RTC Easy

• Real time with second, minute, hour, day, month, year.
• DS1307 RTC chip with I2C interface.
• Support ATCBus Header.
• Power supply: 5V DC.
• Battery back up 3V/35mAh.
• Dimension: 33x34 mm.
• Support design Library for Altium, Eagle, Orcad.
• Support sample code for PIC.

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     1. Introduction of RTC Easy

     RTC Easy is a product in the ATCBus series that AT-COM provides users with Real-time Clock applications. The board is integrated with the DS1307 chip supporting I2C interface, 56 bytes of RAM write Unlimited, combined with variable square pulse output enabling the deployment of the clock, calendar, timer, and battery backup applications help real-time data storage even when there is no power supply to the board. Board supports the ATCBus Socket helps it easy to integrate with other ATCBus products to experience the great "Plug and Play" feature. Especially with compact size, handy data output,  RTC Easy will bring you the most modern and refined design inspiration.

     2.  Design Diagram of RTC Easy


     3. Features of RTC Easy


     The power supply for the board is 5VDC, which is supplied via VCC, GND pins on ATCBus and VCC, GND pins on header. LED power will light red when a 5VDC power supply is supplied.

     RTC DS1307z Chip has pins type SOIC-8 SMD compact size, which supports the I2C interface via the SCL, SDA pins, and the square wave pulse output INT, is pulled to the source with resistors R1, R2, and R3. 

     32,768 KHz quartz oscillates 1 Hz for DS1307 chip connected to X1, X2 pins of DS1307.

     Battery Lithium CR1220 3V/35mAh for DS1307 chip still work when 5VDC power is not supplied to the board.

     ATCBus Socket with the I2C interface pins according to ATCBus standard I2C helps users connect to the Easy Board for a convenient "Plug and Play" experience.

     RTC Easy can easily connect to PIC Easy R1 via ATCBus Socket

     In addition, RTC Easy integrates headers with source pins, I2C and outputs to make it easy for users to connect to any other application board.

     4. Dimension of RTC Easy

      5. Video demo

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