STM32L031G6U7
STM32L031G6U7 - 32MHz Cortex-M0+ MCU | STMicroelectronics
The STMicroelectronics STM32L031G6U7 is an ultra-low-power 32-bit Arm Cortex-M0+ microcontroller operating at 32 MHz, with 32 KB of Flash memory and 8 KB of SRAM in a 28-pin UFQFPN 4 x 4 mm package. The device provides 21 I/O pins and supports I2C, SPI, UART/USART, ADC, PWM, LIN, and other embedded-control resources, making it suitable for compact industrial, sensor, motor-control, and connected-node designs.
An ultra-low-power microcontroller is a semiconductor device optimized to execute control logic while minimizing energy consumed during idle, sleep, and low-activity operating states. The STM32L031 belongs to the STM32L0 access-line hierarchy: Arm Cortex-M0+ microcontroller, 32-bit embedded MCU, and low-power MCU for battery-operated and always-connected systems. Its compact package supports space-constrained assemblies without requiring a larger leaded or high-pin-count footprint.
Key verified features include a 32-bit Arm Cortex-M0+ core operating at 32 MHz, 32 KB of Flash, and 8 KB of SRAM. The available interface set includes I2C, SPI, UART/USART, ADC, PWM, and LIN, while the Octopart comparison data identifies 21 I/O pins. These resources are balanced for low-cost control nodes that need multiple serial interfaces, mixed signal acquisition, and precise timing without the memory or processing demand of a higher-end MCU.
The STM32L031 architecture combines a 32-bit RISC core with an integrated peripheral set intended for embedded control. Firmware can use serial connectivity for sensors and actuators, ADC channels for analog measurements, timers for PWM generation, and LIN for distributed vehicle or industrial nodes. Exact electrical limits, memory-map details, clock-tree settings, and peripheral operating characteristics should be confirmed against the official STM32L031G6 datasheet before a production design is released.
Typical uses include compact sensor nodes, industrial condition-monitoring equipment, small motor-control loops, LIN-connected control modules, and low-power IoT peripherals. The 28-pin UFQFPN package also suits boards where component area is constrained but enough parallel and serial I/O is needed. The 32 MHz Cortex-M0+ core provides additional timing headroom compared with slower entry-level microcontrollers without moving to a more complex high-end device family.
Designers should allocate decoupling capacitors, route sensitive analog and communication signals away from switching nodes, and validate the exposed-pad thermal path on the PCB. Firmware and peripheral assignments must also be reviewed against the exact UFQFPN pin map and package variant. A replacement is not automatically production-equivalent merely because it uses a 28-pin UFQFPN package; memory capacity, temperature grade, peripheral availability, and electrical ratings must be checked.
This page consolidates verified manufacturer and distributor information, package and memory details, pricing observed as of 2026-10-30, same-brand drop-in candidates, and practical design guidance. It also distinguishes verified substitutions from general cross-reference tools, helping engineers evaluate PCB fit, firmware assumptions, and specification differences before committing a replacement to production.
詢價
聯絡我們
