STM32L011F4P6 - Ultra-Low-Power ARM Cortex-M0+ MCU | STMicroelectronics
MPN: STM32L011F4P6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.33 | $665.00 |
| 1,000 | $1.2 | $1,200.00 |
Drop-in alternatives for STM32L011F4P6 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:
STM32L011F4P6TR
β Drop-Inπ Reference alternative (not in catalog)
STM32L011F3P6
β Drop-Inπ Reference alternative (not in catalog)
STM32L021F4P6
β Drop-Inπ Reference alternative (not in catalog)
STM32L011F4P6 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M0+ |
| Max Clock Speed | 32 MHz |
| Flash Memory | 16 KB |
| SRAM | 2 KB |
| Supply Voltage | 1.8 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| Package | TSSOP-20 (P) |
| ADC Resolution | 12-bit |
| ADC Sample Rate | 1 Msps |
| Communication Interfaces | I2C, SPI, USART |
| Timers | 1x 16-bit, 1x 32-bit |
| GPIO Pins | 16 |
| RTC | Yes |
| Low Power Modes | Sleep, Low-power Run, Stop |
| Stop Mode Current | 0.23 Β΅A (with RTC) |
| RoHS Status | Compliant |
STM32L011F4P6 Pin Configuration
| Pin 1 | VBAT β Battery backup supply for RTC |
| Pin 2 | PC14 β GPIO / OSC32_IN |
| Pin 3 | PC15 β GPIO / OSC32_OUT |
| Pin 4 | NRST β Reset (active low) |
| Pin 5 | VDDA β Analog power supply |
| Pin 6 | PA0 β GPIO / ADC_IN0 |
| Pin 7 | PA1 β GPIO / ADC_IN1 |
| Pin 8 | PA2 β GPIO / USART2_TX |
| Pin 9 | PA3 β GPIO / USART2_RX |
| Pin 10 | PA4 β GPIO / SPI1_NSS |
| Pin 11 | PA5 β GPIO / SPI1_SCK |
| Pin 12 | PA6 β GPIO / SPI1_MISO |
| Pin 13 | PA7 β GPIO / SPI1_MOSI |
| Pin 14 | PB0 β GPIO / ADC_IN8 |
| Pin 15 | PB1 β GPIO / ADC_IN9 |
| Pin 16 | VSS β Ground |
| Pin 17 | VDD β Digital power supply |
| Pin 18 | PA9 β GPIO / USART1_TX |
| Pin 19 | PA10 β GPIO / USART1_RX |
| Pin 20 | PA13 β GPIO / SWDIO |
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
STM32L011F4P6 is suitable for 6 applications: Portable Medical Devices, IoT Sensor Nodes, Industrial Monitoring, Smart Home Devices, Wearable Fitness Trackers, Energy Harvesting Systems.
Portable Medical Devices
The STM32L011F4P6 is ideal for portable medical devices such as glucose meters and pulse oximeters. Its ultra-low-power Stop mode (0.23 Β΅A) extends battery life, while the 12-bit ADC accurately reads sensor signals. The small TSSOP-20 package fits compact designs, and the I2C interface connects to display drivers and memory. In a typical glucose meter, the MCU wakes periodically to take a measurement, processes the data, and displays the result, consuming minimal power between readings. The wide supply voltage (1.8V-3.6V) allows direct coin-cell operation, simplifying the power supply design.
Recommended
IoT Sensor Nodes
For IoT sensor nodes, the STM32L011F4P6 provides the perfect balance of low power and connectivity. Its USART and SPI interfaces enable seamless integration with LoRa, BLE, or Zigbee modules. The MCU can sample environmental sensors (temperature, humidity) using its ADC, process the data, and transmit it wirelessly while spending most of the time in Stop mode. With a supply voltage as low as 1.8V, it can be powered by two AA batteries or an energy harvester. The 16 KB Flash is sufficient for firmware that handles sensor calibration, data logging, and communication protocols. In a typical node, the MCU wakes every minute, reads sensors, and sends data, achieving years of battery life.
