DFR0469

DFR0469 Datasheet

Gravity I2C SD2405 RTC Module SKU DFR0469

Part	Datasheet
DFR0469	DFR0469 (pdf)

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Gravity I2C SD2405 RTC Module SKU DFR0469 Introduction We're glad to introduce a new member in Gravity family Gravity I2C SD2405 RTC module. This is an extremely accurate I2C real-time clock RTC with crystal compensation, inner chargeable battery. The SD2405AL is available in industrial temperature ranges. The SD2405AL is dual power supply system. When the primary power supply goes down to an assigned value or resumes from low power, the system can switch between the primary power supply and battery automatically. Even there is no external power, it can still work for 5~8 years, 1uA ultra-low power consumption inner battery, Ta=25°C . The SD2405AL can generates various periodic interrupt clock pulses lasting for long period one year , and three alarm interrupts can be made by year, month, date, days of the week, hours, and minutes, seconds. It also provides a selectable 32.768KHz~1Hz clock output for an external MCU. The product incorporates a time trimming circuit that adjusts the clock with higher precision by adjusting any errors in crystal oscillator frequencies based on signals from the CPU. A 12-bytes general SRAM is implemented in the SD2405AL. Gravity SD2405 RTC can work as data logger, timer alarm clock and other time application. It is an ideal choice for timing project. Specification • Operation voltage range:3.3V~5.5V. • Low-power:typical 1uA inner battery, Ta=25°C • Timing Range To 2099 with leap year compensation • Accuracy ±5ppm from -40°C to +85°C. • Fast 400kHz I2C Interface 4.5~5.5V . • Real-Time Clock Counts Seconds, Minutes,Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to • Alarms. • Programmable Square-Wave Output:32768hz,4096hz...1hz..1/16hz. • Countdown timer interrupt. • High precision time trimming circuit. • 12-hour/24-hour time display selectable • Dimension * 22.00 mm /1.4 * inches • Weight 6g Board Overview Gravity I2C SD2405 RTC Module Num Label 1 Gravity Interface 2 XH2.54 Pins SDA IIC Data SCL IIC Clock GND VCC 3.3~5V SDA IIC Data SCL IIC Clock GND VCC 3.3~5V INT Interrupt Tutorial In this tutorial, you can set and read time. Requirements • Hardware DFRduino UNO or similar x 1 Gravity I2C SD2405 RTC Module M-M/F-M/F-F Jumper wires • Software Arduino IDE, Click to Download Arduino IDE from Connection Diagram Gravity I2C SD2405 RTC Module Arduino Connection Diagram Sample Code Please download Arduino RTC library. How to install Libraries in Arduino IDE Note //rtc.initRtc 2017,6,19,1,12,7,0 //Set Time 2017/June/19th/Monday/12:07:0 am. Please comment it after you have set time successfully!!!!!!! #include "GravityRtc.h" #include "Wire.h" GravityRtc rtc; //RTC Initialization void setup Serial.begin 9600 rtc.setup ; //rtc.initRtc 2017,6,19,1,12,7,0 //Set Time 2017/June/19th/Monday/12:07 :0 am //Please comment it after you have set time successfully!!!!!!! void loop rtc.update Serial.print " Year = " ;//year Serial.print rtc.year Serial.print " Month = " ;//month Serial.print rtc.month Serial.print " Day = " ;//day Serial.print rtc.day Serial.print " Week = " ;//week Serial.print rtc.week Serial.print " Hour = " ;//hour Serial.print rtc.hour Serial.print " Minute = " ;//minute Serial.print rtc.minute Serial.print " Second = " ;//second Serial.println rtc.second delay 1000 ; Expected Results 7-7-17

PDF Datasheet Preview

Gravity I2C SD2405 RTC Module SKU DFR0469

Introduction

We're glad to introduce a new member in Gravity family Gravity I2C SD2405 RTC module. This is an extremely accurate I2C real-time clock RTC with crystal compensation, inner chargeable battery. The SD2405AL is available in industrial temperature ranges. The SD2405AL is dual power supply system. When the primary power supply goes down to an assigned value or resumes from low power, the system can switch between the primary power supply and battery automatically. Even there is no external power, it can still work for 5~8 years, 1uA ultra-low power consumption inner battery, Ta=25°C . The SD2405AL can generates various periodic interrupt clock pulses lasting for long period one year , and three alarm interrupts can be made by year, month, date, days of the week, hours, and minutes, seconds. It also provides a selectable 32.768KHz~1Hz clock output for an external MCU. The product incorporates a time trimming circuit that adjusts the clock with higher precision by adjusting any errors in crystal oscillator frequencies based on signals from the CPU. A 12-bytes general SRAM is implemented in the SD2405AL. Gravity SD2405 RTC can work as data logger, timer alarm clock and other time application. It is an ideal choice for timing project.

Specification
• Operation voltage range:3.3V~5.5V.
• Low-power:typical 1uA inner battery, Ta=25°C
• Timing Range To 2099 with leap year compensation
• Accuracy ±5ppm from -40°C to +85°C.
• Fast 400kHz I2C Interface 4.5~5.5V .
• Real-Time Clock Counts Seconds, Minutes,Hours, Day, Date, Month, and Year with Leap Year

Compensation Valid Up to
• Alarms.
• Programmable Square-Wave Output:32768hz,4096hz...1hz..1/16hz.
• Countdown timer interrupt.
• High precision time trimming circuit.
• 12-hour/24-hour time display selectable
• Dimension * 22.00 mm /1.4 * inches
• Weight 6g

Board Overview

Gravity I2C SD2405 RTC Module

Num Label 1 Gravity Interface
2 XH2.54 Pins

SDA IIC Data SCL IIC Clock GND VCC 3.3~5V

SDA IIC Data SCL IIC Clock GND VCC 3.3~5V INT Interrupt

Tutorial

In this tutorial, you can set and read time.

Requirements
• Hardware DFRduino UNO or similar x 1 Gravity I2C SD2405 RTC Module M-M/F-M/F-F Jumper wires
• Software

Arduino IDE, Click to Download Arduino IDE from

Connection Diagram

Gravity I2C SD2405 RTC Module Arduino Connection Diagram

Sample Code

Please download Arduino RTC library. How to install Libraries in Arduino IDE

Note //rtc.initRtc 2017,6,19,1,12,7,0 //Set Time 2017/June/19th/Monday/12:07:0 am. Please comment it after you have set time successfully!!!!!!!
#include "GravityRtc.h" #include "Wire.h"

GravityRtc rtc;
//RTC Initialization
void setup Serial.begin 9600 rtc.setup ;
//rtc.initRtc 2017,6,19,1,12,7,0 //Set Time 2017/June/19th/Monday/12:07 :0 am
//Please comment it after you have set time successfully!!!!!!!
void loop rtc.update Serial.print " Year = " ;//year Serial.print rtc.year Serial.print " Month = " ;//month Serial.print rtc.month Serial.print " Day = " ;//day Serial.print rtc.day Serial.print " Week = " ;//week

Serial.print rtc.week Serial.print " Hour = " ;//hour Serial.print rtc.hour Serial.print " Minute = " ;//minute Serial.print rtc.minute Serial.print " Second = " ;//second Serial.println rtc.second delay 1000 ;

Expected Results
7-7-17

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Datasheet ID: DFR0469 508784