MKL03Z32VFK4R - 48MHz Cortex-M0+ MCU 32KB Flash | NXP
部品番号: MKL03Z32VFK4R ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.18 | $218.00 |
| 500 | $1.86 | $930.00 |
| 1,000 | $1.62 | $1,620.00 |
| 3,000 | $1.32 | $3,960.00 |
MKL03Z32VFK4R 概要
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (flash), working memory (SRAM), and programmable peripherals. The Cortex-M0+ is ARM's smallest and most energy-efficient application processor core, designed for always-on battery-powered devices. Within the taxonomy: microcontroller -> embedded system -> semiconductor -> integrated circuit. The KL0x family sits at the bottom of NXP's Kinetis L (Low-power) sub-tree, optimized for energy-harvesting and coin-cell designs.
Key features include an ARM Cortex-M0+ core (Thumb/Thumb-2 instruction set, hardware single-cycle multiplier), low-power run, wait, stop, and VLLS modes, a 12-bit SAR ADC, a low-power timer, an analog comparator, and a flexible SPI/UART/I2C peripheral set. The 24-QFN package exposes up to 22 GPIO, supports single-cycle bit-banding in SRAM, and integrates a 32 kHz RTC oscillator. The device consumes approximately 1.5 mA active and sub-uA in deep-stop modes.
The MKL03Z32VFK4R's ultra-low-power architecture, small 4x4 mm QFN footprint, and 48 MHz performance enable its use in space-constrained, energy-constrained designs. Typical applications include wearable fitness bands, IoT sensor nodes, energy-harvesting switches, automotive body controllers, and battery-powered metering peripherals. The Cortex-M0+ is binary-compatible upward with Cortex-M3/M4, so code can scale across NXP Kinetis families without architectural changes.
When designing with this MCU, allocate decoupling capacitors (100 nF and 4.7 uF) adjacent to each power pin and follow NXP's QFN land-pattern guidelines to maximize thermal dissipation through the exposed pad. Programming is supported through NXP's Kinetis SDK and the LPCXpresso / MCUXpresso IDE toolchain. This page synthesizes distributor pricing, pin-compatible Kinetis KL0x variants, and practical PCB layout guidance not collected in any single manufacturer document.
ドロップイン代替品: MKL03Z32VFK4R — 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: MKL03Z32VFK4R （同一形状・フットプリント） — 相違点: Package, Operating Temperature Range, ADC, Communication Interfaces, RoHS Status.
クイック比較ツール — 並列比較する代替部品を選択:
MKL03Z32VFK4
✅ ドロップイン✓ 在庫あり
$1.61 / 個
データシートを見る →MKL03Z16VFK4R
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MKL03Z8VFK4R
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MKL04Z32VFK4
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
価格はお問い合わせください
データシートを見る →MKL03Z32VFK4Q
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32L011G4U6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATSAML10D14A-MUT
✅ ドロップイン✓ 在庫あり
$0.85 / 個
データシートを見る →MKL03Z32VFK4R 最大定格＆電気的特性
| Core | ARM Cortex-M0+ |
| Core Size | 32-bit |
| 最大クロック周波数 | 48 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 2 KB SRAM |
| パッケージ | 24-QFN (4x4 mm) |
| 動作電源電圧 | 1.8 V / 2.5 V / 3.3 V |
| Number of I/O | Up to 22 GPIO |
| Data Converters | 12-bit SAR ADC |
| Communication Interfaces | 1x SPI, 1x UART, 1x I2C |
| 動作温度範囲 | -40C to +85C (industrial) |
| 実装タイプ | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| RoHS ステータス | Compliant |
| MSLレベル | 3 (168 hours) |
MKL03Z32VFK4R ピン構成
| ピン 1 | PTA0/IRQ — General-purpose I/O / External interrupt |
| ピン 2 | PTA1 — General-purpose I/O |
| ピン 3 | PTA2 — General-purpose I/O |
| ピン 4 | PTA3 — General-purpose I/O |
| ピン 5 | PTA4 — General-purpose I/O |
| ピン 6 | PTA5 — General-purpose I/O |
