Every program's operation requires frequency parameters to run, hence the need for a clock chip, which generates the clock frequency. Clock chips are one of the most widely used consumer electronic products in daily life. They provide people with accurate real-time timekeeping, capable of timing years, months, days, weekdays, hours, minutes, and seconds, and have various functions such as leap year compensation. Alternatively, they provide precise time references for electronic systems. Currently, most real-time clock chips use high-precision crystal oscillators as the clock source.

01—XBLW DS1302 Main Features:

· Real-time clock function, capable of tracking year, month, day, hour, minute, second, and weekday, up to the year 2100, with leap year adjustment.

· 31×8-bit general-purpose static RAM.

· Serial input/output to minimize pin count.

· Wide voltage range operation, from 2.5V to 5.5V.

· At 2.5V operating voltage, less than 300nA current consumption during clock or RAM data read/write, supporting single-byte or multi-byte (pulse train mode) data transfer.

02—XBLW DS1307 Main Features:

· Real-time clock function, capable of tracking year, month, day, hour, minute, second, and weekday, up to the year 2100.

· 56 bytes of non-volatile RAM for data storage.

· Two-wire serial I2C interface for programmable square wave output signal.

· Automatic power-fail detection and switch circuitry.

· Optional industrial temperature range of -40℃ to 80℃.

· Certified compatible.

03—Package and Pin Definitions

Both DS1302 and DS1307 are available in DIP-8 and SOP-8 packages.

DS1302 Pin Definitions:

DS1307 Pin Definitions:

04—Internal Block Diagrams of the Two Real-Time Clock Chips

DS1302  

DS1307

05—Application Circuit Examples of the Two Real-Time Clock Chips

06—Application Fields

XBLW DS1302 is a real-time clock chip commonly used in electronic devices requiring timekeeping. Below are application examples for DS1302:

1. Digital Clock: Utilizing DS1302 as the clock chip, one can create a digital clock to display the current time.

2.       Electronic Scale: DS1302 can be used to record the time of weight measurements in an electronic scale, facilitating the tracking and analysis of usage habits.

3.    Thermometer: DS1302 can be used to record the time of data collection in a thermometer, enabling the understanding of temperature fluctuations.

XBLW DS1307 is a real-time clock chip characterized by high accuracy, low power consumption design, battery backup, and support for multiple formats. It communicates with other devices through the I2C interface and features a flexible supply voltage range. The main parameters of DS1307 include supply voltage, I2C interface, storage capacity, and temperature compensation. As a reliable real-time clock solution, DS1307 finds wide applications in fields such as computers, communication equipment, industrial control systems, and embedded systems.

Overall, both XBLW DS1302 and XBLW DS1307 are powerful and reliable real-time clock chips. Their high accuracy, low power consumption design, and various special features make them widely adopted in various applications. Whether in computer systems, communication equipment, industrial control, or embedded systems, they provide reliable time management and recording functions. With the continuous development of technology, the company will further improve and enhance to meet the increasing demands of various fields, bringing more convenience and efficiency to our lives.