Each Program Requires Frequency Parameters To Run, So We Will Need To Use A Clock Chip To Generate The Clock Frequency. Clock Chips Are One Of The Most Widely Used Consumer Electronic Products In Daily Life. It Provides People With Accurate Real-Time Time, Can Time The Year, Month, Day, Day Of The Week, Hour, Minute, Second, And Has Many Functions Such As Leap Year Compensation; Or Provides An Accurate Time Base For Electronic Systems. Currently, Real-Time Clocks Most Chips Use A High-Precision Crystal Oscillator As The Clock Source.

XBLW DS1302 Main Features

• The Real-Time Clock Calculates The Year, Month, Day, Hour, Minute, Second, Day Of The Week Until 2100, And Has A Leap Year Adjustment Function

• 31×8-Bit General Purpose Scratchpad RAM

• Serial Input And Output Minimize Pin Count

• 2.5V To 5.5V Wide Voltage Range Operation

• When The Operating Current At 2.5V Is Less Than 300nA, There Is A Single-Byte Or Multi-Byte (Burst Mode) Data Transfer Method When Reading And Writing Clock Or RAM Data.

• Compatible With TTL (VCC=5V)

  
  

XBLW DS1307 Main Features

• Real-Time Clock Calculates Year, Month, Day, Hour, Minute, Second, Day Of The Week Until The Year 2100

• Has 56 Bytes Of Non-Volatile RAM For Data Storage

•  Two-Wire Serial 12C Interface Programmable Square Wave Output Signal

•  Automatic Power Failure Detection And Switching Circuit

•  Optional Industrial Temperature Range -40℃-80℃

•  Certified Compatible

Package And Pin Definition

 DS1302&DS1307 Are Available In DIP-8 And SOP-8 Packages

DS1302 Pin Definition: 

DS1307 Pin Definition:

Internal Block Diagram Of Two Real-Time Clock Chips

DS1302  

DS1307

Application Circuit Examples Of Two Real-Time Clock Chips

Application Areas

XBLW DS1302 Is A Real-Time Clock Chip That Is Commonly Used In Electronic Devices That Need To Record Time. The Following Are Application Examples Of DS1302:

1. Digital Clock , Using DS1302 As The Clock Chip, You Can Make A Digital Clock To Display The Current Time.        

2. Electronic Scale , Use DS1302 To Record The Time Of Weight Measurement For Statistics And Analysis Of Usage Habits.    

3. Thermometer , Use DS1302 To Record The Time Of Data Collection In Order To Understand The Temperature Changes.

       XBLW DS1307 Is A Real-Time Clock Chip With The Characteristics Of High Accuracy, Low Power Consumption Design, Battery Backup And Multiple Format Support. It Communicates With Other Devices Via An I2C Interface And Has 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 Is Widely Used In The Fields Of Computers, Communication Equipment, Industrial Control Systems And Embedded Systems.

      Overall, XBLW DS1302 And XBLW DS1307 Are Powerful And Highly Reliable Real-Time Clock Chips . Their High-Precision, Low-Power Design, And Multiple Special Features Make Them Widely Adopted In A Variety Of Applications. Whether It Is A Computer System, Communication Equipment, Industrial Control Or Embedded System, It Can Provide Reliable Time Management And Recording Functions. As Technology Continues To Develop, The Company Will Further Improve And Improve To Meet The Needs Of More And More Fields And Bring More Convenience And Efficiency To Our Lives.