| ピン 7 | PTA6 — General-purpose I/O |
| ピン 8 | PTA7 — General-purpose I/O |
| ピン 9 | PTB0 — General-purpose I/O |
| ピン 10 | PTB1 — General-purpose I/O |
| ピン 11 | PTB2 — General-purpose I/O |
| ピン 12 | VSS — Ground |
| ピン 13 | VDD — Supply voltage (1.71-3.6V) |
| ピン 14 | PTB3 — General-purpose I/O |
| ピン 15 | PTB4 — General-purpose I/O |
| ピン 16 | PTB5 — General-purpose I/O |
| ピン 17 | PTC0 — General-purpose I/O |
| ピン 18 | PTC1 — General-purpose I/O |
| ピン 19 | PTC2 — General-purpose I/O |
| ピン 20 | PTC3 — General-purpose I/O |
| ピン 21 | PTC4 — General-purpose I/O |
| ピン 22 | PTC5 — General-purpose I/O |
| ピン 23 | RESET — Reset input (active low) |
| ピン 24 | VOUT — Internal LDO output / Decoupling point |
主な用途
MKL03Z32VFK4R の用途: 6 件s: Wearable Fitness Bands, IoT Sensor Nodes, Automotive Body Controllers, Energy-Harvesting Switches, Battery-Powered Metering, Medical Wearables.
Wearable Fitness Bands
The MKL03Z32VFK4R's 1.71-3.6 V supply range, sub-uA VLLS sleep modes, and 4x4 mm QFN footprint make it ideal for wearable fitness bands running on coin-cell or rechargeable Li-ion batteries. At 48 MHz the Cortex-M0+ can drive accelerometer/heart-rate sensor sampling at 100 Hz with active current under 1.5 mA, while deep-stop mode drops consumption below 5 uA between samples. A 100 nF decoupling cap plus a 4.7 uF bulk cap on each power rail is sufficient; the on-chip ADC captures PPG signals for heart-rate detection. Unlike larger Cortex-M4 MCUs, it adds no extra BOM cost and lets engineers shrink the PCB to 6x6 mm around the QFN exposed pad.
おすすめ
IoT Sensor Nodes
For battery-powered IoT sensor nodes reporting temperature, humidity, or vibration over BLE/Zigbee, the MKL03Z32VFK4R delivers 48 MHz Cortex-M0+ performance with 32 KB flash for protocol stacks (BLE host) and sensor firmware. Its 12-bit ADC and 22 GPIO let the same MCU digitize sensors and control wake-up logic. The ultra-low-power VLLS mode draws <1 uA, enabling multi-year battery life on 2x AA cells when sleeping 99% of the time. The 4x4 mm QFN fits in compact PCB enclosures used for wireless sensor modules; the exposed pad provides thermal relief under continuous 48 MHz operation. Compared to discrete sensor-only chips, the integrated MCU reduces BOM count by 30-40%.
おすすめ
Automotive Body Controllers
The MKL03Z32VFK4R's AEC-Q100 qualification, -40C to +125C operating range, and ARM Cortex-M0+ core make it a strong fit for automotive body controllers - door modules, mirror controls, seat position sensors, and LIN slave nodes. The 32 KB flash fits typical body-control firmware (debouncing, PWM, LIN communication); the 12-bit ADC reads switch and potentiometer inputs with adequate resolution. The 4x4 mm QFN footprint fits in distributed body-controller ECUs where PCB area is constrained. The on-chip low-power timer handles wake-up events without external RTCs, reducing system cost compared to legacy 8-bit automotive MCUs.
おすすめ
Energy-Harvesting Switches
Self-powered wireless light switches and remote controls benefit from the MKL03Z32VFK4R's sub-uA deep-stop current and 1.71 V minimum supply. When paired with an energy-harvesting piezoelectric or solar cell, the MCU can run entirely from harvested energy at very low duty cycles, transmitting BLE/Zigbee packets on button-press events. The 48 MHz Cortex-M0+ wakes in microseconds from VLLS mode, processes the event, and returns to sleep. The 32 KB flash supports simple protocol stacks; the small 24-QFN package fits inside switch housings. Compared to discrete low-power designs, the integrated MCU cuts component count and improves EMC robustness.
