Overview
The STM32L4R9ZGJ6 is a high-performance, ultra-low-power microcontroller from STMicroelectronics, part of the STM32L4+ series. It is based on the Arm® Cortex®-M4 32-bit RISC core, which includes a floating-point unit (FPU) and a DSP instruction set. This microcontroller is designed to offer a balance between high processing capabilities and low power consumption, making it suitable for a wide range of applications, particularly those requiring energy efficiency and advanced graphics capabilities.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 120 MHz |
| Program Memory Size | Up to 2 MB Flash |
| SRAM | 640 KB, including 64 KB with hardware parity check |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/125 °C |
| ADC Resolution | 12-bit, up to 16-bit with hardware oversampling |
| DAC | 2 x 12-bit, low-power sample and hold |
| Communication Interfaces | USB OTG 2.0, 2x SAIs, 4x I2C, 6x USARTs, 3x SPIs, CAN, SDMMC |
| Timers | 16x timers, including motor-control, general-purpose, and low-power timers |
| I/Os | Up to 136 fast I/Os, most 5 V-tolerant |
Key Features
- Ultra-low-power: Features FlexPowerControl with various low-power modes such as VBAT, Shutdown, Standby, and Stop modes, ensuring minimal power consumption.
- Advanced Graphics: Includes Chrom-ART Accelerator (DMA2D) for enhanced graphic content creation, Chrom-GRC (GFXMMU) for graphic resources optimization, and MIPI® DSI Host controller with two DSI lanes.
- Analog Peripherals: 12-bit ADC, 12-bit DAC, operational amplifiers, and ultra-low-power comparators.
- Communication Interfaces: Supports USB OTG 2.0, serial audio interfaces (SAI), I2C, USARTs, SPIs, CAN, and SDMMC.
- Timers and Watchdogs: Includes 16 timers and 2 watchdogs, ensuring robust timing and monitoring capabilities.
- External Memory Interface: Supports static memories such as SRAM, PSRAM, NOR, NAND, and FRAM.
- Development Support: Features serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM) for comprehensive development and debugging).
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial communication due to its robust timers and communication interfaces.
- Medical Devices: Ideal for medical equipment requiring low power consumption and advanced analog peripherals.
- Consumer Electronics: Used in devices such as smart home appliances, wearables, and other consumer electronics that need high performance and low power.
- Automotive Systems: Applicable in automotive systems requiring reliable and efficient microcontrollers with advanced communication capabilities.
- IoT Devices: Suitable for Internet of Things (IoT) applications that demand low power consumption and robust communication interfaces.
Q & A
- What is the core architecture of the STM32L4R9ZGJ6?
The STM32L4R9ZGJ6 is based on the Arm® 32-bit Cortex®-M4 CPU with a floating-point unit (FPU) and DSP instructions).
- What is the maximum clock frequency of the STM32L4R9ZGJ6?
The maximum clock frequency is up to 120 MHz).
- What are the power supply and temperature range specifications?
The power supply range is 1.71 V to 3.6 V, and the temperature range is -40 °C to 85/125 °C).
- What types of communication interfaces does the STM32L4R9ZGJ6 support?
It supports USB OTG 2.0, serial audio interfaces (SAI), I2C, USARTs, SPIs, CAN, and SDMMC).
- What are the key low-power modes of the STM32L4R9ZGJ6?
The key low-power modes include VBAT, Shutdown, Standby, and Stop modes, with current consumptions as low as 33 nA in Shutdown mode and 110 μA/MHz in Run mode).
- Does the STM32L4R9ZGJ6 support external memory interfaces?
Yes, it supports external memory interfaces for static memories such as SRAM, PSRAM, NOR, NAND, and FRAM).
- What are the advanced graphics features of the STM32L4R9ZGJ6?
It includes the Chrom-ART Accelerator (DMA2D) and Chrom-GRC (GFXMMU) for enhanced graphic content creation and optimization, as well as a MIPI® DSI Host controller).
- What development tools and interfaces are available for the STM32L4R9ZGJ6?
It features serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM) for comprehensive development and debugging).
- What types of timers and watchdogs are available on the STM32L4R9ZGJ6?
It includes 16 timers and 2 watchdogs, ensuring robust timing and monitoring capabilities).
- Is the STM32L4R9ZGJ6 suitable for industrial automation applications?
Yes, it is suitable due to its robust timers and communication interfaces, making it ideal for control systems and motor control applications.
