STM32L151QDH6 - 32MHz Cortex-M3 384KB MCU | STMicroelectronics
部品番号: STM32L151QDH6 ✓ 生産中STM32L151QDH6 概要
An ultra-low-power microcontroller is a semiconductor device designed to minimize energy consumption while executing control, communications, sensing, and data-processing functions. The STM32L151QDH6 combines an ARM Cortex-M3 RISC core, embedded Flash, SRAM, USB, analog conversion, digital-to-analog conversion, LCD support, memory interfaces, and communication peripherals. Within the product hierarchy, it is a 32-bit microcontroller and system-on-chip solution for battery-operated and energy-conscious embedded products.
Verified device information identifies 384 KB of Flash, a 32 MHz Cortex-M3 core, a 132-UFBGA package, 3.3 V operation, and USB support. Additional verified sources list 48 KB SRAM, 12 KB EEPROM, two 12-bit converters, LCD support, ADC, DAC, and memory interfaces. These resources allow firmware, interface drivers, application logic, and control functions to be consolidated without requiring a separate external memory device in many designs.
The USB capability makes this MCU useful for portable data-acquisition equipment, USB-connected sensors, configuration tools, and service interfaces. Its analog resources are useful for industrial monitoring and battery-powered instrumentation, while the large Flash footprint can accommodate connected-device firmware, protocol stacks, and local data-processing functions. The compact 7x7 mm UFBGA is appropriate for space-constrained designs but requires careful PCB layout and assembly process control.
Designers should verify supply voltage limits, GPIO drive characteristics, analog-reference requirements, clock configuration, USB transceiver connections, decoupling, and exposed-ball assignments against the manufacturer datasheet before layout. Because the exact 132-ball pinout is not provided in the verified data and no canonical 132-UFBGA package illustration exists in the available package library, this page conservatively omits individual pin assignments rather than presenting unverified connection data.
This page consolidates verified distributor and manufacturer information, purchase channels, technical comparisons, drop-in replacement findings, and application guidance. Its main engineering value is separating confirmed STM32L151QDH6 attributes from specifications that still require confirmation from the complete manufacturer datasheet.
ドロップイン代替品: STM32L151QDH6 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
STM32L152QDH6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32L151QDH6 最大定格＆電気的特性
| Product Type | Ultra-low-power 32-bit microcontroller |
| Microcontroller Family | STM32L1 |
| Processor Core | Arm Cortex-M3 |
| Instruction Width | 32 bit |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 384 KB |
| Flash Organization | 384K x 8 bit |
| SRAM | 48 KB |
| EEPROM | 12 KB |
| 電源電圧 | 3.3 V |
| ADC Resolution | 12 bit |
| DAC Resolution | 12 bit |
| USB Connectivity | Yes |
| LCD Support | Yes |
| Memory Interface | Yes |
| パッケージ | 132-UFBGA (7x7 mm) |
| 実装タイプ | Surface mount |
| ピン数 | 132 pins |
STM32L151QDH6 132-ufbga (7x7 mm) ピン配置ガイド
STM32L151QDH6 (132-ufbga (7x7 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: STM32L151QDH6.
詳細は データシート をご参照ください。
主な用途
STM32L151QDH6 の用途: 6 件s: USB-Connected Sensor Nodes, Industrial Condition Monitoring, Battery-Powered Instrumentation, Portable Medical and Diagnostic Devices, Configuration and Programming Tools, Human-Machine Interface Control.
USB-Connected Sensor Nodes
The STM32L151QDH6 fits USB-connected sensor nodes because it combines USB support, a 32 MHz Arm Cortex-M3 core, 384 KB Flash, and 48 KB SRAM in one 132-UFBGA device. Firmware can acquire sensor data through the 12-bit ADC, perform local filtering, and expose results through USB without a separate interface controller. The 3.3 V operating designation fits many USB-powered industrial and laboratory products. Designers should budget USB routing, ESD protection, connector mechanics, and decoupling around the 7x7 mm UFBGA footprint.
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Industrial Condition Monitoring
STM32L151QDH6 is suitable for industrial condition-monitoring equipment that must combine analog measurement, local logic, and compact embedded storage. Its 12-bit ADC can capture inputs from temperature, vibration, pressure, or level sensors, while the 32 MHz Cortex-M3 core can perform filtering and event classification. The 384 KB Flash provides room for firmware and diagnostic data handling without an external memory device in many configurations. A robust production design still requires calibrated analog front ends, protected I/O, fault monitoring, and validated EMC performance.