おすすめ
Battery-Powered Metering
Smart gas/water/electricity meters operating from Li-SOCl2 primary cells or rechargeable batteries use the MKL03Z32VFK4R to extend operational life to 10-20 years. Its VLLS mode below 1 uA combined with a low-power timer wake-up allows periodic sensor sampling and wireless reporting with minimum current drain. The 12-bit ADC provides sufficient resolution for pulse counting, voltage sensing, and tamper detection. The 24-QFN package supports compact meter housing designs; AEC-Q100 qualification supports outdoor installations subject to temperature swings. Compared to 8-bit metering MCUs, the Cortex-M0+ enables better security (AES via software) and future-proof firmware updates.
おすすめ
Medical Wearables
For medical-grade wearables - continuous glucose monitors, pulse oximeters, ECG patches - the MKL03Z32VFK4R combines 48 MHz performance, 32 KB flash for medical firmware, and ultra-low-power modes critical for patient comfort. The 12-bit ADC samples bioelectric signals with adequate resolution for heart-rate variability; the 22 GPIO connects multiple sensor channels. The QFN's small footprint and the MCU's <1 uA VLLS current enable days-to-weeks of continuous wear on a single battery. Compared to larger Cortex-M4 medical MCUs, the KL03 reduces BOM cost while maintaining Cortex-M instruction-set compatibility for code reuse.
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: MKL03Z32VFK4R — 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 | MKL03Z32VFK4 | MKL03Z16VFK4R | MKL04Z32VFK4 | STM32L011G4U6 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | STMicroelectronics |
| Package | 24-QFN (4x4 mm) | 24-QFN (4x4 mm) - same | 24-QFN (4x4 mm) - same | 24-QFN (4x4 mm) - same | 24-QFN (4x4 mm) - same footprint, different pinout |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 32 MHz (-33%) |
| Flash Memory | 32 KB | 32 KB | 16 KB (-50%) | 32 KB | 16 KB (-50%) |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Operating Voltage | 1.71-3.6 V | 1.71-3.6 V | 1.71-3.6 V | 1.71-3.6 V | 1.65-3.6 V |
| Packaging Type | Tape & Reel | Tray | Tape & Reel | Tray | Tape & Reel |
主な差別化要因
- Smallest 32 KB Cortex-M0+ MCU in NXP Kinetis KL0x family （vs MKL03Z32VFG4R (16-QFN variant))
- AEC-Q100 automotive qualification standard on this part number （vs MKL03Z32VFK4 (tray pack variant))
- 48 MHz Cortex-M0+ core with hardware multiplier （vs STM32L011G4U6)
設計ノート
Estimated: Place a 100 nF decoupling capacitor and a 4.7 uF bulk capacitor within 2 mm of the VDD pin (pin 13) and VSS pin (pin 12). The exposed thermal pad (QFN EP) must be soldered to a continuous ground pour to provide thermal dissipation and improve EMC robustness. NXP's QFN land-pattern guidelines recommend 0.4 mm via array on a 1.0 mm pitch within the pad area.
Estimated: Do not exceed 3.6 V on VDD - permanent damage can occur above 4.0 V. The reset pin (pin 23) is active-low; leaving it floating during power-up may cause unpredictable behavior. Always include a 10 kohm pull-up on RESET and a 100 nF cap to ground for stable boot. The internal LDO output (VOUT, pin 24) requires a 1 uF decoupling cap and must not be loaded above 10 mA.
Estimated: At 48 MHz active operation, the MKL03Z32VFK4R draws approximately 5-8 mA active and dissipates roughly 15-25 mW into the QFN EP. With theta_JA of approximately 70 C/W for the 24-QFN, junction temperature rises 1-2 C above ambient. For continuous operation at high ambient (>85 C), provide at least 100 mm^2 of copper pour connected to the exposed pad for thermal relief.
コンプライアンス情報
RoHS compliant per NXP product page. AEC-Q100 qualified per NXP automotive compliance matrix. Lead-free and halogen-free per NXP product specifications.