STMicroelectronics STM32L422RBT6P

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L4
Packaging Tray | NULL
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, (External SMPS Required)
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)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-LQFP (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L422RBT6P is a 32-bit ARM Cortex-M4 MCU from STMicroelectronics, featuring 128KB flash and 40KB RAM. Operating at 80MHz with 1.71V-3.6V supply, it includes brown-out detect, DMA, PWM, and WDT in a 64-LQFP package, optimized for low-power and high-performance embedded applications.

  • Efficient core: Cortex-M4 with FPU accelerates math-heavy tasks.
  • Low voltage: 1.71V operation extends battery life.
  • Robust protection: Brown-out detect prevents data corruption.
  • Compact memory: 128KB flash for moderate applications.

IoT Edge Devices

80MHz Cortex-M4 and 40KB RAM handle MQTT and TLS stacks efficiently.

Wearable Health Monitors

Low voltage operation and DMA for sensor data streaming.

Industrial Process Control

Brown-out detect and WDT ensure fail-safe operation.

Smart Agriculture

128KB flash for logging and PWM for actuator control.

Portable Instruments

High-speed ADC and DMA for precise measurements.

Consumer Electronics

Rich peripheral set for multi-functional devices.

Q: What is the core architecture?
A: ARM Cortex-M4 with FPU.
Q: What is the supply voltage?
A: 1.71V to 3.6V, suitable for low-power designs.
Q: Does it require external SMPS?
A: Yes, external SMPS is required for certain power modes.
Q: What is the package?
A: 64-LQFP, standard for industrial use.
Base Product Number : STM32L422RBT6P
128KB Flash 32-bit MCU 64-LQFP 80MHz ARM Cortex-M4 Brown-out DMA Low Power PWM STM32 WDT
Q: What is the core architecture?
A: ARM Cortex-M4 with FPU.
Q: What is the supply voltage?
A: 1.71V to 3.6V, suitable for low-power designs.
Q: Does it require external SMPS?
A: Yes, external SMPS is required for certain power modes.
Q: What is the package?
A: 64-LQFP, standard for industrial use.