STM32F042K4T6 - 48MHz Cortex-M0 16KB MCU | STMicroelectronics
部品番号: STM32F042K4T6 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.0363 | $3.04 |
| 10 | $2.28462 | $22.85 |
| 25 | $2.09635 | $52.41 |
| 100 | $1.88973 | $188.97 |
| 250 | $1.79116 | $447.79 |
| 500 | $1.73175 | $865.88 |
| 1,000 | $1.68286 | $1,682.86 |
| 2,500 | $1.63123 | $4,078.08 |
| 5,000 | $1.60013 | $8,000.65 |
STM32F042K4T6 概要
What is an ARM Cortex-M0 microcontroller? An MCU is an integrated semiconductor containing a processor core, memory, peripherals, and interfaces on one package. The ARM Cortex-M0 is a compact 32-bit embedded processor core designed for cost-sensitive, energy-efficient control systems. In the STM32F0 family, it supports embedded control, USB communications, CAN networking, and general-purpose peripherals within a small power-management and processing footprint.
Key features include a 48 MHz maximum CPU frequency and 16 KB of Flash memory. The verified distributor listing identifies 16 KB organized as 16K x 8 and identifies USB and CAN connectivity. The STM32F042K4T6 is also listed with 2.5 V and 3.3 V operating-supply descriptions in distributor data. Its 32-LQFP 7 x 7 mm package provides 32 external pins for power, clock, communication, and general-purpose I/O connections.
The device is suited to compact USB-connected peripherals, CAN-based industrial interfaces, low-cost control panels, sensor hubs, and embedded instrumentation. Its 48 MHz Cortex-M0 core is appropriate for interrupt-driven control, protocol handling, and application logic where a higher-performance Cortex-M3 or Cortex-M4 core is unnecessary. The 16 KB Flash capacity requires attention when selecting firmware size, boot code, and application-code partitioning.
For PCB implementation, confirm the exact pin assignment and exposed functionality against the manufacturer datasheet before routing USB, CAN, crystal, reset, and supply connections. The provided search data does not include a complete electrical timing table, absolute maximum ratings, transceiver details, or a verified pin-by-pin description; those values require manufacturer documentation. The 32-LQFP package is suitable for automated assembly and is distinct from STM32F042K4U6, which uses a different package option.
This page synthesizes verified distributor specifications, package information, pricing references, available cross-reference candidates, and practical sourcing considerations for engineers evaluating the STM32F042K4T6. Confirm current stock, lifecycle status, and manufacturer documentation before production release.
ドロップイン代替品: STM32F042K4T6 — 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: STM32F042K4T6 （同一形状・フットプリント） — 相違点: Package.
クイック比較ツール — 並列比較する代替部品を選択:
STM32F042K6T6
✅ ドロップイン✓ 在庫あり
$1.84 / 個
データシートを見る →STM32F042K4T6TR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32F042K4U6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32F042K4T6
✅ ドロップイン✓ 在庫あり
$1.60013 / 個
データシートを見る →STM32F042K4T6 最大定格＆電気的特性
| Product Type | ARM Cortex-M0 32-bit Microcontroller |
| Product Family | STM32F0 |
| Maximum CPU Frequency | 48 MHz |
| Processor Core | ARM Cortex-M0 |
| Flash Memory | 16 KB (16K x 8) |
| 電源電圧 | 2.5 V to 3.3 V |
| Connectivity | USB and CAN |
| パッケージ | 32-LQFP 7 x 7 mm |
| ピン数 | 32 pins |
| Architecture | 32-bit RISC |
| 実装タイプ | Surface Mount |
STM32F042K4T6 32-lqfp 7 x 7 mm ピン配置ガイド
STM32F042K4T6 (32-lqfp 7 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: STM32F042K4T6.
詳細は データシート をご参照ください。
主な用途
STM32F042K4T6 の用途: 6 件s: USB-Connected Embedded Controller, CAN Bus Sensor Hub, USB-CAN Protocol Bridge, Low-Cost Industrial Control Module, USB-Firmware Update Dongle, Compact USB Security and Access Controller.
USB-Connected Embedded Controller
The STM32F042K4T6 fits compact USB-connected products because the verified listing identifies USB connectivity, a 48 MHz ARM Cortex-M0 core, and 16 KB Flash memory. It can manage device control, configuration, status reporting, and application-specific USB tasks in a small 32-LQFP 7 x 7 mm package. The 16 KB Flash limit is the main design constraint: boot code, descriptors, protocol stacks, and application logic must be budgeted together. Use the manufacturer datasheet to confirm USB device or host capability, pin multiplexing, transceiver requirements, clock configuration, and bus timing before finalizing the PCB.
おすすめ
CAN Bus Sensor Hub
The STM32F042K4T6 is suitable for a CAN-connected sensor hub when the system needs a low-cost 48 MHz Cortex-M0 controller with integrated CAN connectivity. Its 32-LQFP package provides access to communication and general-purpose pins, while an external CAN transceiver handles the physical bus. Use the device for sensor polling, local filtering, alarm thresholds, diagnostics, and message forwarding. Verify CAN timing, operating temperature, pin assignment, termination strategy, ESD protection, and isolation requirements in the manufacturer documentation before production.
