DS1302 Real Time Clock RTC Module is 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: RST I/O reset the data line 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 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. Specifications: Material: Plastic, Metal Operating Voltage Range: 2.0V – 5.0V Operating Currency: Less than 300nA at 2.0V Working Temperature Range: 0C-85C Mount Hole Dia: 3.1mm / 0.12″ Crystal Oscillator Frequency: 32.768K Length (mm): 44 Width (mm): 23 Height (mm): 1.6 Weight (gm): 6 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 Useful Links: Arduino DS1302 Real Time Clock Package Includes: 1 x DS1302 RTC Real Time Clock Module (Battery not included) Note: Battery is not included along with module
