Yangxing Technology (YXC): RTC Family Unveils Power, Ushering in a New Era of Precise Timing

　　A Real-time Clock (RTC) is a critical integrated circuit (IC) that provides electronic devices with continuous and accurate time and date information. Even when the main power is off, an RTC can maintain stored time data using a small backup battery.
　　
　　Core functions of an RTC include precise timekeeping and calendar management, time retention during power loss, timestamping, and alarm/timer capabilities. These features make RTCs widely used in various electronic devices requiring accurate time recording and synchronization, such as smart water/electricity meters, computers, smart home systems, and industrial control equipment.
　　
　　I. YXC RTC Product Portfolio
　　
　　Yangxing Technology (YXC) has deep expertise in clock and frequency components and offers a comprehensive range of RTC solutions. Currently, YXC’s RTC family includes six main product series designed to meet diverse application requirements:
　　
　　Figure: YXC RTC Product Family
　　
　　(1) Discrete RTC: YSN8563 Series
　　
　　The YSN8563 is a low-power, I²C-bus interface discrete real-time clock with a compact design, excellent shock resistance, and high-temperature tolerance. It is especially suitable for portable devices and harsh-environment applications where high precision isn’t critical but flexible external crystal configuration is required.
　　
　　Key Features:
　　
　　Flexible Configuration: Supports external 32.768 kHz crystal with integrated oscillator capacitors, simplifying peripheral design.
　　Low Current Consumption: Typical value of only 0.9 µA, ideal for battery-powered applications.
　　Multi-functional: Provides calendar, alarm, timer, and interrupt functions.
　　Wide Supply Voltage Range: 1.2 V to 5.5 V.
　　Wide Operating Temperature Range: -40°C to +85°C.
　　Package Options: Available in SOP-8 and the more compact TSSOP-8 packages.
　　
　　YSN8563 Block Diagram:
　　
　　(2) Ultra-High-Precision RTC: YSN8025 Series
　　
　　The YSN8025 is an ultra-high-precision, low-power RTC with an I²C bus interface. It incorporates a temperature sensor and high-accuracy temperature compensation circuitry to ensure exceptional time accuracy even in demanding environments, making it ideal for high-precision applications.
　　
　　Key Features:
　　
　　Ultra-High Stability: ±3.4 ppm (-40°C to +85°C).
　　Built-in 32.768 kHz Crystal: No external crystal required.
　　Low Current Consumption: Typical value of 1.0 µA.
　　Wide Operating Temperature Range: -40°C to +85°C.
　　Wide Supply Voltage Range: 1.6 V to 5.5 V.
　　Package: SOP-14.
　　
　　YSN8025 Block Diagram:
　　
　　(3) Temperature-Compensated, Low-Power RTC: YSN8010 Series
　　
　　The YSN8010 is a low-power RTC with I²C bus interface and integrated temperature compensation. It features a built-in 32.768 kHz crystal and delivers good clock stability through temperature compensation, making it suitable for applications such as photovoltaics, security systems, and industrial switches.
　　
　　Key Features:
　　
　　Integrated 32.768 kHz Crystal: Simplifies design.
　　Built-in Temperature Sensor: Enables temperature compensation.
　　Good Stability: ±20 ppm (-20°C to +70°C), ±50 ppm (-40°C to +85°C).
　　Low Current Consumption: Typical value of 1.0 µA.
　　Package: SOP-8.
　　
　　YSN8010 Block Diagram:
　　
　　
　　(4) Miniaturized, Low-Power RTC: YSN8130 Series
　　
　　The YSN8130 is a low-power RTC with I²C bus interface and digital offset (calibration) capability. It integrates a crystal and supports backup battery operation. Its ultra-thin 3225 surface-mount package makes it ideal for space-constrained portable and compact electronic devices.
　　
　　Key Features:
　　
　　Ultra-Thin Package: Compact 3.2 mm × 2.5 mm × 1.0 mm footprint.
　　Integrated Crystal: Built-in 32.768 kHz crystal.
　　Digital Offset (Calibration) Function: Enables fine-tuning of time accuracy.
　　Low Current Consumption: Typical value of 0.9 µA.
　　High Stability: <5 ± 23 ppm (@ 25°C).
　　Backup Battery Support and Automatic Leap-Year Correction.
　　
　　YSN8130 Block Diagram:
　　
　　(5) High-Precision, High-Reliability RTC: YSN8900 Series
　　
　　The YSN8900 is a high-precision, low-power RTC with I²C bus interface. It integrates a high-accuracy temperature-compensated crystal oscillator (TCXO), advanced temperature compensation circuitry, and a temperature sensor to deliver outstanding time stability over a wide temperature range. It also supports seamless backup battery switching, making it a high-performance choice for applications demanding stringent accuracy and reliability.
　　
　　Key Features:
　　
　　Ultra-High Stability: ±5 ppm / ±3.4 ppm (-40°C to +85°C).
　　Integrated TCXO: Built-in 32.768 kHz temperature-compensated crystal oscillator.
　　Compact Package: 3.2 mm × 2.5 mm × 1.0 mm.
　　Backup Battery Switchover: Enables seamless power transition.
　　Periodic Timer Interrupt / Automatic Time Update Interrupt / Automatic Leap-Year Correction.
　　
　　YSN8900 Block Diagram:
　　
　　(6) Ultra-Low-Power RTC: YSN8111 Series
　　
　　The YSN8111 is an ultra-low-power RTC with I²C bus interface, featuring a built-in 32.768 kHz crystal and backup battery switchover capability. With industry-leading ultra-low current consumption and an extremely compact package size, it is ideally suited for portable, IoT, and industrial devices where battery life and space constraints are critical.
　　
　　Key Features:
　　
　　Extremely Low Current Consumption: Typical value of only 250 nA.
　　High Stability: ±11.5 ppm / ±23 ppm (@ 25°C).
　　Integrated 32.768 kHz Crystal: Simplifies design.
　　Backup Battery Switchover: Enables seamless power transition.
　　Ultra-Small Package: 3.2 mm × 2.5 mm × 0.9 mm.
　　Wide Operating Temperature Range: -40°C to +85°C.
　　
　　YSN8111 Block Diagram:
　　
　　II. Company Overview
　　
　　Since its founding in 1986, Yangxing Technology (YXC) has been deeply committed to the field of clock and frequency components, serving as a steadfast advocate for technological innovation and domestic substitution in timing solutions.
　　
　　Guided by the vision of “becoming a world-class provider of clock and frequency components,” YXC emphasizes R&D-driven growth. The company masters full-process crystal oscillator manufacturing technology, holds proprietary patents for programmable oscillators, and was the first in China to develop programmable crystal oscillators. YXC continues to invest heavily in cutting-edge R&D areas such as MEMS, high-stability crystal oscillators, and clock ICs.
　　
　　YXC has built a comprehensive and diverse timing product portfolio, offering end-to-end, scenario-based timing component selection solutions—from crystal oscillators to high-performance clock chips—widely applied in AI computing, communications, automotive electronics, and other fields.
　　
　　Recognized as a national-level “Specialized, Sophisticated, and Innovative” SME (“Little Giant”) and a National High-Tech Enterprise, YXC has earned trust through rigorous certifications including AEC-Q200 and IATF16949. The company also boasts a professional and efficient FAE team providing customized technical support. Leveraging advanced supply chain management, YXC maintains long-term, stable partnerships with upstream and downstream collaborators to ensure reliable supply and efficient delivery, creating shared success with global customers.