A real-time clock (RTC) is a key integrated circuit (IC) that provides consistent and accurate time and date information for electronic devices. Even if the device loses power, the RTC maintains stored time data using a small backup battery.
An RTC's core functions include precise timekeeping and calendar management, time retention after power outages, timestamping, and alarm/timer functionality. These features make it widely used in various electronic devices requiring precise timekeeping and synchronization, such as smart water and electricity meters, computers, smart homes, and industrial control.
1. YXC RTC Product Matrix
Yangxing Technology (YXC) is deeply engaged in the field of clock frequency devices and offers a comprehensive range of RTC solutions. Currently, YXC's RTC product family includes the following 6 main products, designed to meet the diverse needs of different application scenarios:
Figure: YXC RTC product family
(1) Separate RTC: YSN8563 series
YSN8563 is a low-power, I²C bus interface separate real-time clock with a compact design and excellent shock resistance and high temperature resistance. It is particularly suitable for portable devices and harsh environment applications that do not require high accuracy but require flexible configuration of external crystal oscillators.
Product Features:
· Flexible configuration: supports external 32KHz crystals and integrates oscillator capacitors to simplify peripheral design.
· Low current consumption: Typical value is only 0.9uA, very suitable for battery-powered applications.
· Multi-function: provides calendar, alarm, timer and interrupt functions.
· Wide supply voltage: 1.2V to 5.5V.
· Wide operating temperature: -40℃ to 85℃.
· Package: Available in SOP-8 and smaller TSSOP-8 packages.
YSN8563 Block Diagram:
(2) Ultra-high precision RTC: YSN8025 series
YSN8025 is an ultra-high precision, low power I²C bus interface RTC. It uses a temperature sensor and high-precision temperature compensation circuit to ensure excellent time accuracy even in harsh environments, making it an ideal choice for high-precision applications.
Product Features:
· Ultra-high stability: ±3.4ppm (-40℃ to +85℃).
· Built-in 32.768KHz crystal, no external crystal oscillator required.
· Low current consumption: Typical value 1.0uA.
· Wide operating temperature: -40℃ ~ +85℃.
· Wide supply voltage: 1.6V to 5.5V.
· Package: SOP-14.
YSN8025 Block Diagram:
(3) Temperature-compensated, low-power RTC: YSN8010 series
YSN8010 is a low-power RTC chip with an I²C bus interface and temperature compensation function. It has a built-in 32.768KHz crystal and provides good clock stability through temperature compensation. It is suitable for applications such as photovoltaics, security, and industrial switches.
Product Features:
· Internally integrated 32.768KHz crystal to simplify design.
· Built-in temperature sensor: for temperature compensation.
· Good stability: ±20ppm (-20℃~+70℃), ±50ppm (-40℃~+85℃).
· Low current consumption: typical value 1.0uA.
· Package: SOP-8.
YSN8010 Block Diagram:
(4) Miniaturized, low-power RTC: YSN8130 Series
YSN8130 is a low-power I²C bus interface RTC with digital offset (calibration) function. It has a built-in crystal and supports backup battery power supply. Its ultra-thin 3225 SMD package makes it very suitable for portable and small electronic devices with space constraints.
Product Features:
· Ultra-thin package: compact package of 3.2mm×2.5mm×1.0mm.
· Built-in crystal: integrated 32.768KHz crystal.
· Digital offset (calibration) function: supports time accuracy fine-tuning.
· Low current consumption: typical value 0.9uA.
· High stability: <5±23ppm (@25℃).
· Backup battery/leap year automatic correction function.
YSN8130 Block Diagram:
(5) High-precision, high-reliability RTC: YSN8900 series
YSN8900 is an I²C bus interface real-time clock that combines high precision and low power consumption. It has a built-in high-precision temperature-compensated crystal oscillator (TCXO), advanced temperature compensation circuit and temperature sensor, which can provide excellent time stability over a wide temperature range. It also supports backup battery switching function, making it a high-performance choice for applications with strict requirements on accuracy and reliability.
Product Features:
· Ultra-high stability: ±5ppm/±3.4ppm (-40℃~+85℃).
· Built-in TCXO: Integrated 32.768KHz temperature-compensated crystal oscillator.
· Compact package: 3.2mm×2.5mm×1.0mm.
· Backup battery switching function: Supports seamless power switching.
· Fixed-cycle timer interrupt function/time update automatic interrupt/leap year automatic correction.
YSN8900 Block Diagram:
(6) Ultra-low power RTC: YSN8111 series
YSN8111 is an ultra-low power I²C bus interface real-time clock with a built-in 32.768KHz crystal and a backup battery switch function. Its industry-leading ultra-low current consumption and extremely compact package size make it an ideal choice for portable, IoT and industrial equipment with extremely high requirements for battery life and space constraints.
Product Features:
· Extremely low current consumption: Typical value is only 250nA.
· High stability: ±11.5ppm/±23ppm (@ 25℃).
· Built-in 32K crystal: Simplifies design.
· Backup battery switch function: Supports seamless power switching.
· Ultra-small package: 3.2mm×2.5mm×0.9mm.
· Wide operating temperature range: -40℃~+85℃.
YSN8111 Block Diagram:
2. Brand Introduction
Yangxing Technology (YXC) has been deeply engaged in the clock frequency device field since 1986 and is a staunch promoter of clock frequency technology innovation and domestic substitution.
With the vision of "becoming a world-class clock frequency device service provider," the company is driven by research and development, has mastered a full range of crystal oscillator processes, holds patents for programmable crystal oscillators, and became the first programmable crystal oscillator manufacturer in China. The company continues to invest in cutting-edge R&D in MEMS, high-stability crystal oscillators, and clock chips.
YXC has built a comprehensive clock frequency product portfolio, offering a one-stop, full-scenario clock frequency device selection solution, from crystal oscillators to high-performance clock chips. These solutions are widely used in diverse fields such as AI computing, communications, and automotive electronics.
With honors such as the national "Little Giant" designation for specialized expertise and innovation, and a national high-tech enterprise designation, along with stringent certifications such as AEC-Q200 and IATF16949, Yangxing Technology has earned trust with its superior quality. At the same time, YXC has a professional and efficient FAE team to provide customized technical support, and relies on advanced supply chain management to establish long-term and stable cooperation with upstream and downstream partners to ensure stable supply and efficient delivery, and win-win future with global customers.
