M261/M262/M263 SERIES PRODUCT BRIEF M261/M262/M263 Series Arm Cortex -M 32-bit Microcontroller NuMicro Family M261/M262/M263 Series Product Brief The information described in this document is the exclusive intellectual property of Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton. Nuvoton is providing this document only for reference purposes of NuMicro microcontroller based system design. Nuvoton assumes no responsibility for errors or omissions. All data and specifications are subject to change without notice. For additional information or questions, please contact: Nuvoton Technology Corporation. www.nuvoton.com Mar. 28, 2019 Page 1 of 24 Rev. 1.00 M261/M262/M263 SERIES PRODUCT BRIEF M261/M262/M263 Series 1 GENERAL DESCRIPTION The NuMicro M261/M262/M263 series is a low-power microcontroller platform based on Arm Cortex -M23 core for Armv8-M architecture. It runs up to 64 MHz with 512 Kbytes embedded Flash memory in dual bank mode supporting Over-The-Air (OTA) firmware update and 96 Kbytes embedded SRAM. The 32-bit low-power microcontrollers supports low supply voltage from 1.8 ~ 3.6V and operating temperature range from -40 ~ +105 . Low-power Technology for IoT application Low power and robust security are two major vitals for Internet-of-Things (IoT) applications. The NuMicro M261/M262/M263 series provides multi power modes for diverse operating scenarios, such as Power-down mode (PD), Fast Wake-up Power-down mode (FWPD), Low Leakage Power-down mode (LLPD), Ultra Low Leakage Power-down mode (ULLPD), Standby Power- down mode (SPD) and Deep Power-down mode (DPD). The NuMicro M261/M262/M263 series also integrates RTC with independent V voltage source pin to support low power mode with BAT main power off and V only. Regarding the power consumption of the NuMicro BAT M261/M262/M263 series, 97 A/MHz (LDO mode) and 45 A/MHz (DC-DC mode) in normal run mode, 2.8 A in Standby Power-down mode, and less than 2A in Deep Power-down mode. Its low power, wide supply voltage and fast wake-up features make it suitable for battery-powered IoT applications. Secure Boot - Make sure your products in secure execution The NuMicro M261/M262/M263 series provides secure boot function for a system developer to create a secure execution system in the microcontroller. The secure boot is a chain of secure process for verifying each software identity and integrity on the system. Secure boot can help to make sure that a device boots using only software that is trusted by the original developer. When the MCU starts, the firmware checks the signature of boot software, if the signatures are valid, the MCU boots, and the firmware gives control to the operating system. Otherwise, the system will not run at all. eXecute-Only-Memory (XOM) - Protect the intelligent property of developers The NuMicro M261/M262/M263 series provides 4-region programable eXecute-Only-Memory (XOM) to secure critical program codes. The AES 256/192/128 hardware accelerator and True Random Number Generator (TRNG) are built-in for data encryption. Up to six tamper detection pins are implemented to avoid malicious damage from hacker. Accompany with 96-bit Unique Identification (UID) and 128-bit Unique Customer Identification (UCID) to enhance the product security. nd Voltage Adjustable Interface (VAI) - Support 2 I/O voltage without level-shifter The NuMicro M261/M262/M263 series integrates Voltage Adjustable Interface (VAI), up to 6 I/O nd pins to support the 2 I/O voltage from 1.8 ~ 3.6V to save level shifter components while connecting to external devices. Secure Digital Host Controller (SDHC) The NuMicro M261/M262/M263 series integrates one set of Secure Digital Host Controllers (SDHC), compliant with SD Memory Card Specification Version 2.0. It supports 50 MHz to achieve 200 Mbps at 3.3V operation, and dedicated DMA master with Scatter-Gather function to accelerate the data transfer between system memory and SD/SDHC/SDIO card. Rich Pheripherals for comprehensive product application scenarios The NuMicro M261/M262/M263 series is equipped with plenty of peripherals such as Timers, Watchdog Timers, RTC, PDMA, External Bus Interface (EBI), Low-power UART, Universal Serial 2 Control Interface (USCI), Qual SPI (QSPI), SPI/IS, I C, Smart Card Interface (ISO-7816-3), GPIOs, up to 24 channels of PWM, makes it highly suitable for connecting comprehensive external modules and LED lighting control. The NuMicro M261/M262/M263 series also integrates high performance analog front-end circuit blocks, such as one 16 channels of 12-bit 3.76 MSPS SAR ADC, two 12-bit 1 MSPS voltage type DAC, two rail-to-rail analog comparator Mar. 28, 2019 Page 2 of 24 Rev. 1.00