M0A23 is an automotive grade microcontroller which passed AEC-Q100 Grade 1. M0A23 is an microcontroller based on Cortex-M0. The NuMicro® M0A23U series runs up to 48 MHz and supports hardware divider. It provides 32 Kbytes Flash memory, 4 Kbytes SRAM. It provides compact package, rich analog peripherals, -40°C to 125°C operating temperature, 2.4V ~ 5.5V operating voltage, CAN 2.0B and LIN interface for robust communication. #AEC-Q100 #125degree #Volcano #Microcontroller #Automotive #MCU #Nuvoton #NuMicro #M0A23 #Basic #Product #learning #en - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC buy now: https://direct.nuvoton.com/ contact us: SalesSupport@nuvoton.com

This video demonstrates the sample code of ADC by Nuvoton M031/M032 evaluation board. The sample code shows how to use Bandgap voltage to calculate the supply voltage. It includes the sample code description, source code tracing, and the steps to compile and download. You can also see how the sample code works in the end of this video. Users could easily know how to use ADC sample code and Nuvoton evaluation board by following the steps. #ADC #Bandgap #NuMicro #Nuvoton #MCU #SampleCode #PowerSupplyMonitoring #Basic #General #Training #Learning #en - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC buy now: https://direct.nuvoton.com/ contact us: SalesSupport@nuvoton.com

Hello everyone. Welcome back to Nuvootn’s YouTube channel. This is a reference design of a thermostat made by Nuvoton. The first screen shows the current room temperature of 25 degrees Celsius. You can also set your target temperature through the control panel. The middle switch is the power switch of temperature control. Press the Temperature icon and you can adjust backlight brightness by slide control. Back to the function page, press the Snow icon where you can change the strength of the air conditioner. You can increase or decrease the strength by these up and down arrows or you can press the snow icon for adjustment. Changing the heater, dehumidifier, and fan are the same. The third page is a calendar where you can set the date to book opening and closing the temperature control. What you saw is the reference design introduction. Now let’s talk about the composition of the board. In the middle of the board is a Nuvoton N9H20 main control chip. This main control chip has built-in 32 Mbytes DDR so the board is very clear and the hardware design is easy. At the top side, there is a 1 Gbits NAND Flash for code and pictures storage. At the bottom left there is a connector to the UART control interface. In the middle left area, there is a 5 Voltage (Micro USB) power input. In the upper right corner, there is an RS485 connection. Through this green connector, you can connect to RS485 for fans, air conditioners, and other devices' control. In the lower right corner, there is a chip for power IC and some other parts. The application reference design is concise and powerful. That’s all for the hardware introduction. Thank you for watching. - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC buy now: https://direct.nuvoton.com/tw/ contact us: SalesSupport@nuvoton.com #Product #Application #Learning #Intermediate #en

