STM32L412RBT6
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STMicroelectronics STM32L412RBT6

Manufacturer No:
STM32L412RBT6
Manufacturer:
STMicroelectronics
Package:
Tray
Description:
IC MCU 32BIT 128KB FLASH 64LQFP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The STM32L412RBT6 is a microcontroller from STMicroelectronics, part of the STM32L412xx family. It is an ultra-low-power device based on the Arm Cortex-M4 CPU with a floating-point unit (FPU), operating at frequencies up to 80 MHz. This MCU is designed for low-power applications and features advanced power-saving modes, including shutdown, standby, and stop modes, making it suitable for battery-powered devices and energy-efficient systems.

Key Specifications

ParameterValue
CoreArm 32-bit Cortex-M4 CPU with FPU
FrequencyUp to 80 MHz
Flash Memory128 KB
SRAM40 KB (including 8 KB with hardware parity check)
Power Supply1.71 V to 3.6 V (internal LDO), 1.00 to 1.32 V (external SMPS)
Operating Temperature-40 °C to +85 °C / +125 °C
ADC2x 12-bit, 5 Msps
Timers1x 32-bit, 4x 16-bit general purpose, 2x 16-bit low-power, 1x 16-bit advanced motor control
Communication Interfaces3x I2C, 2x SPI, 3x USART, 1x LPUART, 1x USB 2.0 full-speed
Package64-pin LQFP

Key Features

  • Ultra-low-power consumption with FlexPowerControl, including shutdown, standby, and stop modes.
  • Advanced analog peripherals: 2x 12-bit ADCs, 1x operational amplifier, 1x ultra-low-power comparator.
  • Rich communication interfaces: USB 2.0 full-speed, I2C, SPI, USART, LPUART.
  • Support for capacitive sensing with up to 12 channels.
  • RTC with hardware calendar, alarms, and calibration.
  • True random number generator, CRC calculation unit, and 96-bit unique ID.
  • Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell.

Applications

The STM32L412RBT6 is suitable for a wide range of low-power applications, including:

  • Battery-powered devices such as wearables, smart home devices, and IoT nodes.
  • Energy-efficient industrial control systems and automation.
  • Medical devices requiring low power consumption.
  • Automotive systems, especially those needing robust and reliable performance in varying temperatures.
  • Consumer electronics that demand high performance with low energy usage.

Q & A

  1. What is the core architecture of the STM32L412RBT6?
    The core is based on the Arm 32-bit Cortex-M4 CPU with a floating-point unit (FPU).
  2. What is the maximum operating frequency of the STM32L412RBT6?
    The maximum operating frequency is up to 80 MHz.
  3. How much flash and SRAM memory does the STM32L412RBT6 have?
    The device has 128 KB of flash memory and 40 KB of SRAM.
  4. What are the power supply ranges for the STM32L412RBT6?
    The power supply ranges are 1.71 V to 3.6 V (internal LDO) and 1.00 to 1.32 V (external SMPS).
  5. What are the operating temperature ranges for the STM32L412RBT6?
    The operating temperature ranges are -40 °C to +85 °C / +125 °C.
  6. What types of timers are available on the STM32L412RBT6?
    The device features 1x 32-bit timer, 4x 16-bit general-purpose timers, 2x 16-bit low-power timers, and 1x 16-bit advanced motor control timer.
  7. Does the STM32L412RBT6 support capacitive sensing?
    Yes, it supports up to 12 capacitive sensing channels.
  8. What communication interfaces are available on the STM32L412RBT6?
    The device includes USB 2.0 full-speed, I2C, SPI, USART, and LPUART interfaces.
  9. What development tools are supported by the STM32L412RBT6?
    The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell.
  10. Is the STM32L412RBT6 suitable for battery-powered devices?
    Yes, it is designed for low-power applications and is highly suitable for battery-powered devices.

Product Attributes

Core Processor:ARM® Cortex®-M4
Core Size:32-Bit Single-Core
Speed:80MHz
Connectivity:I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB
Peripherals:Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O:52
Program Memory Size:128KB (128K x 8)
Program Memory Type:Flash
EEPROM Size:- 
RAM Size:40K x 8
Voltage - Supply (Vcc/Vdd):1.71V ~ 3.6V
Data Converters:A/D 16x12b
Oscillator Type:Internal
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:64-LQFP
Supplier Device Package:64-LQFP (10x10)
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Similar Products

Part Number STM32L412RBT6 STM32L412RBT6P STM32L422RBT6 STM32L412CBT6 STM32L412KBT6 STM32L412R8T6 STM32L412RBI6 STM32L412RBT3
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Active Active Active Active Active Active Active
Core Processor ARM® Cortex®-M4 ARM® Cortex®-M4 ARM® Cortex®-M4 ARM® Cortex®-M4 ARM® Cortex®-M4 ARM® Cortex®-M4 ARM® Cortex®-M4 ARM® Cortex®-M4
Core Size 32-Bit Single-Core 32-Bit Single-Core 32-Bit Single-Core 32-Bit Single-Core 32-Bit Single-Core 32-Bit Single-Core 32-Bit Single-Core 32-Bit Single-Core
Speed 80MHz 80MHz 80MHz 80MHz 80MHz 80MHz 80MHz 80MHz
Connectivity I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O 52 50 52 38 26 52 52 52
Program Memory Size 128KB (128K x 8) 128KB (128K x 8) 128KB (128K x 8) 128KB (128K x 8) 128KB (128K x 8) 64KB (64K x 8) 128KB (128K x 8) 128KB (128K x 8)
Program Memory Type Flash Flash Flash Flash Flash Flash Flash Flash
EEPROM Size - - - - - - - -
RAM Size 40K x 8 40K x 8 40K x 8 40K x 8 40K x 8 40K x 8 40K x 8 40K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V 1.71V ~ 3.6V 1.71V ~ 3.6V 1.71V ~ 3.6V 1.71V ~ 3.6V 1.71V ~ 3.6V 1.71V ~ 3.6V 1.71V ~ 3.6V
Data Converters A/D 16x12b A/D 16x12b A/D 16x12b A/D 10x12b A/D 10x12b A/D 16x12b A/D 16x12b A/D 16x12b
Oscillator Type Internal Internal Internal Internal Internal Internal Internal Internal
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 64-LQFP 64-LQFP 64-LQFP 48-LQFP 32-LQFP 64-LQFP 64-UFBGA 64-LQFP
Supplier Device Package 64-LQFP (10x10) 64-LQFP (10x10) 64-LQFP (10x10) 48-LQFP (7x7) 32-LQFP (7x7) 64-LQFP (10x10) 64-UFBGA (5x5) 64-LQFP (10x10)

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