DS17285S-3/T&R

Product Overview

Category

The DS17285S-3/T&R belongs to the category of real-time clock (RTC) modules.

Use

It is used to keep track of time and date in various electronic devices, including computers, embedded systems, and consumer electronics.

Characteristics

• Low power consumption
• Integrated crystal
• I2C interface
• Battery backup

Package

The DS17285S-3/T&R comes in a small surface-mount package, making it suitable for compact electronic designs.

Essence

The essence of the DS17285S-3/T&R lies in its ability to provide accurate timekeeping functionality with minimal power consumption.

Packaging/Quantity

The DS17285S-3/T&R is typically packaged in reels and is available in varying quantities depending on the manufacturer's specifications.

Specifications

• Operating Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2 minutes per month at 25°C
• Operating Temperature Range: -40°C to +85°C
• I2C Interface: Up to 400kHz
• Battery Backup Input for Continuous Timekeeping

Detailed Pin Configuration

The DS17285S-3/T&R features a standard 8-pin configuration: 1. VCC 2. GND 3. SDA (I2C Data) 4. SCL (I2C Clock) 5. NC (Not Connected) 6. RST (Reset) 7. SQW/INT (Square Wave/Interrupt Output) 8. VBAT (Battery Backup Input)

Functional Features

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

Advantages and Disadvantages

Advantages

• Low power consumption extends battery life
• Integrated crystal simplifies design
• Wide operating voltage range enhances compatibility

Disadvantages

• Limited temperature range compared to industrial-grade RTCs
• May require additional circuitry for extended backup power

Working Principles

The DS17285S-3/T&R utilizes an integrated crystal oscillator to maintain accurate timekeeping. When powered, the device keeps track of time and date, and can be accessed and programmed through the I2C interface. In the event of a main power failure, the battery backup ensures continuous timekeeping.

Detailed Application Field Plans

The DS17285S-3/T&R is well-suited for applications requiring reliable timekeeping, such as: - Embedded systems - Portable electronics - IoT devices - Wearable technology

Detailed and Complete Alternative Models

• DS3231: Offers higher timekeeping accuracy and a wider temperature range
• MCP7940N: Provides additional EEPROM for data storage and more flexible alarm functions
• PCF85263A: Features a unique trickle charger for backup power and enhanced precision

In conclusion, the DS17285S-3/T&R is a versatile real-time clock module with low power consumption, integrated crystal, and essential timekeeping features. Its compact package and functional characteristics make it an ideal choice for a wide range of electronic applications.

Word Count: 443