NuMicro® M031BT BLE 5.0 低功耗藍牙微控制器系列，以 Arm® Cortex®-M0 為核心，工作頻率高達 48 MHz，內建最高 128 KB Flash 和 16 KB SRAM，提供 BLE 5.0 和 2.4 GHz 雙模功能。相較於傳統集成簡單周邊的 BLE SoC，NuMicro® M031BT 系列內建豐富周邊與優異類比控制功能，實現一顆微控制器取代 BLE SoC 加控制晶片的方案，不僅大幅縮小 PCB 尺寸，QFN48封裝面積僅有 5mm x 5mm，也降低射頻佈局困難度，加上新唐參考設計方案與範例代碼，使得低功耗藍芽的應用開發變得相當容易。 NuMicro® M031BT 系列針對射頻應用提供高達 +8 dBm 的射頻發射功率、-94 dBm 的良好接收靈敏度、1 Mb/s 或 2 Mb/s 的傳輸速度，並且能在 2.4GHz 干擾嚴重的環境提供突出的抗噪表現，提升通訊距離和可靠性，滿足智慧家庭、消費電子以及工業物聯網等應用場景的需求。 NuMicro® M031BT 系列運作於 1.8V 至 3.6 V 工作電壓，內建 32 位硬體乘法器/除法器、高達 5 通道 PDMA、16 通道 12 位2 MSPS 高採樣率的 ADC 可運行在 1.8V 低電壓，提供精確且快速地效能表現，12 路 96 MHz PWM 可快速響應和精準的控制外部裝置。此外，M031BT 亦提供了豐富的周邊，例如 1 組 24 MHz SPI/I2S、3 組 6 MHz UART 並可支援單線式傳輸、2 組 I2C、1 組高彈性通用串行控制接口 (USCI) 可設為 UART, I2C 或 SPI。 NuMicro® M031BT 系列為了保護開發者的智慧財產權，內嵌一個額外的安全保護 Flash 區塊 (SPROM, Security Protection ROM)，提供一個獨立且安全加密執行區域以保護關鍵程式代碼。記憶體鎖定功能 (Flash lock bits) 設計提供韌體防止外界存取或寫入保護。每一顆M031BT 具有一個 96 位元晶片唯一序號 (Unique Identification, UID) 及一個 128 位元唯一客戶序號 (Unique Customer Identification, UCID)，大幅提升產品的保密與代碼安全性。 NuMicro® M031BT series: An low-power BLE 5.0 and 2.4GHz dual-mode microcontroller series by Arm® Cortex®-M0 core operating up to 48 MHz, with up to 128 KB Flash and 16 KB SRAM. In addition to the BLE 5.0 and 2.4GHz RF functions, the NuMicro® M031BT series built-in rich peripherals and analog control functions realize wireless connectivity. The 5mm x 5mm QFN48 package greatly reduces the PCB size and reduces RF layout difficulty. Furthermore, Nuvoton's reference design and rich sample code make the application development for low-power microcontroller with BLE/2.4G RF easier. The NuMicro® M031BT series provides up to +8 dBm RF transmit power, a good receiving sensitivity of -94 dBm, 1 Mb/s, or 2 Mb/s transmission speed RF applications, and outstanding anti-noise performance in 2.4GHz interference environments to ensure communication distance and reliability. With these, the M031BT series are expected to meet the needs of application scenarios such as industrial Internet of Things (IIoT), smart home, consumer electronics, etc. The NuMicro® M031BT series operates from 1.8V to 3.6V. It features a built-in 32-bit hardware divider, up to 5-channel PDMA, a 16-channel 12-bit 2 MSPS high sampling rate ADC that can run down to 1.8V low voltage, and 12-channel PWM running up to 96 MHz that can quickly respond and accurately control external devices. Besides, the M031BT also provides many peripherals such as one set of 24 MHz SPI/I2S, three sets of 6 MHz UART supporting single-wire transmission, two sets of I2C, and one set of highly flexible universal serial control interface (USCI) that can be configured as UART, I2C or SPI. To protect the intellectual property rights, the NuMicro® M031BT series is embedded with an additional security protection Flash block (Security Protection ROM, SPROM) to provide an independent and secure encrypted execution area to protect critical program code. Flash lock bits are designed to provide firmware to prevent external access or write protection. There is a 96-bit unique chip identification (Unique Identification, UID) and a 128-bit unique customer identification (UCID) on each M031BT, which significantly improves product confidentiality and code security. Nuvoton provides complete development tools, such as the NuMaker-M031BT evaluation board, software development kits, and sample codes, as well as free downloadable Keil MDK to speed up the end-product evaluation and development cycle. - 更多產品資訊，請至新唐科技網站 https://bit.ly/3hVdcmC 購買管道：https://direct.nuvoton.com/tw 聯絡我們：SalesSupport@nuvoton.com

