Overview
The STM32L4A6RGT6 is a high-performance, ultra-low-power microcontroller from STMicroelectronics, based on the 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 and a wide range of peripherals and interfaces. It is particularly suited for applications requiring high digital control and advanced analog capabilities, such as in electric vehicles and other energy-efficient systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | 1 MB flash, 320 KB SRAM |
| Supply Voltage | 1.71 V to 3.6 V (internal LDO), 1.05 V to 1.32 V (external SMPS) |
| Temperature Range | -40 °C to 85 °C / 125 °C (junction temperature up to 105 °C / 130 °C) |
| Package | 64-pin LQFP 10x10x1.4 mm |
| ADCs | Up to 3 fast 12-bit ADCs (5 Msps) |
| DACs | 2x 12-bit DAC output channels |
| Timers | 16 timers: 2x 16-bit advanced motor-control, 2x 32-bit, 5x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers |
| Communication Interfaces | USB OTG 2.0 full-speed, 4x I2C, 3x SPI, 5x USART, 2x CAN, SDMMC, SWPMI, etc. |
| Power Modes | Various power-saving modes including Shutdown, Standby, Stop 2, and more |
| Encryption | AES (128/256-bit key), HASH (SHA-256) hardware accelerators |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes (e.g., Shutdown, Standby, Stop 2)
- High-performance Arm® Cortex®-M4 CPU with FPU and DSP instructions
- Rich set of peripherals including up to 3 fast 12-bit ADCs, 2x 12-bit DACs, 2 operational amplifiers, and 2 ultra-low-power comparators
- Advanced communication interfaces: USB OTG 2.0, 4x I2C, 3x SPI, 5x USART, 2x CAN, SDMMC, SWPMI
- Integrated LCD driver 8x40 or 4x44 with internal step-up converter
- Up to 24 capacitive sensing channels and support for touchkey, linear, and rotary touch sensors
- AES and HASH hardware accelerators for encryption
- Dedicated Chrom-ART Accelerator for enhanced graphic content creation (DMA2D)
- True random number generator, CRC calculation unit, and 96-bit unique ID
Applications
- Electric vehicles and automotive systems requiring high digital control and advanced analog capabilities
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics and IoT devices requiring low power consumption
- Smart home and building automation systems
Q & A
- What is the core architecture of the STM32L4A6RGT6?
The STM32L4A6RGT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).
- What is the maximum operating frequency of the STM32L4A6RGT6?
The maximum operating frequency is up to 80 MHz.
- What are the power supply voltage ranges for the STM32L4A6RGT6?
The device operates from 1.71 V to 3.6 V (internal LDO) and 1.05 V to 1.32 V (external SMPS).
- What types of communication interfaces are available on the STM32L4A6RGT6?
The device features USB OTG 2.0, 4x I2C, 3x SPI, 5x USART, 2x CAN, SDMMC, SWPMI, and more.
- Does the STM32L4A6RGT6 support encryption?
Yes, it includes AES (128/256-bit key) and HASH (SHA-256) hardware accelerators.
- What are the available power-saving modes for the STM32L4A6RGT6?
The device supports various power-saving modes including Shutdown, Standby, Stop 2, and more.
- What is the temperature range for the STM32L4A6RGT6?
The device operates in the -40 °C to 85 °C / 125 °C temperature range.
- What type of memory does the STM32L4A6RGT6 have?
The device has 1 MB of flash memory and 320 KB of SRAM.
- Does the STM32L4A6RGT6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
- What is the package type for the STM32L4A6RGT6?
The device is available in a 64-pin LQFP 10x10x1.4 mm package.
