STM32G081CBT6 - 64MHz 128KB Cortex-M0+ MCU | STMicroelectronics
部品番号: STM32G081CBT6 ✓ 生産中STM32G081CBT6 概要
A microcontroller is an embedded-control semiconductor that integrates a processor core, program memory, working memory, and peripherals on one device. The STM32G0 series belongs to the hierarchy of ARM Cortex-M microcontrollers, embedded processors, and general-purpose semiconductor control devices. STM32G081CBT6 combines that processing capability with memory protection and a securable Flash area, supporting controlled firmware implementation in industrial, consumer, and connected products.
The STM32G081CBT6 operates at up to 64 MHz and includes 128 Kbytes of protected Flash with a securable area. Its SRAM allocation is 36 Kbytes, with 32 Kbytes equipped with hardware parity checking. A 12-bit ADC capability is identified in the product listing, while the Cortex-M0+ core provides a 32-bit instruction set designed for responsive control tasks. The available temperature options extend from -40°C to 85°C, 105°C, or 125°C, depending on the selected device grade.
The 48-LQFP package provides 48 external leads and a compact 7 x 7 mm footprint. This makes the STM32G081CBT6 suitable for controllers with moderate board-space requirements while retaining through-hole-style lead visibility for inspection and assembly. Its combination of 128 KB Flash, 36 KB SRAM, and a 64 MHz maximum clock gives embedded software designers a practical balance between program capacity, working memory, and processing performance.
Typical uses include compact industrial controllers, sensor-interface nodes, building-control modules, appliance-control boards, and low-cost connected products. In each case, the Cortex-M0+ core can execute control logic while the 128 KB Flash stores application firmware and the 36 KB SRAM supports working data. The small LQFP outline also enables a straightforward transition from a larger development package to a space-conscious production design when the PCB footprint is designed for the final 48-lead configuration.
Designers should base PCB pads and firmware bring-up on the complete STM32G081CBT6 pin description in the manufacturer datasheet. The maximum clock, memory map, peripheral configuration, reset behavior, and supply requirements must all be checked against the selected board and firmware configuration. Decoupling, clock stability, exposed thermal behavior, and unused-pin treatment should follow the device’s recommended application guidance rather than assumptions based on another STM32 member.
This product record combines the verified 64 MHz performance, 128 KB Flash, 36 KB SRAM, 12-bit ADC indication, and 48-LQFP package details with practical application guidance, same-family replacement options, and a parameter-by-parameter comparison. Those engineering-focused details help designers evaluate board fit, memory requirements, and migration options before committing a new PCB design.
ドロップイン代替品: STM32G081CBT6 — 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。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: STM32G081CBT6 （同一形状・フットプリント） — 相違点: Core, Flash Organization, Package.
STM32G071CBT6
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →STM32G0B1CBT6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32C071CBT6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32G0C1CBT6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32G091CBT6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32G081CBT6 最大定格＆電気的特性
| Product Type | 32-bit ARM Cortex-M0+ microcontroller |
| Maximum CPU Frequency | 64 MHz |
| Instruction Set | 32-bit ARMv6-M |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 bits |
| SRAM | 36 KB |
| Parity-Checked SRAM | 32 KB with hardware parity check |
| ADC Resolution | 12 bits |
| Operating Temperature Options | -40°C to 85°C, -40°C to 105°C, or -40°C to 125°C |
| パッケージ | 48-LQFP |
| Package Dimensions | 7 mm x 7 mm |
| Lead Count | 48 leads |
| 実装タイプ | Surface mount |
| Flash Protection | Protected memory with a securable area |
| Core | ARM 32-bit Cortex-M0+ CPU |
| Product Series | STM32G0 |
STM32G081CBT6 7 mm x 7 mm ピン配置ガイド
STM32G081CBT6 (7 mm x 7 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: STM32G081CBT6.
詳細は データシート をご参照ください。
主な用途
STM32G081CBT6 の用途: 6 件s: Compact Industrial Control Module, Sensor and IoT Edge Node, Building Automation Controller, Appliance Control Board, Current-Monitoring Control Board, Communication Gateway Controller.
Compact Industrial Control Module
The STM32G081CBT6 fits compact industrial control modules that need deterministic control from a 64 MHz ARM Cortex-M0+ core without the memory overhead of a high-end processor. Its 128 KB Flash provides space for control firmware, parameter tables, and communication handlers, while 36 KB of SRAM supports active working data and stack requirements. The 48-LQFP 7 x 7 mm package leaves usable board area around the controller for interfaces and power circuitry. For an industrial enclosure, confirm the exact temperature grade, supply limits, isolation strategy, and grounding layout from the manufacturer datasheet before production release.
おすすめ
Sensor and IoT Edge Node
The STM32G081CBT6 is appropriate for a sensor or IoT edge node that must acquire measurements, apply filtering, and manage local control logic. Its 12-bit ADC capability supports analog front-end designs, while the 64 MHz Cortex-M0+ core provides headroom for protocol processing and control tasks. With 128 KB of protected and securable Flash and 36 KB of SRAM, the device can hold firmware and operate without an external memory device in many designs. The 48-LQFP footprint also supports compact production assemblies, although the exact ADC channels, trigger behavior, and communication peripherals must be confirmed for each STM32G081 configuration.
