DS17285-3

Product Overview

Category: Integrated Circuit (IC)

Use: The DS17285-3 is a versatile integrated circuit used for various applications in electronic devices. It provides accurate timekeeping and temperature monitoring capabilities.

Characteristics: - Timekeeping accuracy - Temperature monitoring - Low power consumption - Compact size - Easy integration into electronic devices

Package: The DS17285-3 is available in a small form factor package, making it suitable for space-constrained designs.

Essence: The essence of the DS17285-3 lies in its ability to accurately keep track of time and monitor temperature, enabling precise timing and temperature control in electronic systems.

Packaging/Quantity: The DS17285-3 is typically sold in reels or tubes, with quantities varying based on customer requirements.

Specifications

The DS17285-3 offers the following specifications:

• Timekeeping Accuracy: ±2 seconds per day
• Temperature Monitoring Range: -40°C to +85°C
• Supply Voltage: 2.7V to 5.5V
• Operating Current: 500µA (typical)
• Standby Current: 100nA (typical)
• Package Dimensions: 8-pin SOIC

Detailed Pin Configuration

The DS17285-3 features an 8-pin Small Outline Integrated Circuit (SOIC) package. The pin configuration is as follows:

1. VCC - Power supply input
2. GND - Ground reference
3. SDA - Serial Data Line
4. SCL - Serial Clock Line
5. INT - Interrupt output
6. RST - Reset input
7. NC - No Connection
8. SQW/OUT - Square Wave Output

Functional Features

The DS17285-3 offers the following functional features:

1. Real-Time Clock (RTC): Provides accurate timekeeping with programmable alarms and calendar functions.
2. Temperature Sensor: Monitors ambient temperature with high precision.
3. Non-Volatile Memory: Stores configuration settings and time data even when power is disconnected.
4. I2C Interface: Allows easy communication with microcontrollers and other devices.
5. Alarm Output: Generates interrupt signals or triggers external events based on user-defined conditions.

Advantages and Disadvantages

Advantages: - Accurate timekeeping and temperature monitoring - Low power consumption for extended battery life - Compact size enables integration into small electronic devices - Easy-to-use I2C interface simplifies system integration

Disadvantages: - Limited temperature range (-40°C to +85°C) - Requires an external crystal oscillator for precise timekeeping

Working Principles

The DS17285-3 utilizes a combination of an internal oscillator, temperature sensor, and non-volatile memory to provide its functionality. The internal oscillator generates clock signals for timekeeping, while the temperature sensor ensures accurate temperature monitoring. The non-volatile memory stores configuration settings and time data, allowing the device to retain information even when power is disconnected.

Detailed Application Field Plans

The DS17285-3 finds applications in various fields, including:

1. Consumer Electronics: Used in digital watches, alarm clocks, and home appliances that require accurate timekeeping and temperature monitoring.
2. Industrial Automation: Integrated into control systems for precise timing and temperature control in manufacturing processes.
3. Automotive: Employed in vehicle dashboard displays and onboard computers for accurate timekeeping and temperature monitoring.
4. Medical Devices: Utilized in medical equipment that requires precise timing and temperature monitoring, such as incubators and blood analyzers.

Detailed and Complete Alternative Models

1. DS3231 - A highly accurate real-time clock module with integrated temperature compensation.
2. MCP7940N - An I2C real-time clock/calendar with battery backup and digital trimming for enhanced accuracy.
3. PCF8563 - A low-power real-time clock/calendar with alarm functions and I2C interface.

These alternative models offer similar functionality to the DS17285-3 and can be considered as alternatives based on specific application requirements.

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