DS17485S-3

Product Overview

Category

DS17485S-3 belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for timekeeping and real-time clock (RTC) applications.

Characteristics

• High accuracy timekeeping
• Low power consumption
• Small form factor
• Wide operating temperature range

Package

DS17485S-3 is available in a surface mount package, typically a small outline integrated circuit (SOIC) package.

Essence

The essence of DS17485S-3 lies in its ability to accurately keep track of time and provide real-time clock functionality.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a standard quantity of 250 units per reel/tube.

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
• Clock Frequency: 32.768 kHz
• Battery Backup Voltage: 2.0V to 5.5V
• Interface: I2C

Detailed Pin Configuration

1. VCC - Power supply input
2. GND - Ground
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 timer functions
• Programmable square wave output
• Battery backup support
• Automatic leap year compensation
• Power-on reset and watchdog timer

Advantages and Disadvantages

Advantages

• High accuracy timekeeping
• Low power consumption
• Small form factor
• Wide operating temperature range
• Battery backup support for uninterrupted operation

Disadvantages

• Limited memory capacity for additional data storage
• Relatively higher cost compared to basic clock modules

Working Principles

DS17485S-3 utilizes an internal oscillator circuit along with an external crystal to generate a precise 32.768 kHz clock signal. This clock signal is used to keep track of time and perform various time-related functions. The device can be powered by a battery backup to ensure continuous operation even during power outages.

Detailed Application Field Plans

DS17485S-3 finds applications in various fields, including but not limited to: - Consumer electronics - Industrial automation - Medical devices - Automotive systems - Communication equipment

Detailed and Complete Alternative Models

1. DS3231 - Real-time clock module with temperature compensation
2. PCF8563 - I2C-bus real-time clock/calendar
3. MCP7940N - Low-power real-time clock/calendar with SRAM

These alternative models offer similar functionality and can be considered as alternatives to DS17485S-3 based on specific requirements.

In conclusion, DS17485S-3 is a highly accurate real-time clock IC suitable for a wide range of applications. Its small form factor, low power consumption, and battery backup support make it an ideal choice for timekeeping needs. However, its limited memory capacity and relatively higher cost should be taken into consideration when selecting the appropriate solution.