Introduce the waterproof and noise immunity of ML56 touch key. Hello! Everyone! I am Nuvoton FAE Tim. Today, I will show you the waterproof and noise immunity of ML56 touch key. First introduce the waterproof and noise immunity of ML56 touch key. Good waterproof function, support finger touch with 2 mm depth water droplet. IEC 61000-4-6 conducted noise immunity (CNI) with 10 Vrms noise voltage. Next, we will explain the related parameter settings of the ML56 touch key, and first explain the touch sensitivity. #Pulse Width (Touch key sensing pulse width time control) Touch key sensitivity can be adjusted by setting Pulse Width properly, shorter Pulse Width setting comes with poor sensitivity and less power-consumption, vice versa. Then explain the stability of touch performance, Part 1. #Times (Touch key sensing times control) Touch key raw data stability can be adjusted by setting Times properly, shorter Times setting comes with poor raw data stability and less power-consumption, vice versa. Stability of touch performance, Part 2. #IIR (IIR filter) IIR filter can control the ratio of current raw data and previous one. User can enable IIR Filter to be against noise. It will increase the touch response time when enables IIR Filter. Stability of touch performance, Part 3. #Debounce (Touch key debounce) Touch key stability can be adjusted by setting Debounce properly, the debounce times for touch key entry (on) and release (off) detection, shorter Debounce setting comes with faster touch response time, vice versa. Stability of touch performance, Part 4. #Trace Baseline (Baseline is generated by “Calibration”) Touch key auto environment compensation is an algorithm that baseline tracking each touch key automatically at power-up and keeps compensating environment variation affects touch key performance during runtime. Based on the above parameter description, the following introduces the waterproof and noise immunity parameter settings. The first is waterproof parameter setting. Good waterproof function, support finger touch with 2 mm depth water droplet. Touch key system parameters are shown in the table Pulse Width = 500 ns Times = 128 Next is the noise immunity parameter setting IEC 61000-4-6 conducted noise immunity (CNI) with 10 Vrms noise voltage. Touch key system parameters are shown in the table. Pulse Width = 2 us Times = 128 IIR New = 6, Old = 2 Debounce Entry = 1, Release = 1 Then we use the ML56 NuMaker Board to show you the waterproof function of the touch key. Dip the finger in water first, and then touch the touch key. Repeat the above actions, we can see that the touch key still works normally and is not affected. Finally, we use the ML56 NuMaker Board to show you the noise immunity ability of the touch key. Turn on the walkie-talkie first, and then interfere with the touch key at close range, we can see that the touch key still operate normally and is not affected. That's all for today's video, thank you everyone! If you have any questions, please contact us. - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/tw/low-power-8051-series/ Contact us: SalesSupport@nuvoton.comon.com #Product #Learning #Basic #en

Hello! Everyone! I am Nuvoton FAE Tim. Today, I will show you ML56 Capacitive Touch Key Technology. First introduce the Capacitive Touch Key Fundamentals. The capacitance of the sensor without a finger touch is called as “parasitic capacitance”, CP. Parasitic capacitance results from the electric field between the sensor (including the sensor pad and traces) and other conductors in the system such as the ground planes, traces, any metal in the product’s chassis or enclosure, etc. The capacitance between the sensor pad and the finger is CF. The total capacitance CT of the sensor is the sum of CP and CF. Next, we will explain the ML56 Capacitive Touch Key Sensing Method. ML56 implements two switching capacitor banks for injecting charges to CP (or CT) and CR. CR is the parasitic capacitance of reference channel. After touch key calibration, CP and CR are balanced with CB and CCB (comparator output is “low”). Touch the sensing touch key which makes CT = CP + CF Now the negative input terminal voltage of the comparator is lower than positive side and comparator output is “high”. ML56 touch key controller will increase CCB to CCB’ to balance CT and CR again (comparator output is “low”). A finger touch can be detected by checking the difference of CCB and CCB’. By comparing the CCB’ shift level from CCB, the steady state to a predetermined threshold, the algorithm can determine whether the touch key is in ON (Touch) or OFF (No Touch) state. That's all for today's video, thank you everyone! If you have any questions, please contact us. - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/tw/low-power-8051-series/ Contact us: SalesSupport@nuvoton.comon.com #Product #Learning #Basic #en

Hello, everyone! I'm Chris, Field Application Engineer from Nuvoton Technology. Today, I will introduce you how to design NuMicro M251/ M252 application circuit. Let's start with the power application circuit of M251/M252. The external power should add 10uF and 0.1uF decoupling capacitors, and the capacitor should be placed close to the source of the external power supply. Before the external power enters the VDD/VDDIO/VBAT of the IC, 0.1uF bypass capacitors should be added separately, and the capacitors should be placed close to the IC. Before the external power enters the AVDD, the bead should be connected in series for filtering, and then 1uF, 0.1uF, and 0.01uF bypass capacitors should be added. The bead and capacitors should be placed close to the IC. Before connecting AVDD to VREF, first, connect the bead in series for filtering, and then add 2.2uF, 1uF, and 470pF bypass capacitors. The bead and capacitors should be placed close to the IC. A 1uF bypass capacitor should be added to the internal LDO power supply of the IC, and the capacitor should be placed close to the IC. AVSS and VSS should be connected in series with a bead for filtering. USB_VBUS should be connected in series with a 10-ohm resistor to enhance the ability of USB to resist EFT interference. USB_D+ and USB_D- should be connected in series with 27-ohm resistors for impedance matching. USB_VCC33_CAP needs to add a 1uF bypass capacitor. ICE_DAT and ICE_CLK should be connected to 100K ohm pull-up resistors. The two ends of the high-speed and low-speed crystal oscillators should be connected with an equivalent capacitance of 20pF to VSS. I2C_SCL and I2C_SDA should be connected to 4.7K ohm pull-up resistors. nRESET should be connected to a 10K ohm pull-up resistor and a 10 uF capacitor to VSS. The internal LDO power supply of the IC needs to add a 1 uF bypass capacitor, and the capacitor should be placed close to the IC. In addition, reference circuits for EBI, UART, SPI, and Audio are provided. VDD is connected to 4~32 MHz crystal oscillator, POR33, Power On Control, 5V to 1.5V LDO, IO Cell... and other circuits inside the IC. Among them, GPIO PF.4 to PF.6 and PA.0 to PA.5 output, the high level is equal to VDD. Vbus is connected to the USB 1.1 PHY inside the IC. This 1.5V regulator will provide 1.5V for Digital Logic, SRAM, Flash, POR15, LIRC, MIRC, HIRC... and so on. Vbat is connected to internal 1.5V RTC_LDO and provides 1.5V voltage for RTC, 32.768 kHz crystal oscillator, IO Cell PF.6. VDDIO is connected to some IO cell for use, and the output high level of PA.0 to PA.5 is equal to VDDIO. AVDD is connected to the analog circuit inside the IC, and VREF is the reference voltage of the analog circuit. That's all for the hardware design of the NuMicro M251/M252 series instruction. Thank you for watching it. If you have further questions, please contact us. #Tool #Training #Learning #Intermediate #en - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/numaker-m251sd Contact us: SalesSupport@nuvoton.com

