Description

“

RTC 1302 Real Time Clock Module

• This RTC DS1302 Real Time Clock Module allows you to use your Arduino or MCU to do time / date related functions such as: Starting a task at a specific date / time or recording the date / time of an event or simply displaying the time / date to a user.
• DS1302 is DALLAS company launched a trickle charge clock chip, containing a real-time clock/calendar and 31 bytes of static RAM, communicating through serial interface simple and single-chip microcomputer.
• The real-time clock/calendar circuit provides seconds, hours, days, weeks, months, years of information, a number of days in the month and leap year can automatically adjust. The clock operation instructions through the AM/PM decided to use 24 or 12-hour format.

Between DS1302 and single-chip microcomputer can simply use synchronous serial communication method, only three lines:

1. RST
2.  I/O reset the data line
3.  SCLK serial clock.

• Clock /RAM read/write data to a byte character set or as many as 31-byte communication. DS1302 work power consumption is very low to keep the data and clock information when power is less than 1mW
• Wiring method (to provide procedures, for example, can pick up any IO port, in the Procedure to modify the port definitions :

1. VCC: 5V/3.3V
2. GND: GND
3. CLK: P02
4. DAT: P01
5. RST: P00

Note:

• VCC and GND do not reverse, so as not to burn the chip
• 51 SCM P0 port to receive a pull-up resistor, if your computer is not connected pull-up resistor, the data can be the string to the other port.

Specifications and Features:

• The real-time clock counts minutes, seconds, date, hours, month day of the week, year and leap-year compensation up to 2100.
• 318 temporary data storage RAM
• Working current of 2.0V, less than 300nA
• Read / Write clock or RAM data with two kinds of mode of single-byte transfer mode and multi-byte character set
• 8 pin DIP package or optional 8 pin SOIC package based on the surface assembly
• Simple 3 wire interface
• Compatible with TTL Vcc=5V
• Double power supply pipe for main power and backup power supply.

 

 

Useful Links:

Arduino DS1302 Real Time Clock 
Using the Real-Time Clock module on Raspberry Pi

Package Included:

• 1 X RTC 1302 Real Time Clock Module

“