STM32L486RGT6 - ARM Cortex-M4F 80MHz MCU | STMicroelectronics
MPN: STM32L486RGT6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.5 | $8,500.00 |
Drop-in alternatives for STM32L486RGT6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32L476RGT6
β Drop-Inπ Reference alternative (not in catalog)
STM32L496RGT6
β Drop-Inπ Reference alternative (not in catalog)
STM32L486RGT7
β Drop-Inπ Reference alternative (not in catalog)
STM32L4R5RGT6
β Drop-Inπ Reference alternative (not in catalog)
STM32L486RGT6 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M4F with FPU |
| Maximum Clock Frequency | 80 MHz |
| Flash Memory | 1 Mbyte |
| SRAM | 128 Kbytes |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Operating Temperature Range | -40C to +85C |
| Package | LQFP-64 |
| Mounting Type | Surface Mount |
| Number of I/O Pins | 51 |
| ADC Resolution | 12-bit |
| ADC Sample Rate | 5 Msps |
| DAC Resolution | 12-bit |
| Communication Interfaces | USART, SPI, I2C, USB OTG FS, CAN, SDMMC |
| Security Features | AES, DES, 3DES, TRNG |
| RoHS Status | Compliant |
STM32L486RGT6 Pin Configuration
| Pin 1 | VBAT β Battery backup supply for RTC and backup registers |
| Pin 2 | PC13 β GPIO, tamper, RTC output |
| Pin 3 | PC14 β GPIO, OSC32_IN |
| Pin 4 | PC15 β GPIO, OSC32_OUT |
| Pin 5 | PF0 β GPIO, OSC_IN |
| Pin 6 | PF1 β GPIO, OSC_OUT |
| Pin 7 | NRST β Reset (active low) |
| Pin 8 | VSSA β Analog ground |
| Pin 9 | VDDA β Analog power supply |
| Pin 10 | PA0 β GPIO, ADC, DAC, TIM2_CH1 |
| Pin 11 | PA1 β GPIO, ADC, DAC, TIM2_CH2 |
| Pin 12 | PA2 β GPIO, ADC, USART2_TX, TIM2_CH3 |
| Pin 13 | PA3 β GPIO, ADC, USART2_RX, TIM2_CH4 |
| Pin 14 | VSS β Ground |
| Pin 15 | VDD β Power supply |
| Pin 16 | PA4 β GPIO, DAC, SPI1_NSS |
| Pin 17 | PA5 β GPIO, DAC, SPI1_SCK |
| Pin 18 | PA6 β GPIO, SPI1_MISO, TIM3_CH1 |
| Pin 19 | PA7 β GPIO, SPI1_MOSI, TIM3_CH2 |
| Pin 20 | PC4 β GPIO, ADC, I2S1_MCK |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
STM32L486RGT6 is suitable for 6 applications: IoT Edge Nodes, Wearable Fitness Trackers, Smart Meters, Medical Devices, Industrial Sensors, Audio Processing.
IoT Edge Nodes
The STM32L486RGT6 is ideal for IoT edge nodes that require low power consumption, secure communication, and sensor data processing. Its ultra-low-power modes (down to 100 nA in shutdown) extend battery life, while the hardware crypto accelerator (AES, DES, 3DES) ensures secure data transmission. The 80 MHz Cortex-M4F core with FPU handles sensor fusion algorithms efficiently. In a typical IoT node, the MCU interfaces with sensors via I2C or SPI, processes data locally, and communicates via Wi-Fi or LoRa modules using USART or SPI. The 12-bit ADC at 5 Msps captures high-resolution sensor readings, and the multiple timers generate precise sampling intervals. Power consumption is optimized by using Stop mode between measurements, waking up on external interrupts. Compared to higher-performance MCUs, the L486 offers a balance of performance and power, making it suitable for battery-powered devices that need to operate for years on a single coin cell.
Recommended
Wearable Fitness Trackers
The STM32L486RGT6 is well-suited for wearable fitness trackers due to its ultra-low-power operation and integrated security features. The MCU can run heart rate monitoring algorithms using the Cortex-M4F FPU, while the 12-bit ADC samples photoplethysmography (PPG) sensors. The device's small LQFP-64 package and wide supply voltage range (1.71V-3.6V) allow direct connection to a Li-Po battery. In a typical tracker, the MCU collects accelerometer and heart rate data, processes steps and calories, and communicates via Bluetooth Low Energy (BLE) using a separate module. The low-power modes enable the device to run for weeks on a small battery. The hardware crypto accelerator secures user data, and the TRNG generates unique identifiers for authentication. Compared to using a separate MCU and security chip, the L486 integrates both, reducing BOM cost and board space.
Recommended
Smart Meters
The STM32L486RGT6 is an excellent choice for smart meters (electricity, water, gas) due to its low power consumption, security features, and multiple communication interfaces. The MCU can measure energy consumption using the 12-bit ADC and compute billing data with the FPU. The hardware crypto accelerator ensures secure communication with the utility provider, and the TRNG generates encryption keys. In a smart meter, the MCU reads current and voltage sensors, calculates power, and periodically transmits data via PLC (power line communication) or RF modules. The low-power modes allow the meter to operate on a battery for years, especially in gas and water meters. The wide operating temperature range (-40C to +85C) ensures reliable operation in outdoor environments. Compared to other MCUs, the L486 offers a unique combination of low power, security, and analog integration, making it a cost-effective solution for smart metering.
