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DS14285N
Product Overview
- Category: Integrated Circuit
- Use: Real-Time Clock (RTC)
- Characteristics:
- Low power consumption
- High accuracy
- Small package size
- Package: DIP (Dual In-line Package)
- Essence: Provides accurate timekeeping functionality for various electronic devices
- Packaging/Quantity: Available in reels of 2500 units
Specifications
- Supply Voltage: 2.7V 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 Bus Interface: Supports standard and fast mode (100kHz and 400kHz)
Detailed Pin Configuration
The DS14285N has a total of 16 pins, which are as follows:
- VCC - Power supply voltage input
- GND - Ground reference
- SDA - Serial Data Line for I2C communication
- SCL - Serial Clock Line for I2C communication
- IRQ - Interrupt Request output
- SQW/OUT - Square Wave Output or General Purpose Output
- VBAT - Battery backup voltage input
- X1 - Crystal oscillator input
- X2 - Crystal oscillator output
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
Functional Features
- Real-time clock with calendar functionality
- Automatic leap year compensation
- Alarm and timer functions
- Programmable square wave output
- Battery backup support for timekeeping during power loss
- I2C interface for easy integration with microcontrollers
Advantages and Disadvantages
Advantages: - Low power consumption extends battery life - High accuracy ensures precise timekeeping - Small package size allows for space-efficient designs - I2C interface simplifies communication with other devices
Disadvantages: - Limited timekeeping accuracy at extreme temperatures - Lack of non-volatile memory for storing additional data
Working Principles
The DS14285N utilizes an internal oscillator circuit along with an external crystal to generate accurate timekeeping signals. It incorporates a real-time clock and calendar functionality, allowing it to keep track of time, date, and day of the week. The device can be powered by a main supply voltage or a backup battery, ensuring uninterrupted timekeeping even during power outages.
Detailed Application Field Plans
The DS14285N is commonly used in various electronic devices that require accurate timekeeping, such as:
- Personal computers and laptops
- Smartphones and tablets
- Digital cameras and camcorders
- Home appliances (microwaves, ovens, etc.)
- Automotive systems (dashboard clocks, navigation systems, etc.)
Detailed and Complete Alternative Models
- DS3231 - Real-Time Clock Module with Temperature Compensation
- PCF8563 - Real-Time Clock and Calendar with I2C Interface
- MCP7940N - Low-Power Real-Time Clock/Calendar with Battery Backup
These alternative models offer similar functionality and can be considered as alternatives to the DS14285N based on specific requirements and design considerations.
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Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του DS14285N σε τεχνικές λύσεις
Sure! Here are 10 common questions and answers related to the application of DS14285N in technical solutions:
Question: What is DS14285N?
- Answer: DS14285N is a real-time clock (RTC) chip manufactured by Maxim Integrated. It provides accurate timekeeping and calendar functions for various technical applications.Question: What are the key features of DS14285N?
- Answer: Some key features of DS14285N include battery backup, alarm functionality, programmable square wave output, and non-volatile memory for storing time and date information.Question: How is DS14285N powered?
- Answer: DS14285N can be powered using a 3V lithium coin cell battery or an external power supply.Question: Can DS14285N be used in battery-powered devices?
- Answer: Yes, DS14285N is commonly used in battery-powered devices due to its low power consumption and ability to operate on a coin cell battery.Question: What is the accuracy of DS14285N's timekeeping?
- Answer: DS14285N has a typical timekeeping accuracy of ±2 minutes per month when operated at room temperature.Question: Can DS14285N be interfaced with microcontrollers or other digital systems?
- Answer: Yes, DS14285N supports I2C communication protocol, making it compatible with various microcontrollers and digital systems.Question: Does DS14285N have an integrated temperature sensor?
- Answer: No, DS14285N does not have an integrated temperature sensor. However, it can be used in conjunction with an external temperature sensor for temperature-compensated timekeeping.Question: Can DS14285N generate interrupts based on specific time or date conditions?
- Answer: Yes, DS14285N has alarm functionality that allows it to generate interrupts based on user-defined time or date conditions.Question: Is DS14285N suitable for applications requiring precise synchronization across multiple devices?
- Answer: While DS14285N provides accurate timekeeping, it may not be the best choice for applications requiring precise synchronization across multiple devices due to its inherent limitations in accuracy.Question: Are there any development tools or libraries available for working with DS14285N?
- Answer: Maxim Integrated provides software libraries and development tools, such as application notes and reference designs, to assist developers in integrating DS14285N into their technical solutions.
Please note that these answers are general and may vary depending on specific use cases and requirements.