STM32L422RBT6
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STMicroelectronics STM32L422RBT6

Manufacturer No:
STM32L422RBT6
Manufacturer:
STMicroelectronics
Package:
Tray
Description:
IC MCU 32BIT 128KB FLASH 64LQFP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The STM32L422RBT6 is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This device operates at a frequency of up to 80 MHz and features a Floating Point Unit (FPU) that supports all Arm® single-precision data-processing instructions and data types. It also includes a full set of DSP instructions and a Memory Protection Unit (MPU) for enhanced application security.

The microcontroller is designed for low-power applications, offering various power-saving modes such as VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode. It supports a wide temperature range of -40 °C to +85 °C (or +125 °C junction) and operates from a 1.71 to 3.6 V power supply.

Key Specifications

Parameter Specification
Core Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz
Memories 128 KB single bank flash, 40 KB SRAM (including 8 KB with hardware parity check)
Power Supply 1.71 V to 3.6 V
Temperature Range -40 °C to +85 °C (or +125 °C junction)
Power Consumption 300 nA in VBAT mode, 16 nA Shutdown mode, 32 nA Standby mode, 245 nA Standby mode with RTC, 0.7 µA Stop 2 mode, 0.95 µA with RTC
ADC 2x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling
Timers 1x 16-bit advanced motor-control, 1x 32-bit, 2x 16-bit general purpose, 1x 16-bit basic, 2x low-power 16-bit timers
Communication Interfaces USB 2.0 full-speed, 3x I2C, 3x USART, 1x LPUART, 2x SPI, 1x Quad SPI
Package LQFP 64 10x10x1.4 mm
Capacitive Sensing Channels Up to 12 channels
AES Hardware Accelerator 128/256-bit key encryption

Key Features

  • Ultra-low-power with FlexPowerControl
  • Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™)
  • High-speed memories: 128 KB flash, 40 KB SRAM
  • Quad SPI flash memories interface
  • Rich analog peripherals: 2x 12-bit ADC, 1x operational amplifier, 1x ultra-low-power comparator
  • AES: 128/256-bit key encryption hardware accelerator
  • Multiple communication interfaces: USB 2.0, I2C, USART, LPUART, SPI, Quad SPI
  • Up to 52 fast I/Os, most 5 V-tolerant
  • RTC with HW calendar, alarms, and calibration
  • Up to 12 capacitive sensing channels
  • True random number generator, CRC calculation unit, 96-bit unique ID
  • Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™

Applications

The STM32L422RBT6 is suitable for a wide range of low-power applications, including:

  • IoT devices requiring low energy consumption
  • Industrial automation and control systems
  • Medical devices and healthcare equipment
  • Consumer electronics with touch sensing capabilities
  • Automotive systems requiring robust and efficient microcontrollers

Q & A

  1. What is the core architecture of the STM32L422RBT6?

    The STM32L422RBT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).

  2. What is the power supply range for the STM32L422RBT6?

    The device operates from a 1.71 to 3.6 V power supply.

  3. What are the key power-saving modes of the STM32L422RBT6?

    The device features VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode.

  4. What types of timers are available on the STM32L422RBT6?

    The device includes 1x 16-bit advanced motor-control timer, 1x 32-bit timer, 2x 16-bit general purpose timers, 1x 16-bit basic timer, and 2x low-power 16-bit timers.

  5. Does the STM32L422RBT6 support capacitive sensing?

    Yes, it supports up to 12 capacitive sensing channels.

  6. What communication interfaces are available on the STM32L422RBT6?

    The device includes USB 2.0 full-speed, 3x I2C, 3x USART, 1x LPUART, 2x SPI, and 1x Quad SPI.

  7. Is the STM32L422RBT6 suitable for high-temperature environments?

    Yes, it operates in the -40 °C to +85 °C (or +125 °C junction) temperature range.

  8. What is the purpose of the AES hardware accelerator in the STM32L422RBT6?

    The AES hardware accelerator supports 128/256-bit key encryption.

  9. Does the STM32L422RBT6 have any specific development support features?

    Yes, it supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.

  10. What is the package type for the STM32L422RBT6?

    The device is available in an LQFP 64 10x10x1.4 mm package.

  11. Is the STM32L422RBT6 compliant with any environmental standards?

    Yes, it is ECOPACK2 compliant.

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 STM32L422RBT6 STM32L422RBT6P STM32L412RBT6 STM32L422CBT6 STM32L422KBT6 STM32L422RBI6
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status 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
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
Speed 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
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
Number of I/O 52 52 52 38 26 52
Program Memory Size 128KB (128K x 8) 128KB (128K x 8) 128KB (128K x 8) 128KB (128K x 8) 128KB (128K x 8) 128KB (128K x 8)
Program Memory Type 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
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
Data Converters A/D 16x12b A/D 16x12b A/D 16x12b A/D 10x12b A/D 10x12b A/D 16x12b
Oscillator Type 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)
Mounting Type 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-UFBGA
Supplier Device Package 64-LQFP (10x10) 64-LQFP (10x10) 64-LQFP (10x10) 48-LQFP (7x7) 32-LQFP (7x7) 64-UFBGA (5x5)

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