STMicroelectronics STM32L010K8T6

Overview

STM32L010K8T6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller in LQFP32 package, featuring 64-Kbyte Flash, 8-Kbyte SRAM, 256-byte EEPROM, 12-bit ADC (1.14 Msps), and integrated RTC with 0.8 µA Stop mode + RTC + RAM retention. It targets battery-powered sensor nodes and smart meters requiring long runtime and fast wakeup (5 µs from Flash).

For engineers reviewing the STM32L010K8T6 datasheet, STM32L010K8T6 pinout, STM32L010K8T6 application, or STM32L010K8T6 equivalent, key selection criteria include ultra-low-power Stop/Standby current, 32 MHz max CPU frequency with 0.95 DMIPS/MHz, 45 5-V-tolerant I/Os, and dual UART support including LPUART for always-on communication.

Technical Context

The STM32L010K8T6 integrates a Cortex-M0+ core with dynamic voltage scaling across three operating ranges (1.8–3.6 V), enabling optimized power/performance trade-offs. Its clock system includes factory-trimmed 16 MHz HSI (±1%), 32 kHz LSE for RTC calibration, and PLL for CPU clock generation up to 32 MHz.

Low-power operation is enabled by five modes: Run (88 µA/MHz), Sleep, Low-power Run, Stop (0.4 µA with 16 wakeup lines), and Standby (0.27 µA with 2 wakeup pins). The device supports serial wire debug (SW-DP) and pre-programmed USART/SPI bootloader for field firmware updates.

Key Specifications

Pinout & Package

LQFP32 package (7 × 7 mm, 0.8 mm pitch), RoHS-compliant and ECOPACK2 certified, suitable for space-constrained PCB layouts in portable and industrial edge devices.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L010K8T6, STM32L031K6T6 offers identical packaging and peripherals at lower Flash density and cost, while EFM32ZG222F32 trades integration (no RTC/EEPROM) for marginally lower deep-sleep current - making STM32L010K8T6 optimal for self-contained, time-aware, field-deployable systems.

Availability

STM32L010K8T6 is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor nodes, portable medical devices, and industrial control panels requiring stable component supply and long-term manufacturability.

Supply support for STM32L010K8T6 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 products for industrial, automotive, and consumer markets.

The STM32L0 Value line targets cost-sensitive, ultra-low-power applications with integrated peripherals and robust toolchain support - specifically engineered for battery-operated IoT endpoints and energy-harvesting systems.

FAQ

What is the maximum operating frequency and associated power consumption of the STM32L010K8T6?

The STM32L010K8T6 operates up to 32 MHz using its PLL or HSI16 clock source. At 32 MHz in Run mode with code executed from Flash, typical current consumption is 120 µA at 3.0 V (88 µA/MHz), verified per DS12325 Rev 3 Table 19. Dynamic voltage scaling allows lower VDD in reduced-frequency modes to further minimize power.

Does the STM32L010K8T6 support hardware encryption or secure boot features?

No, the STM32L010K8T6 does not include hardware cryptographic accelerators (AES, SHA, PKA) or secure boot circuitry. It relies on software-based security measures and external secure elements. For secure firmware updates, developers must implement authenticated bootloader logic in Flash using the 96-bit unique ID and CRC calculation unit.

Can the 256-byte EEPROM be used for storing calibration data across power cycles?

Yes, the integrated 256-byte data EEPROM supports byte/word erase and write operations with 100,000 endurance cycles and 20-year data retention at 55 °C (DS12325 Rev 3 Table 42). It is accessed via dedicated HAL drivers and retains values through all power modes except VDD removal without backup supply.

How many I/O pins support 5-V tolerance, and which ones are excluded?

45 I/O pins (all GPIOs except BOOT0 and NRST) are 5-V tolerant when configured in input, output, or alternate function mode (DS12325 Rev 3 Section 3.7). BOOT0 and NRST are not 5-V tolerant and must be driven within VDD ±0.3 V to avoid damage or undefined behavior.