MKL03Z8VFK4 - 48MHz ARM Cortex-M0+ MCU 8KB Flash | NXP
部品番号: MKL03Z8VFK4 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.67 | $3.67 |
| 10 | $3.3 | $33.00 |
| 100 | $2.85 | $285.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.1 | $2,100.00 |
| 3,000 | $1.85 | $5,550.00 |
MKL03Z8VFK4 概要
A microcontroller (MCU) is an integrated circuit that combines a processor core, program memory, data memory, and a rich set of peripherals into a single chip used to embed control logic in electronic systems. The Cortex-M0+ core is the smallest and most energy-efficient member of the ARM Cortex-M family, designed for deterministic embedded control in cost- and power-sensitive products. Within NXP's portfolio, the KL0x family is the entry point of the Kinetis L series, providing a migration path for legacy 8-bit users into the ARM ecosystem while remaining software- and tool-compatible with all other Kinetis L series devices.
Key features of the MKL03Z8VFK4 include a 48 MHz Cortex-M0+ core with single-cycle I/O access, 8 KB Flash and 2 KB SRAM, an ultra-low-power run mode down to 50 uA/MHz, multiple low-leakage stop modes, a low-power UART, 6-bit timer/PWM, and a tiny 1.6 x 2.0 mm WLCSP option (other variants). The 24-QFN (4x4) package provides a compact ~16 mm2 footprint ideal for space-constrained wearables and sensor nodes.
The KL03 architecture uses the Cortex-M0+ core with a configurable NVIC, single-cycle 32x32 multiplier, and a 4-channel DMA controller. Its ultra-low-power design supports multiple stop modes with RAM retention, fast wake-up times, and an integrated low-power timer that keeps basic timing functions alive while the core is halted, making the part well suited to battery-powered always-on applications.
Typical applications include wearable fitness bands, IoT sensor endpoints, low-power remote controls, smart metering nodes, and small consumer appliances. The combination of low active power, deep-sleep capability, and the tiny WLCSP/QFN footprint lets designers squeeze MCU functionality into coin-cell powered enclosures.
When designing with the KL03, ensure the VDDC and VDD pins are properly decoupled with 100 nF ceramic capacitors placed within a few millimeters of the pins, and pay attention to the low-power UART and external crystal requirements for stop-mode wake-up timing. Source current ratings from the NXP Kinetis KL03 reference manual, not just the simplified datasheet, when budgeting battery life.
This page synthesizes distributor pricing tiers, drop-in Kinetis KL0x family alternatives, and practical PCB-level design notes that are not assembled on any single manufacturer page, giving engineers a single decision-ready view of the MKL03Z8VFK4.
ドロップイン代替品: MKL03Z8VFK4 — 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: MKL03Z8VFK4 （同一形状・フットプリント） — 相違点: Package, Flash Memory, Series, SRAM, Connectivity.
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 →MKL02Z16VFG4
✅ 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 →MKL04Z32VFM4
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.15 / 個
データシートを見る →MKL26Z128VMC4
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.95 / 個
データシートを見る →MKL03Z8VFK4 最大定格＆電気的特性
| Core Architecture | ARM Cortex-M0+ |
| Core Width | 32-bit |
| 最大クロック周波数 | 48 MHz |
| Program Memory Size | 8 KB (8K x 8) Flash |
| RAM Size | 2 KB |
| パッケージ | 24-QFN (4x4 mm) |
| 動作温度範囲 | -40C to +105C |
| Active Current (Run) | 50 uA/MHz (typical, ultra-low-power run mode) |
| Connectivity | Low-power UART |
| Timers | 6-bit timer/PWM (and additional low-power timer per Kinetis KL03 family) |
| DMA Channels | 4 |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Series | Kinetis KL03 (Kinetis L series, KL0x subfamily) |
| Other Package Options in Family | 1.6 x 2.0 mm WLCSP (other orderable variants) |
MKL03Z8VFK4 ピン構成
| ピン 1 | VSS — Ground reference |
| ピン 2 | PTA0 — General purpose I/O / peripheral function |
| ピン 3 | PTA1 — General purpose I/O / peripheral function |
| ピン 4 | PTA2 — General purpose I/O / peripheral function |
| ピン 5 | PTA3 — General purpose I/O / peripheral function |
| ピン 6 | PTA4 — General purpose I/O / peripheral function |
| ピン 7 | VDD — Supply voltage input |
| ピン 8 | VSS — Ground reference |
| ピン 9 | PTB0 — General purpose I/O / peripheral function |
| ピン 10 | PTB1 — General purpose I/O / peripheral function |
| ピン 11 | PTB2 — General purpose I/O / peripheral function |
| ピン 12 | PTB3 — General purpose I/O / peripheral function |
| ピン 13 | PTB4 — General purpose I/O / peripheral function |
| ピン 14 | PTB5 — General purpose I/O / peripheral function |
| ピン 15 | PTC0 — General purpose I/O / peripheral function |
| ピン 16 | PTC1 — General purpose I/O / peripheral function |
| ピン 17 | PTC2 — General purpose I/O / peripheral function |
| ピン 18 | PTC3 — General purpose I/O / peripheral function |
| ピン 19 | PTC4 — General purpose I/O / peripheral function |
| ピン 20 | CMP0_OUT — Comparator output / I/O |
| ピン 21 | RESET_b — External reset pin (active low) |
| ピン 22 | SWDIO — Serial Wire Debug I/O |
| ピン 23 | SWCLK — Serial Wire Debug clock |
| ピン 24 | NC — Not connected (per Kinetis KL03 24-QFN datasheet pad layout) |
主な用途
MKL03Z8VFK4 の用途: 7 件s: Wearable Fitness Bands and Activity Trackers, IoT Sensor Endpoints and Wireless Nodes, Low-Power Remote Controls, Smart Metering Endpoints and Utility Sensors, Small Consumer Appliance Control, Industrial Sensor Transmitters, RFID and NFC Tag Companion Controllers.
