MKL03Z32VFK4R - 48MHz Cortex-M0+ MCU 32KB Flash | NXP
Référence : MKL03Z32VFK4R ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour MKL03Z32VFK4R — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MKL03Z32VFK4R (même facteur de forme et même empreinte) — différant par Package, Operating Temperature Range, ADC, Communication Interfaces, RoHS Status.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MKL03Z32VFK4
✅ Remplacement direct✓ En stock
$1.61 / unité
Voir la fiche technique →MKL03Z16VFK4R
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MKL03Z8VFK4R
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MKL04Z32VFK4
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →MKL03Z32VFK4Q
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32L011G4U6
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAML10D14A-MUT
✅ Remplacement direct✓ En stock
$0.85 / unité
Voir la fiche technique →MKL03Z32VFK4R Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M0+ |
| Core Size | 32-bit |
| Fréquence d'horloge maximale | 48 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 2 KB SRAM |
| Boîtier | 24-QFN (4x4 mm) |
| Tension d'alimentation de fonctionnement | 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 |
| Plage de température de fonctionnement | -40C to +85C (industrial) |
| Type de montage | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| Statut RoHS | Compliant |
| Niveau MSL | 3 (168 hours) |
Configuration des broches de MKL03Z32VFK4R
| Broche 1 | PTA0/IRQ — General-purpose I/O / External interrupt |
| Broche 2 | PTA1 — General-purpose I/O |
| Broche 3 | PTA2 — General-purpose I/O |
| Broche 4 | PTA3 — General-purpose I/O |
| Broche 5 | PTA4 — General-purpose I/O |
| Broche 6 | PTA5 — General-purpose I/O |
| Broche 7 | PTA6 — General-purpose I/O |
| Broche 8 | PTA7 — General-purpose I/O |
| Broche 9 | PTB0 — General-purpose I/O |
| Broche 10 | PTB1 — General-purpose I/O |
| Broche 11 | PTB2 — General-purpose I/O |
| Broche 12 | VSS — Ground |
| Broche 13 | VDD — Supply voltage (1.71-3.6V) |
| Broche 14 | PTB3 — General-purpose I/O |
| Broche 15 | PTB4 — General-purpose I/O |
| Broche 16 | PTB5 — General-purpose I/O |
| Broche 17 | PTC0 — General-purpose I/O |
| Broche 18 | PTC1 — General-purpose I/O |
| Broche 19 | PTC2 — General-purpose I/O |
| Broche 20 | PTC3 — General-purpose I/O |
| Broche 21 | PTC4 — General-purpose I/O |
| Broche 22 | PTC5 — General-purpose I/O |
| Broche 23 | RESET — Reset input (active low) |
| Broche 24 | VOUT — Internal LDO output / Decoupling point |
Applications typiques
MKL03Z32VFK4R convient pour 6 applications: 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.
Recommandé
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%.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MKL03Z32VFK4R — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
RoHS compliant per NXP product page. AEC-Q100 qualified per NXP automotive compliance matrix. Lead-free and halogen-free per NXP product specifications.