DS1707ESA/T&R

Product Overview

• Category: Integrated Circuit
• Use: Real-Time Clock (RTC)
• Characteristics: Low-power, serial I/O, programmable square-wave output, and alarm function
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: The DS1707ESA/T&R is a real-time clock designed to keep track of time in various electronic devices.
• Packaging/Quantity: Tape & Reel

Specifications

• Operating Voltage: 2.0V to 5.5V
• Clock Accuracy: ±2 minutes per month at 25°C
• I2C Serial Interface
• Temperature Range: -40°C to +85°C
• Battery Backup Input for Continuous Timekeeping

Detailed Pin Configuration

1. VCC
2. GND
3. SDA (Serial Data)
4. SCL (Serial Clock)
5. SQW/INT (Square Wave/Interrupt Output)
6. RST (Reset)
7. NC (No Connection)
8. VBAT (Battery Input)

Functional Features

• Real-time clock counts seconds, minutes, hours, day, date, month, and year with leap year compensation valid up to 2100
• Programmable square-wave output and alarm function
• Automatic power-fail detect and switch circuitry
• Battery-reversal input protection

Advantages and Disadvantages

Advantages

• Low power consumption
• Wide operating voltage range
• Battery backup for continuous timekeeping

Disadvantages

• Limited clock accuracy compared to some high-precision RTCs
• Requires external crystal for timekeeping

Working Principles

The DS1707ESA/T&R operates by counting the oscillations of an external crystal oscillator to maintain accurate timekeeping. It utilizes a low-power serial interface to communicate with the host microcontroller and provides features such as programmable alarms and square-wave outputs.

Detailed Application Field Plans

The DS1707ESA/T&R is commonly used in applications requiring accurate timekeeping, such as: - Embedded systems - Data loggers - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

• DS1307
• DS3231
• PCF8563
• MCP79410

In conclusion, the DS1707ESA/T&R is a versatile real-time clock suitable for a wide range of applications due to its low power consumption, programmable features, and battery backup capability.

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