Overview
The STM32L4R9ZIJ6 is a part 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, 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.
The STM32L4R9ZIJ6 is designed for low-power applications, offering various power-saving modes such as Shutdown, Standby, and Stop modes, with current consumption as low as 33 nA in Shutdown mode and 2.8 µA in Stop 2 mode with RTC. It also includes a comprehensive set of peripherals and interfaces, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, 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 °C / +125 °C |
| Timers | 16x timers: 2 x 16-bit advanced motor-control, 2 x 32-bit, 5 x 16-bit general purpose, 2x 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 |
| Communication Interfaces | 4x I2Cs, 3x SPIs, 3x USARTs, 2x UARTs, 1x low-power UART, 2x SAIs, 1x SDMMC, 1x CAN, 1x USB OTG full-speed |
| Analog Peripherals | 12-bit ADC (5 Msps), 2x 12-bit DAC, 2x operational amplifiers, 2x ultra-low-power comparators |
| Package | UFBGA 144 10x10x0.6 P 0.8 mm, LQFP 144 20x20x1.4 mm, WLCSP 144 5.3x5.3x0.6 P 0.4 mm |
Key Features
- Ultra-low-power with FlexPowerControl, including Shutdown, Standby, and Stop modes with low current consumption (e.g., 33 nA in Shutdown mode, 2.8 µA in Stop 2 mode with RTC)
- Batch acquisition mode (BAM) and support for independent power supplies for analog peripherals
- Advanced graphics features: Chrom-ART Accelerator (DMA2D), Chrom-GRC (GFXMMU), MIPI® DSI Host controller with two DSI lanes running at up to 500 Mbits/s each, and LCD-TFT controller
- Rich set of timers: 2 x 16-bit advanced motor-control, 2 x 32-bit, 5 x 16-bit general purpose, 2x low-power 16-bit timers available in Stop mode
- Up to 24 capacitive sensing channels supporting touchkey, linear, and rotary touch sensors
- Comprehensive communication interfaces: USB OTG full-speed, CAN, SDMMC, multiple I2Cs, SPIs, USARTs, and UARTs
- Encryption hardware accelerator: AES (128/256-bit key), HASH (SHA-256)
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell (ETM)
Applications
- Industrial automation and control systems
- Medical devices requiring low power consumption and advanced peripherals
- Consumer electronics such as smart home devices and wearables
- Automotive systems, including infotainment and driver assistance
- IoT devices and smart sensors
- Energy-efficient solutions in various sectors
Q & A
- What is the core architecture of the STM32L4R9ZIJ6?
The STM32L4R9ZIJ6 is based on the Arm® 32-bit Cortex®-M4 CPU with a single-precision floating-point unit (FPU) and supports DSP instructions.
- What is the power supply range for the STM32L4R9ZIJ6?
The power supply range is 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 STM32L4R9ZIJ6?
The key power-saving modes include Shutdown, Standby, and Stop modes, with current consumption as low as 33 nA in Shutdown mode and 2.8 µA in Stop 2 mode with RTC.
- What types of memory does the STM32L4R9ZIJ6 have?
The device features 2 Mbytes of Flash memory and 640 Kbytes of SRAM, including 64 Kbytes with hardware parity check.
- What are the advanced graphics features of the STM32L4R9ZIJ6?
The device includes a Chrom-ART Accelerator (DMA2D), Chrom-GRC (GFXMMU), and a MIPI® DSI Host controller with two DSI lanes running at up to 500 Mbits/s each, along with an LCD-TFT controller.
- What communication interfaces are available on the STM32L4R9ZIJ6?
The device supports multiple communication interfaces including USB OTG full-speed, CAN, SDMMC, I2Cs, SPIs, USARTs, and UARTs.
- Does the STM32L4R9ZIJ6 support encryption?
Yes, it includes an encryption hardware accelerator for AES (128/256-bit key) and HASH (SHA-256).
- What development tools are supported by the STM32L4R9ZIJ6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM) for development.
- What is the temperature range for the STM32L4R9ZIJ6?
The operating temperature range is from -40 °C to +85 °C / +125 °C.
- What types of analog peripherals are available on the STM32L4R9ZIJ6?
The device includes a 12-bit ADC (5 Msps), 2x 12-bit DAC, 2x operational amplifiers, and 2x ultra-low-power comparators.
