DS14285SN+T&R

Product Overview

Category

The DS14285SN+T&R belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for real-time clock (RTC) applications.

Characteristics

• The DS14285SN+T&R is a highly accurate and reliable RTC IC.
• It offers low power consumption, making it suitable for battery-powered devices.
• The IC has a wide operating temperature range, allowing it to function in various environments.
• It provides precise timekeeping and calendar functions.

Package

The DS14285SN+T&R is available in a surface-mount package.

Essence

The essence of this product lies in its ability to accurately keep track of time and date, providing essential functionality for numerous electronic devices.

Packaging/Quantity

The DS14285SN+T&R is typically packaged in reels and is available in large quantities to meet the demands of manufacturers.

Specifications

• Supply Voltage: 2.97V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Timekeeping Accuracy: ±2 minutes per month at 25°C
• Battery Backup Voltage: 2.0V to 5.5V
• Interface: I2C

Detailed Pin Configuration

The DS14285SN+T&R features the following pin configuration:

1. VCC - Power supply input
2. GND - Ground connection
3. SDA - Serial data line for I2C communication
4. SCL - Serial clock line for I2C communication
5. SQW/OUT - Square wave output or interrupt output
6. RST - Reset input
7. X1 - Crystal oscillator input
8. X2 - Crystal oscillator output
9. VBAT - Battery backup input

Functional Features

• Real-time clock with calendar functionality
• Alarm and interrupt capabilities
• Battery backup for timekeeping during power loss
• Programmable square wave output
• Power management features to minimize power consumption

Advantages and Disadvantages

Advantages

• High accuracy in timekeeping
• Low power consumption
• Wide operating temperature range
• Versatile interface for easy integration
• Reliable performance

Disadvantages

• Limited timekeeping accuracy at extreme temperatures
• Requires an external crystal oscillator for operation

Working Principles

The DS14285SN+T&R operates by utilizing an internal oscillator and a real-time counter. The internal oscillator generates clock signals, which are used to increment the counter. This counter keeps track of time and date information accurately. In case of a power loss, the IC switches to battery backup mode, ensuring uninterrupted timekeeping.

Detailed Application Field Plans

The DS14285SN+T&R finds applications in various electronic devices that require precise timekeeping and calendar functionality. Some common application fields include:

1. Consumer electronics: Used in digital watches, clocks, and timers.
2. Industrial automation: Integrated into programmable logic controllers (PLCs) for accurate time synchronization.
3. Automotive systems: Employed in car dashboard clocks and event logging systems.
4. Medical devices: Utilized in medical equipment that requires accurate time tracking.

Detailed and Complete Alternative Models

1. DS3231 - A highly accurate RTC IC with temperature compensation.
2. PCF8563 - An RTC IC with integrated alarm and timer functions.
3. MCP7940N - A low-power RTC IC with battery backup and I2C interface.

These alternative models offer similar functionalities to the DS14285SN+T&R and can be considered as alternatives based on specific requirements.

In conclusion, the DS14285SN+T&R is a reliable and accurate RTC IC that finds applications in various electronic devices. Its low power consumption, wide operating temperature range, and precise timekeeping capabilities make it a popular choice among manufacturers.