STMicroelectronics STM32L4R5AII6
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $36.30 | $36.30 |
| 15+ | $8.35 | $125.25 |
| 25+ | $8.17 | $204.25 |
| 50+ | $7.72 | $386.00 |
| 100+ | $6.81 | $681.00 |
| N+ | $1.36 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Tray | NULL |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 120MHz |
| Connectivity | CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Number of I/O | 112 |
| Program Memory Size | 2MB (2M x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 640K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| Data Converters | A/D 16x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 169-UFBGA (7x7) |
| Package / Case | 169-UFBGA |
| ROHS |
The STM32L4R5AII6 from STMicroelectronics is a high-performance ultra-low-power 32-bit microcontroller based on the ARM Cortex-M4 core with FPU. It runs at 120MHz and features 2MB of flash memory and 640KB of SRAM. Operating from 1.71V to 3.6V, it integrates a TFT-LCD controller, 24-bit ADC, DAC, comparators, and advanced low-power modes. Packaged in a 169-UFBGA, this MCU is designed for demanding applications in wearables, smart home, industrial IoT, and medical devices where performance and energy efficiency are critical.
- Ultra-low power consumption: 100nA shutdown mode and dynamic voltage scaling extend battery life in portable devices.
- High memory capacity: 2MB flash and 640KB SRAM support complex applications and over-the-air updates.
- Advanced graphics support: Built-in TFT-LCD controller and Chrom-ART accelerator enable rich user interfaces without external GPU.
- Rich analog integration: 24-bit ADC and DAC reduce external components for high-precision sensing.
High-End Wearable Devices
The ultra-low-power design (down to 100nA in shutdown) combined with 120MHz performance allows complex health monitoring algorithms to run on a coin-cell battery.
Smart Home Hubs
With 2MB flash and 640KB RAM, it can handle multiple communication protocols (BLE, Zigbee, Thread) simultaneously, while the LCD controller drives a touchscreen interface.
Industrial IoT Gateways
The rich analog peripherals (24-bit ADC, DAC, comparators) and DMA enable high-precision sensor data acquisition, while the Cortex-M4 FPU processes signals locally.
Portable Medical Imaging
Its high-speed ADC and DSP capabilities support ultrasound and OCT signal processing, while the low-power modes preserve battery life during field use.
Energy Harvesting Systems
The 1.71V minimum supply voltage allows direct operation from a single solar cell or TEG, with the brown-out detector ensuring stable startup.
Advanced Robotics Controllers
Multiple timers with PWM, quadrature encoder interfaces, and CAN FD support precise motor control and sensor fusion in autonomous robots.
- Q: What is the core architecture?
- A: It uses an ARM Cortex-M4 with FPU, running at up to 120MHz for efficient DSP and floating-point operations.
- Q: How much memory is available?
- A: It offers 2MB of flash and 640KB of SRAM, enabling large application code and data buffering.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V, supporting battery-powered and energy-harvesting designs.
- Q: Does it support graphics?
- A: Yes, it includes a TFT-LCD controller and Chrom-ART accelerator for GUI applications.
- Q: What is the core architecture?
- A: It uses an ARM Cortex-M4 with FPU, running at up to 120MHz for efficient DSP and floating-point operations.
- Q: How much memory is available?
- A: It offers 2MB of flash and 640KB of SRAM, enabling large application code and data buffering.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V, supporting battery-powered and energy-harvesting designs.
- Q: Does it support graphics?
- A: Yes, it includes a TFT-LCD controller and Chrom-ART accelerator for GUI applications.

STM32L4R5AII6.pdf