Shenzhen Meiyuxin Technology Co., Ltd. [MCU agent] Brand new original STM32L471RET6 Arm Cortex-M4 MCU! ! !

Product Description:

The STM32L471xx devices are the ultra-low-power microcontrollers based on the highperformance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz.

The Cortex-M4 core features a Floating point unit (FPU) single precision which supports allArm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32L471xx devices embed high-speed memories (Flash memory up to 1 Mbyte, up to 128 Kbyte of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

The STM32L471xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.

The devices offer up to three fast 12-bit ADCs (5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulators (DFSDM). In addition, up to 24 capacitive sensing channels are available.

They also feature standard and advanced communication interfaces.

• Three I2Cs

• Three SPIs

• Three USARTs, two UARTs and one Low-Power UART.

• Two SAIs (Serial Audio Interfaces)

• One SDMMC

• One CAN

• One SWPMI (Single Wire Protocol Master Interface)

The STM32L471xx operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of lowpower applications.

Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMPs and comparators, and up to 14 I/Os can be supplied independently down to 1.08V. A VBAT input allows to backup the RTC and backup registers.

The STM32L471xx family offers four packages from 64-pin to 144-pin packages.