Smart Home Audio(325)



The NuMicro® M071R1E3AE series is a 32-bit microcontroller based on Arm Cortex®-M0 core targeted for smart home appliance applications. It offers up to 72 MHz CPU frequency, 128 KB Flash memory for code storage, 16 KB SRAM for runtime operation and configurable Data Flash memory for parameters. Additionally, in response to the code security requirements, the M071R1E3AE series integrates flash security lock to provide a secure code execution area to protect the developer's intellectual property. The M071R1E3AE series also supports online updates using In-System Programmer (ISP), In-Circuit Programmer (ICP) and In-Application Programmer (IAP). The In-System Programmer (ISP) with 8 KB Loader ROM (LDROM) supports firmware updates through the Firmware Over-The-Air (FOTA) process. Besides, a Peripheral Direct Memory Access (PDMA) is provided to reduce the data access overhead of CPU core to peripherals.

The M071R1E3AE series supports plenty of peripherals, including one built-in temperature sensor with 1°C resolution, adjustable VDDIO pins to meet a wide voltage range from 1.8V to 5.5V, 6 channels of 16-bit 144 MHz high-speed PWM for precise control, 3 sets of UART, 2 set of SPI, 2 sets of I²C, and a Real-Time Clock (RTC). The M071R1E3AE series also provides rich analog peripherals including 12 channels of 12-bit ADC and integrates one set of USB 2.0 full speed Device with on-chip PHY which supports crystal-less in device mode.

Target Application:

  • Main control of White Goods
  • Main control of Smart Home Appliances
  • Industrial control
  • Motor control
  • Metering applications
Operating Characteristics
  - Operating voltage from 2.5V to 5.5V
  - Operating temperature from -40°C to 105°C
  - ESD HBM 8 kV
  - EFT 4.4 kV
  - Up to 72 MHz ARM® Cortex®-M0
  - Single-cycle 32-bit hardware multiplier
  - NVIC for 32 interrupt inputs, each with 4-levels of priority
  - 128 KB application ROM (APROM) supports Flash Security Lock
  - 8 KB Loader ROM (LDROM)
  Up to 128 KB Data Flash memory with configurable memory size
  - 512 B page erase for all embedded Flash memory
  - 16 KB embedded SRAM
  - Built-in 4~24 MHz high speed crystal oscillator for precise timing operation
  - Built-in 32.768 kHz low speed crystal oscillator for Real Time Clock (RTC)
  - Dynamically calibrating the HIRC to 22.1184 MHz by external 32.768 kHz crystal oscillator (LXT)
  - Built-in 48 MHz internal high speed RC oscillator (HIRC) (Frequency variation < 2% at -40°C ~ +105°C)
  - Built-in 10 kHz low speed RC oscillator (LIRC) for Watchdog Timer and Wake-up operation
  - PLL up to 72 MHz for high resolution PWM operation
Power management
  - Three power modes: Normal run, Idle and Normal Power-down mode
  - Wake up from Normal Power-down mode by RTC, WDT, I²C, Timer, UART, BOD, GPIO, USBD
Timer & PWM
  - 4 sets of 32-bit timers
  - 1 PWM module; each module provides 6 output channels.
  - 1 Watchdog Timer
  - 1 Windows Watchdog Timer
  - 9 channels (PDMA)
  - Supports CRC
Analog Peripheral
  - 1 set of 12-bit, 12 channel, 1 MSPS SAR ADC
  - Built-in internal reference voltage
  - 3 sets of UART with IrDA
  - 2 sets of I²C device interfaces with SMBus/PMBus (up to 1 Mbps)
  - 1 set of SPI
  - 1 set of USB 2.0 full speed Device with on-chip PHY (supporting crystal-less in device mode)
Cyclic Redundancy Calculation (CRC)
Real Time Clock (RTC)
Up to 45 I/O pins with interrupt capability
IEC60730-1 Class B
  - Certified IEC60730-1 Class B Software Test Library (STL)
Development Platform Support
  - Arm Keil RVMDK and IAR EWARM IDE
  - Free GNU compiler with Eclipse IDE support
  - ICP (In Circuit Programmer) support for updating internal code via Nu-Link debugger
  - ISP (In System Programmer) support for updating code through UART, SPI, I²C, RS-485
  - Pin Viewer for real time monitoring the status of all I/O pins
  - PinConfigure tool for pin assignment, initial code generation and OrCAD/Protel part generation
96-bit Unique ID (UID)
128-bit Unique Customer ID (UCID)
Package LQFP64(14x14) pitch 0.8mm
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