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In the field of real-time clock (RTC) chips, the DS12C887 RTC chip produced by Dallas has become a reliable time manager for many devices due to its ability to continue to operate on backup power after power failure. It not only has the precise counting function of seconds, minutes, hours, days, weeks, months, and years, but also supports programmable interrupt output, and can easily handle both binary and BCD code time formats.
In addition, the DS12C887 clock chip has 128BRAM, which can be used to store information; programmable square wave output, combined with a simple microcontroller interface, enables it to be widely used in computer systems, home appliances, industrial control and other fields.
However, as smart devices continue to develop in the direction of miniaturization, low power consumption and high precision, the PCB space occupied by its DIP24 package, the pressure on battery life caused by the typical power consumption of 10μA, and the timing error of ±1 minute/month have gradually become bottlenecks in scenarios such as the Internet of Things and wearable devices. Today, YSN8130, with its LGA 3.2×2.5×1.0mm small package (95% volume reduction), dual power supply low power design (90% power consumption reduction), and 10 times accuracy improvement, has made RTC move from "usable" to "easy to use" from the four dimensions of "space revolution, endurance leap, accuracy leap, and functional evolution", providing a better solution for the timing needs of portable devices.
一、Miniaturization: Space Revolution
Traditional pain points: DS12C887 uses a large DIP24 package (24 pins), a simple parallel interface, a slow transmission rate, occupies a lot of PCB space, and complex wiring.
YSN8130 breakthrough: Using advanced I²C serial interface, only two signal lines are required, and the number of pins is sharply reduced by 90%. LGA 3.2×2.5×1.0mm ultra-micro package, the volume is reduced by more than 95% compared with DS12C887. Perfectly meets the needs of portable devices that are extremely sensitive to space, such as smart watches and smart homes.
二、Ultra-low power consumption: battery life leaps
Traditional pain points: The typical power consumption of DS12C887 is about 10μA, which puts pressure on the battery life of battery-powered devices.
YSN8130 breakthrough: Typical power consumption is as low as 0.9μA (when FOUT is turned off), and power consumption is reduced by 90%. It adopts a dual power supply design (main power supply VDD: 1.6-5.5V, backup power supply VBAT: 1.2-5.5V), seamlessly supporting external battery or supercapacitor backup. It brings several times longer battery life to smart door locks, sports wear, smart homes and other devices, significantly improving user experience.
三、High-precision timing: stable and reliable
Traditional pain points: The monthly error of DS12C887 without compensation can reach ±1 minute, and the operating temperature only supports 0~70℃, which is difficult to meet high-precision scenarios such as industry.
YSN8130 breakthrough: Accuracy reaches ±5ppm (about ±13 seconds/month), and the accuracy is improved by 10 times. The operating temperature supports -40~85℃, which meets the needs of various scenarios.
四、Fourth, comprehensive functions: intelligent upgrade
Traditional limitations: DS12C887 mainly provides basic RTC functions and RAM. Manual calibration is required in case of century years
YSN8130 advantages: Equipped with basic RTC, integrated with rich functions:
· Integrated digital calibration, direct support for cross-century dates;
· Alarm interrupt: Accurately trigger timing tasks (such as smart home scene linkage);
· Timer: Provide flexible timing function;
· Intelligent battery management: Real-time monitoring of backup power status to effectively prevent data loss;
· Support event triggering.
YSN8130 is widely used in industrial control, smart wearables, smart homes, medical equipment and other fields with its comprehensive advantages of miniaturization, ultra-low power consumption, ultra-high precision and rich functions.
If necessary, please contact Yangxing Technology to obtain free samples and provide relevant technical support~
