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DS1302 Real Time Clock Module (No Battery)
The DS1302 Real Time Clock Module (No Battery) is a value-for-money rtc module designed for everyday users. It features Item Type: RTC Module and Operating Voltage (VDC): 2 to 5.
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About This Product
The DS1302 Real Time Clock Module (No Battery) is a value-for-money rtc module designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Item Type: RTC Module
- Operating Voltage (VDC): 2 to 5 — works with standard household power
- Model No. / Name: DS1302
- Material: Plastic, Metal — built to last with a quality finish
- Operating Temperature (°C): 0C-85C
- Mounting Hole Diameter (mm): 3.1mm / 0.12″
- Output Frequency: 32.768K — smooth, flicker-free operation
- Length (mm): 44
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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 a 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 :
VCC:+5V/3.3V GND: GND CLK: P02 DAT: P01 RST: P00
Note:
1.VCC and GND do not reverse, so as not to burn the chip 2.51 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.
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 Includes:
1 x DS1302 RTC Real Time Clock Module (No Battery)
