DS17485-5

Product Overview

Category

DS17485-5 belongs to the category of integrated circuits (ICs).

Use

The DS17485-5 IC is primarily used for real-time clock (RTC) applications.

Characteristics

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

Package

The DS17485-5 is available in a compact surface-mount package.

Essence

The essence of DS17485-5 lies in its ability to accurately keep track of time and date, making it suitable for various time-sensitive applications.

Packaging/Quantity

The DS17485-5 is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Timekeeping Accuracy: ±2 minutes per month
• Battery Backup Voltage: 2.0V to 5.5V
• Clock Frequency: 32.768kHz

Detailed Pin Configuration

The DS17485-5 features the following pin configuration:

1. VCC - Power supply input
2. GND - Ground connection
3. SDA - Serial data line for communication
4. SCL - Serial clock line for 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
• Non-volatile storage for time and date information
• Automatic leap year compensation
• Programmable square wave output
• Battery backup support

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited storage capacity for additional data
• External crystal oscillator required for clock accuracy

Working Principles

The DS17485-5 utilizes an internal oscillator and a real-time counter to keep track of time. It relies on an external crystal oscillator for accurate timekeeping. The IC also features non-volatile memory to store time and date information, ensuring data integrity during power loss.

Detailed Application Field Plans

The DS17485-5 is commonly used in various applications, including:

1. Consumer electronics: Used in digital watches, clocks, and timers.
2. Industrial automation: Integrated into control systems for precise time synchronization.
3. Automotive: Incorporated into vehicle dashboard clocks and event logging systems.
4. Medical devices: Utilized in medical equipment that requires accurate timekeeping.
5. Communication systems: Integrated into network infrastructure for time-sensitive operations.

Detailed and Complete Alternative Models

1. DS3231 - Real-time clock module with higher accuracy and additional features.
2. PCF8563 - Low-power real-time clock IC with I2C interface.
3. MCP7940N - Real-time clock/calendar IC with battery backup support.
4. DS1307 - Basic real-time clock IC with low power consumption.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

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