The NAU82011YG is a highly efficient, filter-free, mono Class-D audio amplifier with variable gain, which is capable of driving a 4Ω load with up to 2.9W output power. This device provides chip enable pin with extremely low standby current and fast start-up time of 4ms. The NAU82011YG is ideal for battery driven portable applications. NAU82011YG features 91% efficiency, low quiescent current (i.e. 1.25mA at 3.6V) and superior EMI performance. The audio input of this device can be configured as either single-ended or differential input mode. Target Applications: • Portable Audio Device/Speaker • Portable Navigation Device • Tablet PC Key Features: • Audio Input - Differential / Single-end input - DC PSRR Typ.@95dB - CMRR Typ.@63dB • Audio Output - Powerful Mono Class-D Amplifier - 2.9W (4Ω @ 5V, 10% THD+N) - 2.3W (4Ω @ 5V, 1% THD+N) - Low Output Noise: 20 μVRMS • Advance Feature - Low Current Shutdown Mode - Click-and Pop Suppression - Integrated Image Reject Filter - Integrated feedback resistor of 300 kΩ • Operating Characteristics - voltage range: 2.5 V to 5.5 V - Temperature range: -40°C to 85°C - Low Quiescent Current: 1.2mA@3.6V, 1.7mA@5V • Package - WLCPS-9

Nuvoton NuMicro M031/M032 series microcontroller integrates an Arm Cortex-M0 core operating frequency up to 72 MHz, with 32-bit hardware divider, and is equipped with 16 ~ 512 KB Flash and 2~96 KB SRAM and provides 1.8V ~ 3.6V operating voltage. #Product #Learning #Basic #en - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC buy now: https://direct.nuvoton.com/tw/m031-series/ contact us: SalesSupport@nuvoton.com

The ML51 is a Flash embedded 1T 8051-based microcontroller. The instruction set of the ML51 is fully compatible with the standard 80C51 with performance enhanced and low power consumption. The ML51 runs up to 24 MHz at a wide voltage range from 1.8V to 5.5V, and contains up to 64/32/16/8 Kbytes Flash called APROM for programming code. The ML51 Flash supports In-Application-Programming (IAP) function, which enables on-chip firmware updates. The ML51 includes an additional configurable up to 4/3/2/1 Kbytes Flash area called LDROM, in which the Boot Code normally resides for carrying out the In-System-Programming (ISP). - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC buy now: https://direct.nuvoton.com/tw/ml51-series/ contact us: SalesSupport@nuvoton.com #Product #Learning #Basic #en 0:00 簡介 0:20 Agenda 0:45 NuMicro Product Portfolio 1:28 2019 Brand New MCU Platform 2:06 ML51/ML54/ML56 Series Portfolio 3:29 ML51 Series Low 4:50 NuMicro Naming Rule 6:06 NuMicro® ML51 Features 8:19 4 Different Power Modes 10:44 Low Power Mode Features • Wake up resource: WKT, ACMP, GPIO 12:37 Low Power VS Battery Life 13:28 ADC 15:00 Comparison of 8-bit Products Feature 17:13 Fire Fighting System 21:30 Battery Management System (BMS) 22:30 Gaming Phone 23:36 Development Board 24:13 Development Environment