Recommended
Medical Devices
The STM32L486RGT6 is suitable for portable medical devices such as glucose monitors, pulse oximeters, and drug delivery pumps. Its ultra-low-power operation extends battery life, and the security features protect patient data. The 12-bit ADC with 5 Msps sample rate captures high-resolution biosignals, while the op-amps and comparators condition sensor signals without external components. In a glucose monitor, the MCU reads the sensor current, converts it to glucose concentration, and displays the result on an LCD. The device can store historical data in Flash and communicate via USB or BLE. The hardware crypto accelerator ensures secure data transfer to a smartphone app. The MCU's small package and low power consumption enable compact, wearable designs. Compared to using a general-purpose MCU, the L486's integrated analog and security features reduce component count and design complexity.
Recommended
Industrial Sensors
The STM32L486RGT6 is ideal for industrial sensors that require reliable operation in harsh environments, low power consumption, and secure communication. The MCU's wide temperature range (-40C to +85C) and robust design make it suitable for factory automation and process control. The 12-bit ADC and multiple timers enable precise sensor data acquisition and control. In a typical industrial sensor, the MCU reads temperature, pressure, or flow sensors, processes the data, and transmits it via CAN or RS-485. The hardware crypto accelerator secures communication in critical infrastructure. The low-power modes allow battery-powered wireless sensors to operate for years. Compared to other MCUs, the L486 offers a good balance of performance, power, and security, making it a versatile choice for industrial IoT applications.
Recommended
Audio Processing
The STM32L486RGT6 can be used for audio processing applications such as voice-controlled devices, audio recorders, and active noise cancellation. The Cortex-M4F core with FPU and DSP instructions enables real-time audio algorithms like filtering and FFT. The 12-bit DAC can output analog audio, and the I2S interface connects to external audio codecs. In a voice-controlled device, the MCU captures audio via a microphone, performs keyword spotting, and communicates with a cloud service via Wi-Fi. The low-power modes allow always-on listening with minimal power consumption. The hardware crypto accelerator secures voice data transmission. Compared to using a dedicated DSP, the L486 integrates the core, memory, and peripherals, reducing cost and complexity. The 80 MHz clock is sufficient for many audio applications, though more demanding tasks may require a higher-performance MCU.
Recommended
Recommended Products Summary
Engineering reference data for STM32L486RGT6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32L476RGT6 | STM32L496RGT6 | STM32L486RGT7 | STM32L4R5RGT6 | LPC54608J512BD208 |
|---|---|---|---|---|---|---|
| Package | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-208 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Core | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F |
| Max Clock Frequency | 80 MHz | 80 MHz | 120 MHz | 80 MHz | 120 MHz | 180 MHz |
| Flash Memory | 1 Mbyte | 1 Mbyte | 1 Mbyte | 1 Mbyte | 1 Mbyte | 512 Kbytes |
| SRAM | 128 Kbytes | 128 Kbytes | 320 Kbytes | 128 Kbytes | 640 Kbytes | 200 Kbytes |
| Hardware Crypto | Yes (AES, DES, 3DES) | No | Yes (AES, DES, 3DES) | Yes (AES, DES, 3DES) | Yes (AES, DES, 3DES) | Yes (AES) |
| Supply Voltage Range | 1.71V - 3.6V | 1.71V - 3.6V | 1.71V - 3.6V | 1.71V - 3.6V | 1.71V - 3.6V | 1.71V - 3.6V |
Key Differentiators
- Integrated hardware crypto accelerator (AES, DES, 3DES) and TRNG (vs STM32L476RGT6)
- Ultra-low-power modes with 100 nA shutdown current (vs STM32L496RGT6)
- Pin-compatible with STM32L4 family (L476, L496, L4R5) (vs LPC54608J512BD208)
Design Notes
For ultra-low-power operation, use the appropriate low-power mode. In Stop 2 mode, the MCU consumes about 1.1 uA with RTC running. Ensure that all unused GPIOs are configured as analog or pull-down to avoid floating inputs that increase leakage. Use the internal LDO in low-power mode for optimal efficiency.
Place a 100 nF decoupling capacitor close to each VDD pin and a 4.7 uF bulk capacitor on the main supply. For the VDDA pin, use a 1 uF capacitor and a ferrite bead to isolate analog noise. Keep the ground plane continuous under the MCU to minimize EMI.
When using the ADC, ensure the sampling time is sufficient for the source impedance. For high-impedance sensors, add a buffer amplifier or increase sampling time. Also, avoid exceeding the absolute maximum ratings on any pin, especially during power-up and power-down sequences.
Compliance Information
RoHS and REACH compliant per STMicroelectronics product page. Not AEC-Q100 qualified (not intended for automotive).
