Overview
The STM32L4R9ZGT6 is a member of the STM32L4+ Series, a family of ultra-low-power microcontrollers from STMicroelectronics. These devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at frequencies up to 120 MHz. The Cortex-M4 core includes a single-precision floating-point unit (FPU), digital signal processing (DSP) instructions, and a memory protection unit (MPU) for enhanced security. The STM32L4R9ZGT6 is designed for low-power applications, offering a comprehensive set of power-saving modes and advanced peripherals.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator) |
| Frequency | Up to 120 MHz |
| Memory | 2 Mbytes of Flash memory, 640 Kbytes of SRAM |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to +85 °C / +125 °C |
| Package | LQFP144 |
| Timers | 2 x 32-bit, 11 x 16-bit general purpose, 2 x 16-bit advanced motor-control |
| Communication Interfaces | USB OTG 2.0 full-speed, 4 x I2C, 3 x SPI, 3 x USART, 2 x UART, 1 x CAN 2.0B |
| Analog Peripherals | 12-bit ADC (5 Msps), 2 x 12-bit DAC, 2 x operational amplifiers, 2 x ultra-low-power comparators |
| Capacitive Sensing Channels | Up to 24 channels |
| Clock Sources | 4 to 48 MHz crystal oscillator, 32 kHz crystal oscillator for RTC, internal 16 MHz RC, internal low-power 32 kHz RC |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes (VBAT, Shutdown, Standby, Stop 2)
- Advanced graphics features including Chrom-ART Accelerator (DMA2D) and MIPI DSI Host controller
- High-speed memories with 2 Mbytes of Flash and 640 Kbytes of SRAM
- Flexible external memory controller (FSMC) and dual OctoSPI Flash memories interface
- Extensive range of enhanced I/Os and peripherals connected to multiple buses
- Protection mechanisms for embedded Flash and SRAM: readout protection, write protection, proprietary code readout protection, and firewall
- Advanced analog peripherals including 12-bit ADC, 12-bit DAC, operational amplifiers, and ultra-low-power comparators
- Support for capacitive sensing channels and touchkey, linear, and rotary touch sensors
- Comprehensive set of communication interfaces including USB OTG, I2C, SPI, USART, UART, and CAN
Applications
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and wearables
- Automotive systems, especially those requiring low power and high performance
- IoT devices and smart sensors
- Energy-efficient systems and battery-powered devices
Q & A
- What is the core architecture of the STM32L4R9ZGT6?
The STM32L4R9ZGT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a single-precision floating-point unit (FPU) and DSP instructions.
- What is the maximum operating frequency of the STM32L4R9ZGT6?
The maximum operating frequency is up to 120 MHz.
- What are the power supply requirements for the STM32L4R9ZGT6?
The device operates from a 1.71 V to 3.6 V power supply.
- What are the key power-saving modes available on the STM32L4R9ZGT6?
The device features VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode for low-power operation.
- What types of memory does the STM32L4R9ZGT6 have?
The device includes 2 Mbytes of Flash memory and 640 Kbytes of SRAM.
- What are the advanced graphics features of the STM32L4R9ZGT6?
The device includes a Chrom-ART Accelerator (DMA2D) and a MIPI DSI Host controller for enhanced graphic content creation.
- What communication interfaces are available on the STM32L4R9ZGT6?
The device supports USB OTG 2.0 full-speed, I2C, SPI, USART, UART, and CAN 2.0B interfaces.
- What are the analog peripherals available on the STM32L4R9ZGT6?
The device includes a 12-bit ADC, 12-bit DAC, operational amplifiers, and ultra-low-power comparators.
- Does the STM32L4R9ZGT6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What are the typical applications for the STM32L4R9ZGT6?
Typical applications include industrial automation, medical devices, consumer electronics, automotive systems, IoT devices, and energy-efficient systems.
