DS1302 Real Time Clock Module

• DS1302 has introduced trickle charge the clock chip, with a real-time clock/calendar and 31 bytes of static RAM, via a simple serial interface
• To communicate with the microcontroller. Real-time clock/calendar circuit provides seconds, minutes, hours, days, weeks, months, years
• Information, the number of days per month and leap year automatically adjust the number of days. Clock can be done by the AM/PM or 12
• Decided on 24 hour format. Between the DS1302 and the microcontroller can simply use the synchronous serial communication mode, used
• Only three port lines: (1) RST Reset (2) I/O data lines (3) SCLK serial clock. Clock/RAM read/write data to one byte or up to 31 bytes of character
• Set of road communications. DS1302 low-power work to display the data and clock information when the power is less than 1mW
• Real time clock with the year 2100 calculating seconds, minutes, hours, days, weeks, months, years, the ability, as well as the ability to leap
• Year adjustment
• 1.31 8 temporary data storage RAM
• 2.Serial I/O port pin allows least number of ways
• 3.Wide range of operating voltage 2.0 to 5.5V
• 4. Current 2.0V, less than 300nA
• 5. Read/write clock or RAM data transfer when there are two single-byte transmit and multi-byte character sets transfer mode
• 6.8-pin DIP package or optional 8-pin SOIC package mounting according to the surface
• 7. Simple 3-wire interface
• 8.Vcc = 5V and TTL compatible
• 9. Optional industrial temperature range -40 to +85
• 10.Dual power tube for main and backup power supply