STMicroelectronics STM32L011F3P6

Overview

STM32L011F3P6 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 1.65–3.6 V across –40 to +125 °C and targets battery-powered sensor nodes and smart meters requiring sub-1 µA standby current.

For engineers reviewing the STM32L011F3P6 datasheet, STM32L011F3P6 pinout, STM32L011F3P6 application, or STM32L011F3P6 equivalent, key selection criteria include verified 0.23 µA Standby mode (2 wakeup pins), 5 µs Flash wakeup time, 23 5V-tolerant I/Os, and integrated RTC with 2 KB RAM retention in Stop mode.

Technical Context

The STM32L011F3P6 implements a single-core Arm Cortex-M0+ running at up to 32 MHz with 0.95 DMIPS/MHz performance and dynamic voltage scaling. Its power architecture integrates five low-power modes-Run, Sleep, Low-power Run, Low-power Sleep, Stop, and Standby-with dedicated regulators and brownout reset (BOR) thresholds selectable across five levels.

Clock management includes multiple internal sources (HSI16 ±1%, LSI 37 kHz, MSI 65 kHz–4.2 MHz) plus external 0–32 MHz crystal and 32 kHz RTC oscillator with calibration. The interconnect matrix routes peripherals-including USART, LPUART, SPI, I²C, seven timers, and DMA-to the CPU without bus contention.

Key Specifications

Pinout & Package

The STM32L011F3P6 is housed in a 20-lead TSSOP package (6.5 × 4.4 mm, 0.65 mm pitch), RoHS-compliant and ECOPACK®2 certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L011K3U6, the F3P6 trades pin count and peripheral expansion for compact TSSOP20 assembly; versus STM32L031F3P6, it adds EEPROM and 8 KB more Flash at identical power and package-making it optimal for firmware-updatable, parameter-rich edge devices.

Availability

STM32L011F3P6 is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor nodes, portable medical devices, and asset tracking tags requiring stable component supply over extended production lifecycles.

Supply support for STM32L011F3P6 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, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32L0 series is designed for ultra-low-power embedded applications demanding multi-year battery life, robust memory integrity, and seamless integration of analog and communication peripherals in space-constrained designs.

FAQ

What is the maximum operating frequency and core type of the STM32L011F3P6?

The STM32L011F3P6 features an Arm Cortex-M0+ core rated for up to 32 MHz operation. It delivers 0.95 DMIPS/MHz performance with dynamic voltage scaling support. The core includes a single-cycle multiplier, nested vectored interrupt controller (NVIC), and supports Thumb-2 instruction set for efficient code density and real-time responsiveness.

Does the STM32L011F3P6 support hardware error correction for memory?

Yes, the STM32L011F3P6 implements hardware ECC (Error Correction Code) on both its 16 KB Flash memory and 512 B data EEPROM. This protects against single-bit errors and detects double-bit errors, ensuring firmware integrity and reliable non-volatile data storage in electrically noisy or radiation-prone environments.

How many I/O pins are 5V tolerant, and which packages support them?

The STM32L011F3P6 provides 23 5V-tolerant I/Os across all package variants, including the TSSOP20. These pins accept input voltages up to 5.5 V while operating from a 1.65–3.6 V supply, enabling direct interfacing with legacy 5V logic, sensors, and displays without external level-shifting circuitry.

Can the STM32L011F3P6 operate from a 32.768 kHz crystal for RTC and system clock?

Yes-the device integrates a dedicated 32 kHz low-speed external (LSE) oscillator circuit supporting standard quartz crystals for RTC operation. While the LSE cannot drive the main CPU clock directly, it feeds the RTC and can calibrate the internal MSI oscillator for improved accuracy in low-power modes where high-frequency clocks are disabled.