おすすめ
USB-CAN Protocol Bridge
The STM32F042K4T6 can serve as the control MCU in a USB-to-CAN bridge when the application prioritizes a compact Cortex-M0 implementation with USB and CAN connectivity. The bridge can translate USB commands into CAN frames, maintain local status, and provide configurable filtering or diagnostics. Its 48 MHz processing rate is adequate for protocol handling, while the 16 KB Flash capacity limits the size of the protocol stack and management firmware. Validate USB enumeration, CAN bit timing, watchdog behavior, bus fault recovery, and thermal performance with the exact STMicroelectronics documentation.
おすすめ
Low-Cost Industrial Control Module
The STM32F042K4T6 is appropriate for compact industrial control modules that need deterministic embedded processing without a large application MCU. Its 48 MHz ARM Cortex-M0 core can execute interrupt-driven control logic, state-machine sequencing, input monitoring, and communication handling. The verified 32-LQFP 7 x 7 mm package simplifies board integration, but its 16 KB Flash memory requires disciplined firmware partitioning and may not suit complex human-interface or protocol stacks. Confirm industrial temperature requirements, supply tolerances, watchdog behavior, ESD protection, and long-term availability before design freeze.
おすすめ
USB-Firmware Update Dongle
The STM32F042K4T6 is a reasonable fit for a compact USB firmware-update dongle where the target device needs a Cortex-M0 controller, USB connectivity, and a small package. The MCU can manage USB enumeration, bootloader commands, authentication checks, flash programming, status reporting, and recovery logic. The verified 16 KB Flash capacity is a meaningful limitation, so a separate target-device bootloader and compact firmware architecture may be required. Confirm USB device support, boot-memory configuration, voltage levels, connector protection, and update endurance in the official datasheet and reference documentation.
おすすめ
Compact USB Security and Access Controller
The STM32F042K4T6 can support a compact USB security or access-control peripheral when the design requires local command handling and peripheral integration. Potential functions include credential input, relay or indicator control, event logging, and host communication over USB. The 48 MHz Cortex-M0 core supports real-time control logic, but the 16 KB Flash capacity and unverified security peripheral list make it necessary to review cryptographic requirements, timing, tamper handling, and code update strategy carefully. Use the manufacturer documentation to validate security features rather than assuming them from the STM32 family name.
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: STM32F042K4T6 — 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 | STM32F042K6T6 | STM32F042K4T6TR | STM32F042K4U6 | STM32F042C4U6 |
|---|---|---|---|---|---|
| Package | 32-LQFP 7 x 7 mm | 32-LQFP 7 x 7 mm | 32-LQFP 7 x 7 mm | 32-LQFP 7 x 7 mm | 48-LQFP; not same package |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Processor Core | ARM Cortex-M0 | ARM Cortex-M0 family | ARM Cortex-M0 family | ARM Cortex-M0 family | ARM Cortex-M0 family |
| Maximum Frequency | 48 MHz | 48 MHz family positioning | 48 MHz family positioning | 48 MHz family positioning | 48 MHz family positioning |
| Flash Memory | 16 KB | 32 KB | 16 KB base device | 16 KB family positioning | 16 KB family positioning |
| Connectivity | USB and CAN | STM32F042 family connectivity; verify exact peripheral set | STM32F042 base-device connectivity | STM32F042 family connectivity; verify exact peripheral set | STM32F042 family connectivity; verify exact peripheral set |
| Pin Count | 32 pins | 32 pins | 32 pins | 32 pins | 48 pins |
主な差別化要因
- A compact Cortex-M0 solution with integrated connectivity positioning （vs STM32F042K4T6TR)
- More Flash headroom for protocol-heavy firmware （vs STM32F042K6T6)
- Lower pin count for compact board layouts （vs STM32F042C4U6)
設計ノート
Route USB, CAN, clock, reset, and decoupling connections according to the official STM32F042K4T6 pinout and reference schematic. The verified data confirms a 32-LQFP 7 x 7 mm package, but it does not include the complete pin mapping. Before layout release, verify every alternate-function connection and keep the USB or CAN differential route short, continuous, and away from switching nodes. The package footprint and exposed-pad or thermal requirements must also be checked against the manufacturer drawing.
The supplied distributor data identifies 2.5 V and 3.3 V operation, but it does not provide the complete regulator sequencing or pin-level voltage table. Design the power tree around the manufacturer-recommended supply topology, include local ceramic decoupling at the MCU supply pins, and confirm startup behavior, current limits, brownout behavior, and maximum input voltage in the official datasheet. Do not infer USB or CAN transceiver voltage levels from the MCU supply label alone.
The 16 KB Flash capacity is the most consequential sizing constraint for this device. Include boot code, USB descriptors, CAN drivers, application logic, diagnostics, and update mechanisms in the memory budget rather than sizing only the main application. Confirm whether peripheral functions consume the same small package pins that are needed for debug or communication, and avoid selecting a 48-pin related part without planning the corresponding PCB redesign.
For USB or CAN interfaces, use the manufacturer reference layout and validate the external transceiver, protection network, connector geometry, return path, and impedance-controlled routing. CAN requires correct termination only at the physical bus endpoints and careful handling of transceiver standby/fault states. USB requires a compliant connector and signal path, but the supplied data does not confirm USB speed or device-versus-host capability; verify those details before selecting passives or a transceiver.
コンプライアンス情報
The supplied distributor and cross-reference data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Obtain the current manufacturer product and quality documentation before making a compliance claim.
