STMicroelectronics STM32L4R5AII6P
| 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, (External SMPS Required) |
| 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 STM32L4R5AII6P is a variant of the STM32L4R5 series from STMicroelectronics, featuring an ARM Cortex-M4 core at 120MHz, 2MB flash, and 640KB SRAM. It operates from 1.71V to 3.6V and requires an external SMPS for core power, which enhances overall power efficiency. This MCU includes a TFT-LCD controller, 24-bit ADC, and advanced low-power modes. Packaged in 169-UFBGA, it is optimized for energy-sensitive applications such as industrial sensors, smart meters, and portable medical devices.
- External SMPS support: Achieves up to 90% power conversion efficiency, reducing heat and extending battery life.
- High-performance core: 120MHz Cortex-M4 with FPU accelerates complex calculations.
- Large memory footprint: 2MB flash and 640KB SRAM enable feature-rich firmware.
- Comprehensive peripheral set: Includes LCD controller, 24-bit ADC, and multiple communication interfaces.
Battery-Powered Industrial Sensors
The external SMPS option allows the MCU to operate at higher efficiency from a 3.6V battery, extending field deployment time in wireless sensor networks.
Smart Grid Meters
With 2MB flash for complex metering algorithms and 640KB RAM for data logging, it can handle multi-tariff calculations and secure communication via AES.
Portable Test Equipment
The high-speed ADC and DSP capabilities enable oscilloscope-like measurements, while the low-power modes allow long standby between measurements.
Medical Wearable Monitors
Its ultra-low-power design and external SMPS support continuous ECG/EEG monitoring for days on a small battery, with the Cortex-M4 handling real-time signal analysis.
Smart Agriculture Nodes
Operating from solar-charged batteries, the MCU processes soil moisture and weather data, using its LCD controller for local display and wireless modules for remote reporting.
High-Performance Audio Devices
The 120MHz core and large RAM support audio codec processing and effects, while the SMPS reduces heat generation in compact enclosures.
- Q: How does this differ from the standard STM32L4R5AII6?
- A: The 'P' suffix indicates that an external SMPS (Switched-Mode Power Supply) is required for core power, enabling higher efficiency.
- Q: What is the core speed?
- A: It runs at 120MHz with an ARM Cortex-M4 FPU, providing strong DSP performance.
- Q: What memory is available?
- A: It includes 2MB flash and 640KB SRAM, suitable for large applications.
- Q: What is the voltage range?
- A: It operates from 1.71V to 3.6V, with the external SMPS improving power conversion efficiency.
- Q: How does this differ from the standard STM32L4R5AII6?
- A: The 'P' suffix indicates that an external SMPS (Switched-Mode Power Supply) is required for core power, enabling higher efficiency.
- Q: What is the core speed?
- A: It runs at 120MHz with an ARM Cortex-M4 FPU, providing strong DSP performance.
- Q: What memory is available?
- A: It includes 2MB flash and 640KB SRAM, suitable for large applications.
- Q: What is the voltage range?
- A: It operates from 1.71V to 3.6V, with the external SMPS improving power conversion efficiency.

STM32L4R5AII6P.pdf