STMicroelectronics STM32L011F3P6TR

Overview

STM32L011F3P6TR from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller in a TSSOP20 package, featuring 16 KB Flash, 2 KB SRAM, 512 B EEPROM with ECC, 12-bit ADC (1.14 Msps), and dual ultra-low-power comparators. It operates from 1.65 V to 3.6 V across –40 °C to 125 °C and delivers 76 µA/MHz in Run mode - ideal for battery-powered sensor nodes and smart metering endpoints.

For engineers reviewing the STM32L011F3P6TR datasheet, STM32L011F3P6TR pinout, STM32L011F3P6TR application, or STM32L011F3P6TR equivalent, key selection criteria include standby current (0.23 µA), RTC-enabled Stop mode (0.54 µA with 2 KB RAM retention), 5 µs Flash wakeup time, and 23 5V-tolerant I/Os - all critical for energy-constrained embedded designs requiring long-term autonomy and robust peripheral integration.

Technical Context

The STM32L011F3P6TR implements a tightly integrated ultra-low-power architecture: its Cortex-M0+ core runs at up to 32 MHz with 0.95 DMIPS/MHz, supported by multiple clock sources including factory-trimmed 16 MHz HSI (±1%), 32 kHz LSE for RTC calibration, and multispeed MSI (65 kHz–4.2 MHz). Dynamic voltage scaling enables adaptive power management across operating modes.

Its low-power design centers on five hierarchical modes: Run (76 µA/MHz), Sleep (1.8 µA), Low-power Run (12 µA), Stop (0.29–0.54 µA depending on retention), and Standby (0.23 µA with two wakeup pins). Peripheral wakeup capability is distributed across 16 lines and two dedicated comparator outputs, enabling event-driven operation without CPU intervention.

Key Specifications

Pinout & Package

TSSOP20 (20-lead, 6.5 × 4.4 mm, 0.65 mm pitch) - RoHS-compliant, ECOPACK®2 certified, optimized for compact PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.

Compared with STM32L011F3P6TR, the STM32L011K3U6 offers greater I/O density in a larger package, while the STM32L031F3P6 reduces memory and removes EEPROM to lower unit cost - both retain identical ultra-low-power performance and TSSOP20-compatible footprint where applicable.

Availability

STM32L011F3P6TR is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, industrial asset tracking, and medical wearables requiring stable component supply and long-term manufacturability.

Supply support for STM32L011F3P6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32L0 series targets ultra-low-power embedded applications, emphasizing sub-µA standby operation, integrated EEPROM, and robust analog peripherals - engineered specifically for battery longevity and reliability in edge-sensing devices.

FAQ

What is the maximum operating frequency and core type of the STM32L011F3P6TR?

The STM32L011F3P6TR features an Arm Cortex-M0+ core rated for up to 32 MHz operation, delivering 0.95 DMIPS/MHz. Its maximum frequency is constrained by supply voltage: 32 MHz is achievable only above 2.4 V, while dynamic voltage scaling reduces clock speed to 16 MHz or lower at 1.8 V to maintain stability and minimize power consumption.

Does the STM32L011F3P6TR support hardware error correction for memory?

Yes, the STM32L011F3P6TR implements hardware ECC (Error Correction Code) on both its 16 KB Flash memory and 512 B data EEPROM. This enables automatic detection and correction of single-bit errors, significantly improving data integrity in mission-critical applications exposed to radiation, voltage fluctuations, or extended temperature cycling.

How many I/O pins are 5V tolerant, and what is their voltage rating?

23 I/O pins on the STM32L011F3P6TR are 5V tolerant, meaning they safely accept input signals up to 5.5 V regardless of VDD level (1.65–3.6 V). This tolerance applies to all GPIOs except NRST and BOOT0, and eliminates the need for external level shifters when interfacing with standard 5V logic or sensors.

Can the STM32L011F3P6TR operate from a single 1.8 V supply, and what peripherals remain functional?

Yes, the STM32L011F3P6TR operates across 1.65–3.6 V, including 1.8 V. At this voltage, the Cortex-M0+ core runs up to 16 MHz, the 12-bit ADC remains fully functional (down to 1.65 V), both ultra-low-power comparators operate, and the RTC with 2 KB RAM retention functions in Stop mode - all while consuming only 0.54 µA.