Real Time Clock Module (RTC) – DS1302
|Dimensions||42 × 24 × 12 mm|
|Input Voltage||3.3V/5V DC|
The Real Time Clock Module DS1302 model is extremely popular among users. Because of the high accuracy of this real time clock module, it can be used for developing extreme application with arduino or resbery pi. When time accuracy is important for an application, RTC DS1302 module is the best choice.
RTC DS1302 is a tickle-charge timekeeping chip which contains a real time clock/calendar and 31 bytes of static RAM. DS1302 uses serial communication to interact with micro-controllers. Also, this module real time clock module automatically adjust the date for the month with fewer days. Clock operates in 24hr or 12hr format with an AM/PM indicator.
DS1302 chip is also commonly used as DS1302 RTC module which comes with a 32 kHz crystal and on-board battery backup all in a small SIP module that is compatible with a breadboard. Real time clock modules like DS1302 are used by makers with Arduino, Raspberry Pi and other Micro-controllers.
How to Use Real Time Clock module RTC DS1302 Chip
A typical operating circuit for RTC DS1302 is given below. DS1302 have two power input, one is from cell and other is from controller. A crystal oscillator of 32.768 kHz is used to generate required frequency. For interfacing Data line, Reset Pin and Serial-clock pins of DS1302 are connected with the micro-controller.
- VCC → +5 V/3.3V
- GND → GND
- CLK → P02
- DAT → P01
- RST → P00