Overview
The STM32L4R9ZIT6 is a member of the STM32L4+ Series of ultra-low-power microcontrollers from STMicroelectronics. This device is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, which includes a single-precision floating-point unit (FPU) and supports all Arm® single-precision data-processing instructions and DSP instructions. The microcontroller operates at a frequency of up to 120 MHz and features an adaptive real-time accelerator (ART Accelerator) for 0-wait-state execution from Flash memory. It is designed for low-power applications, offering various power-saving modes and a wide temperature range of -40 °C to 85/125 °C.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Frequency | Up to 120 MHz |
| Flash Memory | 2 Mbytes, 2 banks read-while-write, proprietary code readout protection |
| SRAM | 640 Kbytes, including 64 Kbytes with hardware parity check |
| 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 85/125 °C |
| Package | LQFP 144 (20x20x1.4 mm) |
| ADC | 12-bit, 5 Msps, up to 16-bit with hardware oversampling |
| DAC | 2 x 12-bit, low-power sample and hold |
| Operational Amplifiers | 2 x with built-in PGA |
| Comparators | 2 x ultra-low-power |
| Communication Interfaces | USB OTG 2.0 full-speed, 4 x I2C, 3 x SPI, 3 x USART, 2 x UART, 1 x CAN, 1 x SDMMC |
| Timers | 2 x 32-bit, 11 x 16-bit, 2 x low-power 16-bit timers |
| 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 |
Key Features
- Ultra-low-power with FlexPowerControl, including multiple power-saving modes such as Shutdown, Standby, and Stop modes.
- Batch acquisition mode (BAM) and support for independent power supplies for various peripherals.
- Advanced graphics features including Chrom-ART Accelerator (DMA2D) and MIPI DSI Host controller.
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, operational amplifiers, and ultra-low-power comparators.
- Extensive range of communication interfaces such as USB OTG, I2C, SPI, USART, UART, CAN, and SDMMC.
- Internal voltage reference buffer, low-power RTC, and multiple timers for various applications.
- Support for capacitive sensing channels and touchkey, linear, and rotary touch sensors.
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM).
Applications
- Industrial automation and control systems due to its advanced motor control timers and CAN interface.
- Medical devices requiring low power consumption and high performance, such as portable diagnostic equipment.
- Consumer electronics, including smart home devices and wearables, benefiting from its ultra-low-power modes and rich peripherals.
- Automotive systems, leveraging its robust communication interfaces and ability to operate in a wide temperature range.
- IoT devices, where low power consumption and advanced graphics capabilities are crucial.
Q & A
- What is the core architecture of the STM32L4R9ZIT6?
The STM32L4R9ZIT6 is based on the Arm® 32-bit Cortex®-M4 CPU with a single-precision floating-point unit (FPU).
- What is the maximum operating frequency of the STM32L4R9ZIT6?
The maximum operating frequency is up to 120 MHz.
- How much Flash and SRAM memory does the STM32L4R9ZIT6 have?
The device has 2 Mbytes of Flash memory and 640 Kbytes of SRAM.
- What is the power supply range for the STM32L4R9ZIT6?
The power supply range is from 1.71 V to 3.6 V (internal LDO) and 1.05 V to 1.32 V (external SMPS).
- What are the key power-saving modes of the STM32L4R9ZIT6?
The device features Shutdown, Standby, and Stop modes, among others, to minimize power consumption.
- What types of communication interfaces does the STM32L4R9ZIT6 support?
The device supports USB OTG, I2C, SPI, USART, UART, CAN, and SDMMC interfaces.
- Does the STM32L4R9ZIT6 have any advanced graphics capabilities?
Yes, it includes the Chrom-ART Accelerator (DMA2D) and MIPI DSI Host controller for enhanced graphic content creation.
- What is the temperature range for the STM32L4R9ZIT6?
The device operates in the -40 °C to 85/125 °C temperature range.
- Does the STM32L4R9ZIT6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What development tools are available for the STM32L4R9ZIT6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM) for development.