Tubular motors can be easily seen everywhere such as curtains, rolling doors, and automatic clothes racks. As the concept of home automation is spreading widely, those products become more and more popular. Nuvoton provides completed platform, ML51 series for different needs of tubular motors. It’s based on 1-T 8051 core, running up to 24 MHz core speed. It provides 12-bit ADC detecting motor current and up to 2 sets of analog comparators for overcurrent and overvoltage protection. Much higher safety features for the tubular motors are realized. 105-degree high-temperature resistance makes it suitable for control box exposed outdoors. As for the multiple noises and inference environment, ML51 series provides strong immunity like 8 kV ESD and 4.4 kV EFT. Hello, everyone, welcome back to Nuvoton’s YouTube channel, I am the product manager of microcontrollers. Today I am going to show you our successful story, home automation with the Tubular motor, which adopts our latest industrial microcontroller, ML51 series. Today the topic we are going to talk about is the home automation and motorization system for curtain and doors. These tubular motors can be easily seen around everywhere, like curtain, rolling door, garage door, and automatic clothes rake…and so on. As the concept of home automation is spreading widely, those products are more and more popular. For example, the automatic curtain is popularly applied in hotel, new building, hospital and new store, why is this product become more and more popular? Lazy economy becomes a new type of consumption demand, people pursue a time-saving and labor-saving product, imagined if you have an emitter to control curtain automatically, and smart adjustment with the brightness of outdoor. And the new product hit the shelf is automatic clothes rake, now this new product is not only a hanger but also integrated with UV light disinfection, heating function and fan controller. About the garage door, now integrated more security function, such as overcurrent protection for device longevity, infrared system can be added to increase anti-pinch security. Nuvoton provides completed platform, ML51 series for different needs of tubular motors. It’s based on 1-T 8051 core, running at 24MHz core speed, provides 12-bit ADC can detect motor current, up to 2 sets of analog comparator to have overcurrent and over voltage protection so can provide much higher safety feature for the tubular motors. ML51 series also provide from 1.8V to 5V power supply, so whether the AC power or the battery supplied can easily be adapts to different power source. This series has up to 105-degree high temperature resistance, which also can be very suitable for control box explore at outdoors. As for the multiple noise and inference environment, ML51 series provides strong immunity like 8 kV ESD and 4.4 kV EFT. Nuvoton provides an easy-to-use development environment, which includes NuMaker board, Nu-Link, BSP and sample codes, those tools can help you shorten your development cycles. On the backside of each development board, you can find the website which the comprehensive information is available. Nuvoton has some successful case in China and Europe. We hope to have more new opportunities after releasing this video. Thanks for watching, if you like this video please give it a thumbs up, if you have any question can also leave a message at bottom, we will have personal to reply the question soon. The ML51 NuMaker boards are now available at Nuvoton official eStore direct.nuvoton.com. Thank you again for staying with us. Hope to see you soon. Bye~ For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC buy now: NuMaker-ML51PC/ http://direct.nuvoton.com/numaker-ml51pc NuTiny-ML51EB9AE/ https://direct.nuvoton.com/tw/nutiny-ml51eb9ae contact us: SalesSupport@nuvoton.com

This video is going to show you our latest Low power ML51 series microcontroller. The ML51 platform features high performance and pin-to-pin compatibility with our 32-bit microcontrollers, such as M480, M031, and M261 series . ML51 series supports up to 24MHz operation frequency, and 1.8V to 5.5V operating voltage, it provides four power modes: normal run mode, low power run mode, low power idle mode, and power down mode. In power down mode with multiple wake-up sources. The power consumption in low power idle mode is down to 13 μA and in power down mode it is less than 0.8 μA. When the clock runs at internal RC oscillator can also allow 9600 baud rate for UART communication. ADC supports up to 8 channels of 12-bit ADC, analog comparator and five levels of the internal reference voltage, ML51 provide two channels of PDMA, strong immunity like 8 kV ESD and 4.4 kV EFT. - For more information, please visit: http://www.nuvoton.com buy now: NuMaker-ML51PC/ http://direct.nuvoton.com/numaker-ml51pc NuTiny-ML51EB9AE/ http://direct.nuvoton.com/nutiny-ml51eb9ae contact us: SalesSupport@nuvoton.com #Product #Learning #Basic #en