DS1302SN-16

Product Overview

Category

The DS1302SN-16 belongs to the category of real-time clock (RTC) modules.

Use

This module is primarily used for timekeeping and time-related functions in electronic devices.

Characteristics

• Low power consumption
• Simple interface
• Accurate timekeeping
• Battery backup support
• Wide operating voltage range

Package

The DS1302SN-16 comes in a compact 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of the DS1302SN-16 lies in its ability to provide accurate real-time clock functionality with minimal power consumption.

Packaging/Quantity

The DS1302SN-16 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Operating Voltage: 2.0V to 5.5V
• Timekeeping Current: Less than 1.5μA at 3.0V
• Clock Frequency: 0Hz to 5MHz
• Data Retention: Over 10 years
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The DS1302SN-16 has the following pin configuration:

1. VCC - Power supply voltage
2. GND - Ground
3. CLK - Clock input/output
4. RST - Reset input
5. DAT - Data input/output
6. VBAT - Battery backup voltage
7. NC - No connection
8. NC - No connection

Functional Features

• Real-time clock with seconds, minutes, hours, day, month, and year information
• Automatic leap year compensation
• 31-byte RAM for general-purpose data storage
• Trickle charger for battery backup
• 24-hour or 12-hour format selection

Advantages and Disadvantages

Advantages

• Low power consumption ensures extended battery life
• Simple interface facilitates easy integration into various electronic devices
• Accurate timekeeping for reliable functionality
• Battery backup support ensures uninterrupted operation during power outages

Disadvantages

• Limited RAM capacity for general-purpose data storage
• Clock frequency range may not be suitable for certain applications requiring higher frequencies

Working Principles

The DS1302SN-16 utilizes a real-time clock chip that keeps track of time using an internal oscillator. It communicates with the microcontroller or host device through a simple 3-wire interface. The module can be powered by either the main power supply or a backup battery, ensuring continuous timekeeping even in the absence of external power.

Detailed Application Field Plans

The DS1302SN-16 finds applications in various electronic devices that require accurate timekeeping, such as:

1. Digital clocks and watches
2. Electronic appliances with scheduling functions
3. Data loggers and data acquisition systems
4. Industrial automation systems
5. Automotive electronics
6. Security systems

Detailed and Complete Alternative Models

1. DS3231 - A highly accurate RTC module with integrated temperature compensation.
2. PCF8563 - An RTC module with additional alarm and timer functionalities.
3. MCP7940N - An RTC module with I2C interface and battery-backed SRAM.

These alternative models offer similar timekeeping capabilities but may have additional features or different package options.

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