Features
- battery backup genuine celestial CR2032, the voltage of 3V, the current 260mAh, non-rechargeable batteries. The theoretical data retention time is greater than 10 years!
- DS1302 made large-chip 8-pin DIP chip below the IC socket for easy replacement and plug the chip
- Module operating voltage is compatible with 3.3V/5V, can be connected with 5V and 3.3V MCU
- VCC ? +5 V/3.3V,GND with ? GND with,The CLK ? P02,The DAT ? the P01,The RST ? P00
- 2x DS1302 real time clock module with battery CR2032
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| Product Description |
Product Description
? Real-time clock has the capacity calculation prior to 2100 seconds, minutes, days, weeks, months, years, the ability, as well as the ability to leap year adjustment? 31 8-bit temporary data storage RAMA ? Serial I / O port pin number at least? wide range of operating voltage 2.0 5.5V? Operating current of 2.0V, less than 300nA? read / write clock or RAM data when the single-byte transmit and transmit multi-byte character set mode for both transmission? 8-pin DIP package or optional 8-pin SOIC package assembly under the surface? simple 3-wire interface? TTL-compatible Vcc = 5V? Optional industrial temperature range of -40 to +85? dual-supply pipe for the main power and backup power supplyNote:1.VCC to GND Do not reversed, so as not to burn the chipPull-up resistor needs to be connected to the 2.51 MCU P0 port, If your MCU is not connected to the pull-up resistor, the data cable to the other ports
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