Overview
The STM32L4A6VGT6P is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L4A6xG family. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 80 MHz. The Cortex-M4 core includes a Floating Point Unit (FPU) that supports all Arm® single-precision data-processing instructions and data types, along with a full set of DSP instructions and a Memory Protection Unit (MPU) for enhanced application security.
This microcontroller is designed to meet the demands of low-power applications, featuring high-speed memories, a flexible external memory controller, and an extensive range of enhanced I/Os and peripherals. It is particularly suited for applications requiring high-performance analog and digital control, such as in electric vehicles.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Processor | Arm® Cortex®-M4 32-bit RISC |
| Core Speed | Up to 80 MHz |
| Program Memory | 1 MB Flash, 2 banks read-while-write |
| SRAM | 320 KB, including 64 KB with hardware parity check |
| Supply Voltage | 1.71 V to 3.6 V (internal LDO regulator), 1.05 V to 1.32 V (external SMPS supply) |
| Operating Temperature | -40°C to +85°C (+105°C junction), -40°C to +125°C (+130°C junction) |
| Package | 100-pin LQFP |
| Number of I/Os | Up to 136 fast I/Os, most 5 V-tolerant, up to 14 I/Os with independent supply down to 1.08 V |
| Analog Peripherals | Up to three 12-bit ADCs (5 Msps), two DAC channels, two operational amplifiers, two comparators |
| Communication Interfaces | USB OTG 2.0 full-speed, four I2Cs, three SPIs, three USARTs, two UARTs, two SAIs, one SDMMC, two CANs |
| Encryption | AES (128/256-bit key), HASH (SHA-256) |
Key Features
- Ultra-Low Power Consumption: Features a comprehensive set of power-saving modes, including Stop mode with RTC and backup registers, and ultra-low-power timers.
- High-Performance Core: Arm® Cortex®-M4 core with FPU, supporting all Arm® single-precision data-processing instructions and data types.
- Advanced Analog Peripherals: Includes up to three fast 12-bit ADCs, two DAC channels, two operational amplifiers, and two comparators.
- Rich Communication Interfaces: Supports USB OTG 2.0 full-speed, four I2Cs, three SPIs, three USARTs, two UARTs, two SAIs, one SDMMC, and two CANs.
- Encryption Hardware Accelerators: Includes AES (128/256-bit key) and HASH (SHA-256) accelerators.
- Capacitive Sensing: Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- Integrated LCD Driver: Supports 8x40 or 4x44 LCD with internal step-up converter.
- Timer and Clock Management: Features 16 timers, including two 32-bit timers, five 16-bit general-purpose timers, and two low-power 16-bit timers.
Applications
- Electric Vehicles (EVs): Designed to meet the enhanced digital control and high-performance analog requirements of EV applications.
- Industrial Automation: Suitable for applications requiring high-performance analog and digital control, such as motor control and industrial automation.
- Medical Devices: Can be used in medical devices that require low power consumption and high-performance processing.
- Consumer Electronics: Ideal for consumer electronics that need advanced analog and digital capabilities with low power consumption.
- IoT Devices: Suitable for Internet of Things (IoT) devices that require efficient power management and robust communication interfaces.
Q & A
- What is the core processor of the STM32L4A6VGT6P?
The core processor is the Arm® Cortex®-M4 32-bit RISC core.
- What is the maximum operating frequency of the STM32L4A6VGT6P?
The maximum operating frequency is up to 80 MHz.
- How much flash memory and SRAM does the STM32L4A6VGT6P have?
The device has 1 MB of flash memory and 320 KB of SRAM.
- What is the supply voltage range for the STM32L4A6VGT6P?
The supply voltage range is 1.71 V to 3.6 V (internal LDO regulator) and 1.05 V to 1.32 V (external SMPS supply).
- What are the key analog peripherals of the STM32L4A6VGT6P?
The device includes up to three 12-bit ADCs, two DAC channels, two operational amplifiers, and two comparators.
- Does the STM32L4A6VGT6P support encryption?
Yes, it includes AES (128/256-bit key) and HASH (SHA-256) hardware accelerators.
- What communication interfaces are available on the STM32L4A6VGT6P?
The device supports USB OTG 2.0 full-speed, four I2Cs, three SPIs, three USARTs, two UARTs, two SAIs, one SDMMC, and two CANs.
- How many I/Os does the STM32L4A6VGT6P have?
The device has up to 136 fast I/Os, most of which are 5 V-tolerant, and up to 14 I/Os can be supplied independently down to 1.08 V.
- What is the operating temperature range of the STM32L4A6VGT6P?
The operating temperature range is -40°C to +85°C (+105°C junction), and -40°C to +125°C (+130°C junction).
- What are some typical applications for the STM32L4A6VGT6P?
Typical applications include electric vehicles, industrial automation, medical devices, consumer electronics, and IoT devices.
