backup ensures data integrity during power outages - Compact and easy-to-use package
Disadvantages: - Limited non-volatile RAM capacity (56 bytes) - Requires an external battery for backup functionality
Working Principles
The DS1347T+ utilizes a quartz crystal oscillator to generate precise timekeeping signals. It incorporates a real-time clock circuit that counts the oscillations and maintains accurate time and date information. The IC also includes non-volatile RAM to store user-defined data.
During normal operation, the DS1347T+ is powered by the main supply voltage. In case of a power failure, the IC seamlessly switches to battery backup mode, ensuring uninterrupted timekeeping and data retention.
Detailed Application Field Plans
The DS1347T+ finds applications in various fields, including but not limited to: 1. Consumer Electronics: Digital clocks, watches, and timers 2. Industrial Automation: Programmable logic controllers (PLCs), data loggers 3. Automotive: Dashboard clocks, event recorders 4. Medical Devices: Patient monitoring systems, infusion pumps 5. Communication Systems: Network equipment, routers, switches
Detailed and Complete Alternative Models
- DS3231 - Highly accurate RTC with temperature compensation
- PCF8563 - Low-power RTC with alarm and timer functions
- MCP7940N - I2C RTC with battery backup and SRAM
- DS1307 - Basic RTC with battery backup and I2C interface
These alternative models offer similar functionality to the DS1347T+ and can be considered based on specific requirements.
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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng DS1347T+ sa mga teknikal na solusyon
Sure! Here are 10 common questions and answers related to the application of DS1347T+ in technical solutions:
Q: What is DS1347T+? A: DS1347T+ is a real-time clock (RTC) module manufactured by Maxim Integrated. It provides accurate timekeeping and calendar functions for various technical applications.
Q: How does DS1347T+ connect to a microcontroller or system? A: DS1347T+ can be connected to a microcontroller or system using an I2C interface. It communicates with the host device through the SDA (data) and SCL (clock) lines.
Q: Can DS1347T+ operate on its own without a microcontroller? A: Yes, DS1347T+ has an integrated oscillator and battery backup, allowing it to function independently without a microcontroller. It can maintain accurate timekeeping even when disconnected from the host system.
Q: What is the accuracy of DS1347T+? A: DS1347T+ offers high accuracy with a typical timekeeping deviation of ±2 minutes per year. This makes it suitable for applications that require precise timekeeping.
Q: Does DS1347T+ support alarms or interrupts? A: Yes, DS1347T+ features programmable alarms and interrupt outputs. These can be configured to trigger specific actions or wake up the microcontroller/system at predefined times.
Q: Can DS1347T+ handle daylight saving time changes? A: Yes, DS1347T+ supports automatic daylight saving time adjustments. It can be programmed to update the time accordingly based on predefined rules.
Q: What is the power supply requirement for DS1347T+? A: DS1347T+ operates on a supply voltage range of 2.97V to 5.5V. It can be powered by a standard coin cell battery or an external power source.
Q: Does DS1347T+ have non-volatile memory for storing time and date information? A: Yes, DS1347T+ has built-in non-volatile memory that retains time and date information even when the power is disconnected. This ensures data integrity during power cycles.
Q: Can DS1347T+ be used in temperature-sensitive applications? A: Yes, DS1347T+ has an integrated temperature sensor that allows compensation for temperature variations. This feature enhances the accuracy of timekeeping in temperature-sensitive environments.
Q: Are there any development tools or libraries available for DS1347T+ integration? A: Maxim Integrated provides software libraries, example code, and development tools to facilitate the integration of DS1347T+ into various microcontroller platforms. These resources help streamline the implementation process.
Please note that these answers are general and may vary depending on specific implementation details and requirements.