おすすめ
Building Automation Controller
A building-automation controller can use the STM32G081CBT6 to combine sensor acquisition, local logic, and communication handling in a small 48-LQFP package. The 128 KB Flash capacity is useful for storing multiple control routines and configuration parameters, while 36 KB of SRAM accommodates live sensor and actuator state. Its 64 MHz Cortex-M0+ core is suitable for deterministic supervisory loops and event-driven firmware. For HVAC, access, or lighting control boards, designers should establish the required analog inputs, output timing, bus interfaces, low-power behavior, and safety margins before assigning exact peripheral functions.
おすすめ
Appliance Control Board
The STM32G081CBT6 can serve as the primary controller on an appliance board where a 32-bit core, local program memory, and a modest 7 x 7 mm footprint are advantageous. The 64 MHz operating speed supports responsive state-machine control, while 128 KB of Flash accommodates application firmware, lookup data, and diagnostic routines. Its 36 KB SRAM allows multiple control loops to operate without external memory in many designs. The LQFP package is straightforward to inspect after soldering, but motor, heater, and mains-connected functions still require correctly separated high-power and low-voltage circuitry plus manufacturer-recommended protection.
おすすめ
Current-Monitoring Control Board
The STM32G081CBT6 can coordinate current measurement and system supervision in a compact monitoring board. A suitable external current-sense device can feed a conditioned analog signal into the MCU’s 12-bit ADC capability, while the Cortex-M0+ core performs threshold evaluation, filtering, logging, and communications. The 128 KB Flash stores calibration tables and firmware, and 36 KB of SRAM supports acquisition buffers and operating state. Designers should verify the selected ADC channel, reference voltage, sampling behavior, and input range from the exact datasheet, then include calibration and fault-handling routines in the firmware design.
おすすめ
Communication Gateway Controller
The STM32G081CBT6 is suitable for a small protocol-conversion or communication gateway when local processing, firmware protection, and board size are important. Its 64 MHz Cortex-M0+ core can handle frame processing and supervisory logic, while 128 KB of protected Flash stores gateway firmware and 36 KB of SRAM supports active buffers. The 48-LQFP footprint makes it practical for compact gateway hardware where a larger BGA or fine-pitch package would complicate assembly. Exact UART, SPI, I2C, USB, and Ethernet availability must be checked for the selected device because peripheral options can vary across STM32G0 family members.
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: STM32G081CBT6 — 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 | STM32G071CBT6 | STM32G0B1CBT6 | STM32C071CBT6 | STM32G0C1CBT6 | STM32G091CBT6 |
|---|---|---|---|---|---|---|
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| CPU Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 36 KB | 36 KB | 36 KB | 36 KB | 36 KB | 36 KB |
| ADC Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits |
| Peripheral and Feature Set | STM32G0 baseline family configuration | G0-series configuration differences | G0B-series configuration differences | C0-series configuration differences | G0C-series configuration differences | G091 configuration differences |
主な差別化要因
- Matches the core memory profile of the listed STM32 alternatives （vs STM32G071CBT6)
- Same 7 x 7 mm footprint as the G0B1 option （vs STM32G0B1CBT6)
- Pin-compatible C0-family migration path （vs STM32C071CBT6)
- Same package and memory configuration as STM32G0C1CBT6 （vs STM32G0C1CBT6)
設計ノート
Assign the PCB footprint from the complete 48-LQFP drawing and STM32G081CBT6 pin table, including pin-1 orientation, exposed pad status, and every power and ground connection. Place decoupling capacitors beside their associated supply pins and use a low-impedance return path for each capacitor. Verify courtyard, solder mask, paste, and assembly clearances because the lead pitch and thermal requirements are not established by the abbreviated 7 x 7 mm package description alone.
Do not treat a same-package STM32 alternative as electrically and firmware-identical. Although all five listed alternatives use the 48-LQFP footprint, the G071, G0B1, C071, G0C1, and G091 families can differ in peripheral mix, clock configuration, communications, start-up behavior, and qualification. For a production migration, compare the exact pin table, alternate-function matrix, memory organization, timing limits, bootloader support, and application notes before releasing a schematic change.
Build the power tree from the manufacturer’s recommended operating and absolute-maximum limits rather than from the 64 MHz clock rating alone. Confirm the exact STM32G081CBT6 voltage range, regulator tolerance, startup current, and temperature grade. Use local bulk and high-frequency decoupling, provide a controlled reset path, and keep switching-regulator output ripple within the device limits because supply noise can affect ADC measurements and firmware execution.
Route clock, reset, and high-speed communication signals away from noisy switching nodes, and provide the shortest practical return paths for high-frequency signals. For any external sensor feeding the 12-bit ADC, match the analog bandwidth to the actual sampling rate and apply appropriate filtering at the source. Confirm ADC source impedance, reference stability, sampling-time requirements, and pin multiplexing in the exact datasheet rather than assuming that a 12-bit converter alone defines measurement accuracy.
コンプライアンス情報
No explicit compliance declaration was identified for the exact STM32G081CBT6 order code. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification documents with STMicroelectronics before procurement.
