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STM32L476RET6

Ultra-low-power Cortex-M4 MCU, 80MHz, 512KB Flash, 128KB RAM, USB, LCD, LQFP-64

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Pieza del fabricante：

STM32L476RET6

Paquete：

LQFP-64 (10.00 x 10.00 x 1.45 mm)

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Descripción

Productos

The STM32L476RET6 from STMicroelectronics is an ultra-low-power ARM Cortex-M4 32-bit MCU with FPU, 512 KB Flash, 128 KB SRAM, USB OTG FS, LCD controller, and rich analog peripherals in an LQFP-64 package. Operating at up to 80 MHz with 100 DMIPS performance, it targets battery-powered and energy-sensitive applications.

Especificaciones

Núcleo ARM Cortex-M4 with FPU @ 80 MHz
Flash Memory 512 KB (dual-bank, read-while-write)
SRAM 128 KB (96 KB SRAM1 + 32 KB SRAM2 with parity)
ADC 3 x 12-bit, 5 Msps (up to 16-bit with oversampling)
DAC 2 x 12 bits
Op-Amps 2 with built-in PGA
Comparators 2 ultra-low-power
Temporizadores 16 (2x advanced motor, 2x 32-bit, 5x 16-bit GP, etc.)
Comunicación 6x USART, 3x I2C, 3x SPI, CAN 2.0B, USB OTG FS, SAI, SWPMI, SDMMC
Tensión de alimentación 1.71 V to 3.6 V
Temperatura de funcionamiento -40°C to +85°C
Paquete LQFP-64

Características

  • Ultra-low-power: 30 nA Shutdown, 120 nA Standby, 420 nA Standby with RTC, 100 µA/MHz Run
  • ART Accelerator for zero-wait-state Flash execution at 80 MHz
  • Dual-bank Flash with PCROP (proprietary code readout protection)
  • Hardware Firewall for secure code and data protection
  • DFSDM (Digital Filter for Sigma-Delta Modulators)
  • LCD controller 8×40 or 4×44 with step-up converter
  • Capacitive sensing with up to 24 touch channels

Aplicaciones

  • Smart meters and utility monitoring
  • Wearable health and fitness devices
  • Industrial sensor nodes and data loggers
  • Portable medical instruments
  • Building automation and home automation

The STM32L476RET6 from STMicroelectronics is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M4 processor core with floating-point unit (FPU), operating at frequencies up to 80 MHz and delivering 100 DMIPS performance. The device integrates 512 KB of dual-bank Flash memory supporting read-while-write operations and 128 KB of SRAM including 32 KB with hardware parity check that can be retained in Standby mode. The rich peripheral set includes three 12-bit ADCs at 5 Msps with hardware oversampling up to 16-bit resolution, two 12-bit DACs, two operational amplifiers with programmable gain, two ultra-low-power comparators, a USB OTG Full-Speed interface, an LCD controller, and 16 timers including two advanced motor-control timers. The device supports 18 communication interfaces including six USARTs, three I2C, three SPI, CAN 2.0B, two Serial Audio Interfaces (SAI), Single Wire Protocol Master Interface (SWPMI), and SDMMC. The FlexPowerControl architecture enables ultra-low-power modes down to 30 nA in Shutdown mode.

The STM32L476RET6 uses the ARM Cortex-M4 core with FPU, executing Thumb-2 instructions at up to 80 MHz through the ART Accelerator which provides 0-wait-state execution from Flash using instruction and data caches with prefetch. The Adaptive Real-Time (ART) accelerator eliminates Flash wait states by pre-fetching instructions and data. The multi-AHB bus matrix connects the CPU, DMA controllers, and peripherals through separate buses for concurrent access. The dual-bank Flash allows code execution from one bank while erasing or programming the other bank. The DFSDM peripheral interfaces directly with external sigma-delta modulators and provides digital filtering for precision measurement. Power management uses an internal LDO with multiple voltage domains, and the FlexPowerControl allows software to select among Run, Low-Power Run, Sleep, Low-Power Sleep, Stop 0/1/2, Standby, and Shutdown modes with different peripheral retention and wakeup latencies.

Grupo Pin Cuenta Función
VDD/VSS 8 Power supply and ground (including VDDA analog supply, VBAT backup)
PORTA (PA0-PA15) 16 ADC, DAC, TIM, USART, SPI, I2C, USB, COMP, OPAMP
PORTB (PB0-PB15) 16 ADC, TIM, I2C, SPI, USART, LCD, SAI, SWPMI
PORTC (PC0-PC15) 16 ADC, TIM, USART, SPI, SDMMC, LCD, DFSDM
PORTD (PD0-PD15) 12 USART, SPI, SDMMC, LCD, CAN, DFSDM
PORTE (PE0-PE15) 12 TIM, USART, CAN, SAI, LCD, DFSDM
NRST 1 Reset input (active low)
BOOT0 1 Boot mode selection
OSC_IN/OSC_OUT 2 Main oscillator (4-48 MHz HSE)
OSC32_IN/OSC32_OUT 2 32.768 kHz LSE oscillator
  • Smart Metering: Multi-rate electricity, gas, and water metering with LCD display, RTC, and tamper detection via capacitive sensing
  • Wearable Health Monitors: Battery-powered fitness trackers with ADC-based biometric sensing and BLE via UART bridge
  • Industrial Sensor Nodes: Low-power wireless sensor nodes with DFSDM for precision sigma-delta ADC interfacing
  • Dispositivos médicos portátiles: Blood glucose meters and pulse oximeters with 16-bit ADC oversampling and USB data transfer
  • Building Automation: HVAC controllers with LCD interface, capacitive touch, and CAN bus communication
Modelo Fabricante Flash RAM Speed Paquete Notas
STM32L476VET6 ST 512 KB 128 KB 80 MHz LQFP-100 More I/O, same die
STM32L475RET6 ST 512 KB 128 KB 80 MHz LQFP-64 Without LCD and AES
STM32L432KC ST 256 KB 64 KB 80 MHz UFQFPN-32 Smaller, lower cost
SAM4LS4CA Microchip 256 KB 64 KB 48 MHz TQFP-64 ARM Cortex-M4, lower perf
MSP432P401R TI 256 KB 64 KB 48 MHz LQFP-64 ARM Cortex-M4F alternative
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Servicio y embalaje

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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