DS12885N+ Encyclopedia Entry

Product Overview

Category

The DS12885N+ belongs to the category of real-time clock (RTC) integrated circuits.

Use

It is used to keep track of time and date in electronic systems, providing accurate timekeeping functionality.

Characteristics

• Low power consumption
• Integrated oscillator circuit
• Non-volatile timekeeping
• Serial interface for communication

Package

The DS12885N+ is available in a 24-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of DS12885N+ lies in its ability to provide reliable and accurate timekeeping for electronic devices.

Packaging/Quantity

The DS12885N+ is typically packaged in tubes or reels and is available in various quantities based on customer requirements.

Specifications

• Operating Voltage: 2.0V to 5.5V
• Timekeeping Current: 300nA at 3.3V
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C (Inter-Integrated Circuit)

Detailed Pin Configuration

The DS12885N+ has 24 pins, including VCC, GND, serial interface pins, and timekeeping pins. A detailed pin configuration diagram can be found in the product datasheet.

Functional Features

• Real-time clock with calendar
• Alarm functions
• Battery backup for continuous timekeeping
• Programmable square wave output

Advantages

• Low power consumption extends battery life
• Non-volatile timekeeping ensures data retention during power loss
• Integrated oscillator simplifies design and reduces component count

Disadvantages

• Limited temperature range compared to some industrial-grade RTCs
• Requires an external crystal for timekeeping accuracy

Working Principles

The DS12885N+ utilizes an internal oscillator and a dedicated timekeeping register to maintain accurate time and date information. It also includes alarm and interrupt features to trigger specific actions based on time.

Detailed Application Field Plans

The DS12885N+ is commonly used in applications such as: - Embedded systems - Consumer electronics - Industrial automation - Medical devices

Detailed and Complete Alternative Models

Some alternative models to the DS12885N+ include: - DS3231: Offers higher accuracy and wider temperature range - MCP79410: Integrates EEPROM for additional data storage - PCF85263: Provides ultra-low power consumption for battery-operated devices

In conclusion, the DS12885N+ is a versatile real-time clock IC that offers reliable timekeeping and alarm functions for a wide range of electronic applications.

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