Recommended
Industrial Monitoring
In industrial monitoring, the STM32L011F4P6 can be used for condition monitoring and predictive maintenance. Its robust operating temperature range (-40Β°C to +85Β°C) and wide supply voltage make it suitable for harsh environments. The 12-bit ADC with 1 Msps sampling rate captures vibration or current signals for analysis. The USART interface allows connection to industrial fieldbuses like RS-485. The MCU's low power consumption is beneficial for battery-powered wireless sensors that monitor equipment health. In a typical application, the MCU continuously samples a vibration sensor, performs FFT analysis, and sends alerts when anomalies are detected, reducing downtime and maintenance costs.
Recommended
Smart Home Devices
The STM32L011F4P6 is well-suited for smart home devices like smart thermostats, door sensors, and smart plugs. Its low power consumption allows battery-powered operation for years. The GPIO pins can interface with relays, LEDs, and buttons, while the I2C interface connects to temperature sensors and EEPROMs. The RTC enables scheduling and time-stamping events. In a smart thermostat, the MCU reads temperature, compares it to the setpoint, and controls the HVAC system via a relay. The device can enter Stop mode between readings, waking every second to check for changes, ensuring minimal energy usage. The small package and low cost make it ideal for mass-produced consumer devices.
Recommended
Wearable Fitness Trackers
The STM32L011F4P6 is perfect for wearable fitness trackers due to its ultra-low power and small size. It can process data from accelerometers and heart rate sensors, and communicate with a smartphone via BLE. The MCU's 12-bit ADC reads analog sensor outputs, while the SPI interface connects to flash memory for data logging. With a typical current consumption of 0.23 Β΅A in Stop mode, the device can last months on a small coin cell. In a fitness tracker, the MCU collects step counts, calculates calories, and transmits data to a phone app. The TSSOP-20 package allows a slim form factor, and the wide supply voltage range accommodates battery voltage variations.
Recommended
Energy Harvesting Systems
The STM32L011F4P6 is an excellent choice for energy harvesting systems, where power is scarce. Its ultra-low-power modes and wide supply voltage (1.8V-3.6V) allow it to operate directly from solar cells or thermoelectric generators. The MCU can wake up periodically to take measurements and transmit data, consuming minimal energy. In a typical energy harvesting node, a solar panel charges a supercapacitor, and the MCU runs only when sufficient energy is available. The 16 KB Flash stores calibration data and firmware, while the ADC monitors the energy storage level. This enables self-powered sensors for remote monitoring applications, eliminating the need for battery replacement.
Recommended
Recommended Products Summary
Engineering reference data for STM32L011F4P6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32L011F4P6TR | STM32L011F3P6 | STM32L021F4P6 | STM32L031F4P6 |
|---|---|---|---|---|---|
| Package | TSSOP-20 (P) | TSSOP-20 (P) - same | TSSOP-20 (P) - same | TSSOP-20 (P) - same | LQFP-32 - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Flash Memory | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 8 KB |
| Max Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Stop Mode Current | 0.23 Β΅A | 0.23 Β΅A | 0.23 Β΅A | 0.23 Β΅A | 0.29 Β΅A |
| GPIO Pins | 16 | 16 | 16 | 16 | 28 |
| Pin Compatibility | Reference | Yes | Yes | Yes | No |
Key Differentiators
- Ultra-low Stop mode current of 0.23 Β΅A (vs STM32L031F4P6)
- Small TSSOP-20 package (vs STM32L031F4P6)
- Pin-compatible with STM32L021F4P6 (vs STM32L021F4P6)
Design Notes
Decouple the VDD and VDDA pins with 100 nF ceramic capacitors placed as close to the pins as possible. Additionally, place a 1 Β΅F capacitor on VDDA for analog noise filtering. For battery-powered designs, consider using the VBAT pin for RTC backup with a separate coin cell to maintain timekeeping when the main supply is removed.
For optimal EMC performance, use a solid ground plane and keep the crystal oscillator components (if used) close to the OSC pins. Route the SWD lines (PA13/PA14) with controlled impedance if high-speed debugging is required. The TSSOP-20 package has a 0.65 mm pitch, so ensure adequate solder mask clearance for reliable soldering.
When using the internal RC oscillator, be aware of its accuracy (Β±1% typical). For applications requiring precise timing, use an external crystal. Also, ensure the NRST pin is properly pulled up with a 100 nF capacitor to ground to prevent spurious resets. Do not leave unused GPIO pins floating; configure them as outputs or enable internal pull-ups to reduce leakage current.
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified (not an automotive-grade part).
