Overview
The STM32L4A6QGI6P 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 STM32L4A6QGI6P is part of the STM32L4A6xG family, which is known for its ultra-low-power consumption and advanced peripherals. It includes 1 MB of flash memory, 320 KB of SRAM, and a flexible external memory controller. The device supports a wide range of communication interfaces and analog peripherals, making it suitable for various applications requiring low power and high performance.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 80 MHz |
| Memory | 1 MB flash, 320 KB SRAM |
| Power Supply | 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 (+105 °C junction), -40 °C to +125 °C (+130 °C junction) |
| ADCs | Up to 3 fast 12-bit ADCs (5 Msps), up to 16-bit with hardware oversampling |
| DACs | 2x 12-bit DAC output channels, low-power sample and hold |
| 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 U(S)ARTs, 2x CANs, SDMMC, SWPMI, IRTIM |
| Encryption | AES (128/256-bit key), HASH (SHA-256) |
| Power Modes | VBAT mode: 320 nA, Shutdown mode: 25 nA, Standby mode: 108 nA, Stop 2 mode: 2.57 µA, Run mode: 91 µA/MHz (LDO), 37 μA/MHz (SMPS) |
| Package | UFBGA 132 (7x7x0.6 P 0.5 mm) |
Key Features
- Ultra-low-power with FlexPowerControl, supporting various power-saving modes such as VBAT, Shutdown, Standby, and Stop modes.
- High-performance Arm® Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™), and DSP instructions.
- Rich set of analog peripherals including 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Advanced communication interfaces: USB OTG 2.0 full-speed, 4x I2C, 3x SPI, 5x U(S)ARTs, 2x CANs, SDMMC, SWPMI, and IRTIM.
- Encryption hardware accelerators: AES (128/256-bit key) and HASH (SHA-256).
- Dedicated Chrom-ART Accelerator for enhanced graphic content creation (DMA2D).
- Up to 24 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors.
- Internal voltage reference buffer, low-power RTC, and multiple timers including advanced motor-control timers.
Applications
The STM32L4A6QGI6P is suitable for a wide range of applications that require low power consumption and high performance. These include:
- Industrial automation and control systems.
- Medical devices requiring precise analog measurements and low power.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, especially those needing advanced communication interfaces and security features.
- IoT devices that require efficient power management and robust communication capabilities.
Q & A
- What is the core architecture of the STM32L4A6QGI6P?
The STM32L4A6QGI6P is based on the Arm® 32-bit Cortex®-M4 CPU with a Floating Point Unit (FPU).
- What is the maximum operating frequency of the STM32L4A6QGI6P?
The maximum operating frequency is up to 80 MHz.
- What are the power supply ranges for the STM32L4A6QGI6P?
The device operates from 1.71 V to 3.6 V using the internal LDO regulator and from 1.05 V to 1.32 V using an external SMPS supply.
- What are the key power-saving modes of the STM32L4A6QGI6P?
The device supports VBAT mode, Shutdown mode, Standby mode, and Stop modes, among others.
- What types of communication interfaces are available on the STM32L4A6QGI6P?
The device includes USB OTG 2.0 full-speed, 4x I2C, 3x SPI, 5x U(S)ARTs, 2x CANs, SDMMC, SWPMI, and IRTIM.
- Does the STM32L4A6QGI6P have encryption capabilities?
Yes, it includes AES (128/256-bit key) and HASH (SHA-256) hardware accelerators.
- What is the temperature range for the STM32L4A6QGI6P?
The device operates in the -40 °C to +85 °C (+105 °C junction) and -40 °C to +125 °C (+130 °C junction) temperature ranges.
- How much flash and SRAM memory does the STM32L4A6QGI6P have?
The device has 1 MB of flash memory and 320 KB of SRAM.
- What types of timers are available on the STM32L4A6QGI6P?
The device includes 16 timers: 2x 16-bit advanced motor-control, 2x 32-bit, 5x 16-bit general purpose, 2x 16-bit basic, and 2x low-power 16-bit timers.
- Does the STM32L4A6QGI6P support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
- What development tools are available for the STM32L4A6QGI6P?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
