STM32L031K6U6 - 32MHz Cortex-M0+ 32KB MCU | STMicroelectronics
料号： STM32L031K6U6 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.6389 | $1.64 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM32L031K6U6 概述
A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, peripherals, and communication interfaces into one embedded-control platform. The STM32L031K6U6 combines an Arm Cortex-M0+ RISC core with low-power design goals, allowing firmware to control sensors, communications, timers, and analog or digital peripherals in compact products.
The principal verified characteristics are a 32 MHz operating frequency, 32-bit architecture, 32 KB flash memory, and a compact 32-pin UFQFPN package. The Arm Cortex-M0+ core provides a straightforward instruction set for embedded applications, while the STM32L0 family positioning emphasizes low power consumption for battery-operated and resource-constrained equipment.
The STM32L031K6 family is associated with the STMicroelectronics STM32L0 ultra-low-power portfolio. Typical embedded uses include low-power sensor nodes, compact control boards, portable instruments, simple communication equipment, and IoT devices where the combination of processing capability, memory, and package size is useful. Exact peripheral availability, electrical limits, memory-map details, and timing parameters should be confirmed in the manufacturer datasheet before final design release.
Designers should preserve the package footprint, pin assignment, supported voltage range, decoupling requirements, clock configuration, and programming interface when creating a PCB. Because the supplied data does not include a full electrical table or complete pinout, unsupported values are marked as needed rather than inferred. This page combines verified distributor identification, manufacturer product information, practical application guidance, and sourcing context.
This product summary distinguishes the STM32L031K6U6 from functionally related STM32 devices by emphasizing the verified combination of Cortex-M0+ architecture, 32 MHz operation, 32 KB flash, and 32-pin UFQFPN packaging. It is a useful starting point for embedded engineers evaluating low-power MCU designs and comparing package-compatible sourcing options.
直接替换替代料： STM32L031K6U6 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
STM32L031K6U6TR
✅ 直接替换📋 参考替代料（不在目录中）
STM32L031G6U7
✅ 直接替换📋 参考替代料（不在目录中）
STM32L031K6U3
✅ 直接替换📋 参考替代料（不在目录中）
STM32L031G6U7
✅ 直接替换📋 参考替代料（不在目录中）
STM32L031K6U6TR
✅ 直接替换📋 参考替代料（不在目录中）
STM32L031K6U6 最大额定值与电气特性
| Product Type | 32-bit ultra-low-power microcontroller |
| CPU Core | Arm Cortex-M0+ |
| Architecture | 32-bit RISC |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 32 KB |
| Flash Organization | 32K x 8 bits |
| 封装 | 32-UFQFPN |
| Package Dimensions | 5 x 5 mm |
| 安装类型 | Surface mount |
| Product Series | STM32L0 |
| Product Positioning | Access line ultra-low-power family |
| Core Frequency | 32 MHz |
STM32L031K6U6 5 x 5 mm 引脚配置指南
STM32L031K6U6（5 x 5 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM32L031K6U6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32L031K6U6 适用于 6 应用s: Battery-Powered Sensor Node, Portable Environmental Monitor, Industrial Condition-Monitoring Terminal, Low-Power IoT Controller, Compact Instrumentation Interface, Smart Home Sensor Gateway.
Battery-Powered Sensor Node
The STM32L031K6U6 fits compact battery-powered sensor nodes because its verified 32 MHz Arm Cortex-M0+ core provides responsive control processing while the STM32L0 family is positioned for ultra-low-power designs. The 32 KB flash can hold application firmware, sensor handling, state management, and communication routines in a small embedded system. The 32-UFQFPN 5 x 5 mm package also helps reduce board area in distributed sensing products. The supplied data does not specify RAM, current consumption, or low-power mode limits, so the design must verify sensor interface requirements, battery capacity, wake-up behavior, and exact operating-mode current before selecting a duty cycle.
推荐
Portable Environmental Monitor
STM32L031K6U6 can serve as the control MCU in a portable environmental monitor that combines a sensor, data filtering, local indication, and low-rate communications. Its verified 32-bit Cortex-M0+ architecture and 32 MHz clock provide a capable platform for sampling loops, threshold logic, calibration tables, and data packaging, while the STM32L031x4/6 family's ultra-low-power positioning supports compact battery-operated equipment. The 32-UFQFPN package is useful when the enclosure is space constrained. Before layout release, confirm the exact ADC, timer, I/O, and supply-voltage requirements from the manufacturer documentation; those specifications are not present in the supplied excerpts.