おすすめ
Battery-Powered Instrumentation
The STM32L151QDH6 fits battery-powered instrumentation where processing capability and storage must coexist with low-power operation. Its STM32L1 ultra-low-power architecture, 32 MHz Cortex-M3 core, and 384 KB Flash allow local measurement and control without a more power-hungry processor. The 48 KB SRAM supports buffering, while the 12-bit ADC and DAC support signal acquisition and stimulus generation. Actual operating time depends on sleep-mode selection, clock policy, sensor duty cycle, and the selected output stage.
おすすめ
Portable Medical and Diagnostic Devices
STM32L151QDH6 can support portable diagnostic and monitoring products that need local processing, USB connectivity, and flexible analog interfaces. The 32-bit Cortex-M3 core handles control logic, the 12-bit ADC acquires sensor signals, and the DAC can generate references or test stimuli. Its 384 KB Flash and 48 KB SRAM are useful for compact multi-function firmware. Medical use requires a complete risk assessment, validated measurement accuracy, isolation where applicable, and compliance with the product-specific regulatory standard.
おすすめ
Configuration and Programming Tools
The STM32L151QDH6 is appropriate for embedded configuration tools, USB service interfaces, and compact programming appliances. Its 384 KB Flash can store device firmware, protocol handlers, calibration tables, and update logic, while USB provides a direct connection to a host computer. The 132-UFBGA package also permits a compact handheld enclosure, although assembly and rework require suitable fine-pitch BGA capability. Firmware should include secure boot and signed update mechanisms when the tool can modify sensitive equipment.
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Human-Machine Interface Control
STM32L151QDH6 can act as the central controller in a compact human-machine interface because it combines substantial code storage with LCD support, ADC and DAC resources, and USB connectivity. The 32 MHz Cortex-M3 core can drive displays, scan controls, update indicators, and handle configuration data. The 384 KB Flash offers room for larger interface assets and protocol code, while 48 KB SRAM supports display and input buffering. Production designs should verify LCD timing, logic-level compatibility, ESD protection, and the official UFBGA layout.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STM32L151QDH6 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | STM32L152QDH6 |
|---|---|---|
| Package | 132-UFBGA (7x7 mm) | 132-UFBGA (7x7 mm) |
| Brand | STMicroelectronics | STMicroelectronics |
| Special Features | LCD support and memory interface | Additional connectivity features indicated by comparison source; complete verified details not provided |
主な差別化要因
- Large Flash allocation for a low-power Cortex-M3 MCU （vs STM32L152QDH6)
- USB and analog resources consolidated in a compact package （vs STM32L152QDH6)
- Directly evidenced same-package STMicroelectronics migration path （vs STM32L152QDH6)
設計ノート
Treat the 132-UFBGA layout as a high-density BGA design rather than a generic fine-pitch IC footprint. Obtain the official package drawing and recommended land pattern from STMicroelectronics, then have the PCB manufacturer review escape routing, via-in-pad policy, solder-mask dam design, and assembly capability. The verified data confirms a 7x7 mm body but does not provide ball coordinates, so the land pattern must not be reconstructed from a generic 132-BGA drawing.
Use the manufacturer-recommended power and decoupling arrangement before connecting the 3.3 V supply. Separate sensitive analog supplies from switching and digital currents where the device architecture permits, keep supply-return paths compact, and verify the analog-reference requirements for the 12-bit ADC and DAC. The supplied source confirms 3.3 V operation but does not provide voltage limits or capacitor values, so those details must be taken directly from the complete datasheet.
Route USB, clock, and reset paths with short, continuous traces and provide controlled return paths beneath high-speed interfaces. Place USB protection close to any external connector and keep analog inputs away from switching nodes and digital clock edges. Because the complete 132-ball assignment is absent from the verified sources, check every multiplexed signal against the official pin table before assigning a function to an unused or reserved ball.
Do not treat a matching package as proof that two STM32 MCUs are interchangeable. A genuine replacement must match pin multiplexing, power pins, USB behavior, ADC and DAC channels, memory mapping, clock requirements, bootloader behavior, and firmware support. STM32L152QDH6 is the only verified same-package candidate for STM32L151QDH6, and it should undergo schematic, PCB, firmware, timing, and production validation before release.
コンプライアンス情報
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the manufacturer name or general STM32 family conventions.