推荐
Industrial Condition-Monitoring Terminal
The STM32L031K6U6 is appropriate for a small condition-monitoring terminal that reads sensors, evaluates thresholds, records events, and reports status through a local interface. Its 32 MHz Cortex-M0+ core can execute control logic without requiring a high-performance application processor, and the 32 KB flash provides space for firmware and fixed parameters. The compact surface-mount package supports dense control assemblies. A production design should still verify digital I/O count, communication peripherals, ADC performance, memory, and operating-temperature limits against the official datasheet. The verified distributor data confirms the MCU identity and core frequency but does not supply those peripheral details.
推荐
Low-Power IoT Controller
STM32L031K6U6 can be used in a low-power IoT controller when the product needs local logic, event handling, and a compact MCU footprint rather than a high-performance application processor. The verified 32 MHz Cortex-M0+ core and 32 KB flash support embedded firmware, while the STM32L0 family's low-power positioning is relevant to devices that spend substantial time idle. The MCU can coordinate a sensor front end, indicator outputs, and a low-power communications module. Radio choice, protocol stack, RAM requirements, and current-consumption figures are not supplied in the verified data, so engineers should validate the complete power budget and firmware support before committing to the part.
推荐
Compact Instrumentation Interface
The STM32L031K6U6 can act as the local interface controller in compact test or measurement equipment where a front panel, status LEDs, buttons, and a simple sensor or communication path must be coordinated. Its 32-bit Cortex-M0+ architecture and 32 MHz frequency provide enough general-purpose processing for control firmware, while the small 32-UFQFPN package helps minimize board footprint. The part can manage low-level timing, input scanning, output updates, and diagnostic messages. Exact pin multiplexing, ADC characteristics, timer resolution, and interface electrical limits must be checked in the current STMicroelectronics documentation before assigning the device to a precision instrument.
推荐
Smart Home Sensor Gateway
STM32L031K6U6 is a practical candidate for a small smart-home sensor gateway or edge node that aggregates local inputs and forwards status to a higher-level controller. Its verified 32 MHz Cortex-M0+ core and 32 KB flash are suited to protocol handling, debounce logic, configuration storage, and event scheduling in a compact product. The 5 x 5 mm UFQFPN package can help reduce board area when several modules are placed in a distributed housing. However, the supplied data does not verify wireless capability, RAM, supply limits, or security resources, so the MCU should be treated as the local control element rather than assumed to provide standalone connectivity.
推荐
推荐产品汇总
工程参考数据： STM32L031K6U6 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM32L031K6U6TR | STM32L031G6U7 | STM32L031K6U3 |
|---|---|---|---|---|
| Package | 32-UFQFPN, 5 x 5 mm | 32-UFQFPN, 5 x 5 mm | 32-UFQFPN | 32-UFQFPN |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| CPU Core | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ | Arm Cortex-M0+ |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Product Series | STM32L0 | STM32L031 | STM32L031 | STM32L031 |
关键差异点
- Verified Cortex-M0+ processing core （对比 STM32L031K6U6TR)
- Compact 32-UFQFPN package （对比 STM32L031G6U7)
- 32 KB flash allocation （对比 STM32L031K6U3)
设计说明
Begin power budgeting from the actual mode, clock, and peripheral configuration rather than from the 32 MHz headline frequency. The supplied excerpts confirm the STM32L0 family's ultra-low-power positioning but do not provide active, sleep, or shutdown current values. Confirm those values in the manufacturer datasheet, then include sensor leakage, pull networks, communications, and regulator efficiency in the battery-life calculation. Use a low-power mode only after checking wake-up sources and the latency required by the application.
Treat the 32-UFQFPN footprint as a precision surface-mount layout task. Verify pin numbering, exposed-pad requirements, solder-mask and paste geometry, thermal-via pattern, and assembly clearances against the current STMicroelectronics package drawing. Place decoupling and any required clock or reset components according to the datasheet reference layout, keeping sensitive timing and communication routes away from noisy switching nodes. The supplied data does not include a verified pin table, so do not infer pad assignments from the package name.
A related STM32L031 ordering code is not automatically a drop-in substitute. Before replacing STM32L031K6U6, compare the exact suffix, package, pinout, flash and RAM, voltage range, temperature range, peripheral map, startup behavior, and programming/debug requirements. The supplied comparison pages establish only limited family similarities. In particular, confirm the manufacturer datasheet revision and obtain an engineering sign-off before changing a released PCB or production BOM.
Plan firmware and PCB decisions together. A 32 MHz Arm Cortex-M0+ core can execute control and communication logic efficiently, but real performance depends on peripheral availability, memory, interrupt structure, and clock setup. Keep firmware modules portable where possible, reserve pins for programming and debug access, and validate low-power transitions with representative load switching. This prevents a nominally compatible MCU replacement from causing hidden software, timing, or board-level regressions.
合规信息
The supplied verified results identify the STM32L031K6 family and its distributor listings but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Compliance fields remain unknown rather than assumed.