Wearable Fitness Bands and Activity Trackers
The MKL03Z8VFK4's combination of 48 MHz Cortex-M0+ compute, ~50 uA/MHz active current, 2 KB SRAM retention, and 4x4 mm QFN footprint makes it well suited to wrist-worn fitness trackers. Its low-leakage stop mode keeps battery drain below the quiescent of an accelerometer while the core is halted, yet the Cortex-M0+ can wake within microseconds to service BLE events through a companion radio. In a typical design the MKL03Z8VFK4 reads a 3-axis MEMS accelerometer via I2C, drives a small OLED or LED matrix for heart-rate indication, and packages sensor data into a 1 KB ring buffer inside RAM before radio transmission - all within the 8 KB Flash envelope of this device.
おすすめ
IoT Sensor Endpoints and Wireless Nodes
For battery-powered IoT sensor nodes such as wireless environmental monitors or asset trackers, the MKL03Z8VFK4 provides just enough Flash and RAM for a small RTOS-less control loop while drawing ~50 uA/MHz in active mode. The 4-channel DMA lets the core stay asleep while the peripherals stream data into SRAM, and the ultra-low-power stop modes allow months of operation from a coin cell. A typical 24-QFN layout pairs the MKL03Z8VFK4 with a sub-GHz transceiver over SPI, where the KL03 acts as the host MCU plus low-power supervisory controller.
おすすめ
Low-Power Remote Controls
Battery-life requirements in TV remotes, garage-door keyfobs and BLE beacons are driven by sleep current rather than active compute. The MKL03Z8VFK4 keeps the Cortex-M0+ core in deep-sleep between user button presses, with the low-power timer providing the wake source without external glue logic. The 24-QFN 4x4 mm footprint fits behind a single AAA-cell battery PCB, and 8 KB Flash holds a small IR or RF protocol stack plus device firmware update bootloader. The low-power UART supports direct firmware flashing in production without an external debug probe.
おすすめ
Smart Metering Endpoints and Utility Sensors
Smart electricity, water or gas metering endpoints demand 10+ year battery life and reliable ultra-low-power operation. The MKL03Z8VFK4's stop-mode current and 8 KB of Flash for metering firmware (with room for secure boot) slot into residential or industrial smart meter architectures. The 24-QFN package eases conformal-coated PCB layouts, and the Cortex-M0+ deterministic interrupt latency supports precise metering timebases. Production calibrations and signed firmware updates fit within the 8 KB Flash budget alongside the metering application code.
おすすめ
Small Consumer Appliance Control
Compact consumer appliances such as electric toothbrushes, shavers and personal-care devices require a tiny MCU footprint with enough headroom for motor control and battery charging algorithms. The MKL03Z8VFK4's 48 MHz Cortex-M0+ can handle brushed DC motor PWM, ADC battery monitoring, and user-interface button decoding without an external IC. The 24-QFN 4x4 mm package fits inside toothbrush handles, and the part's low-power modes keep quiescent drain below the battery self-discharge rate during shelf life.
おすすめ
Industrial Sensor Transmitters
Industrial 4-20 mA loop-powered sensor transmitters and field-instrument nodes benefit from the MKL03Z8VFK4's small footprint, deterministic Cortex-M0+ performance, and ultra-low active current, all of which reduce loop-current burden on the field wiring. The 8 KB Flash holds a small signal-conditioning and HART or IO-Link protocol stack, while the 2 KB SRAM buffers digitized sensor data before bus transmission. The -40C to +105C operating temperature range covers most process-industry environments and the 24-QFN package eases conformal-coated PCB layouts.
おすすめ
RFID and NFC Tag Companion Controllers
In passive or semi-passive RFID/NFC systems, an MKL03Z8VFK4 can serve as a tiny host controller that manages energy harvesting, sensor reads and tag authentication before forwarding over the NFC link. The Cortex-M0+ core, 8 KB Flash and 2 KB SRAM deliver cryptographic primitives without bloating the BOM, while the 50 uA/MHz active current keeps harvested-energy budgets realistic. Its compact 24-QFN 4x4 mm footprint lets it fit alongside an NFC front-end IC in tight smart-card or inlay form factors.
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: MKL03Z8VFK4 — 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 | MKL02Z16VFG4 | MKL04Z32VFM4 | MKL26Z128VMC4 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 24-QFN (4x4 mm) | 24-QFN (4x4 mm) - same | 16-QFN (3x3 mm) | 24-QFN (4x4 mm) - same | QFN-48 (KL26 family - larger package) |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash | 8 KB | 32 KB | 16 KB | 32 KB | 128 KB |
| RAM | 2 KB | 2 KB | 2 KB | 4 KB | 16 KB |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant |
主な差別化要因
- Smallest 24-QFN 4x4 mm footprint within the Kinetis KL03 family （vs MKL03Z32VFK4)
- Lowest active power (~50 uA/MHz) in the Kinetis L KL0x family （vs MKL04Z32VFM4)
- Direct NXP family drop-in for legacy 8-bit designs （vs MKL02Z16VFG4)
設計ノート
Estimated: at 48 MHz active mode, the MKL03Z8VFK4 draws ~50 uA/MHz (per the Kinetis KL03 family datasheet). For a sensor node cycling between 1 ms active wake-ups every second, average current is dominated by wake-time rather than active current - keep the Cortex-M0+ in stop mode with the low-power timer providing wake cadence to extend coin-cell life into multi-year territory. Always populate the VDD decoupling as 100 nF + 1 uF ceramic placed within 2 mm of the pins.
Use a 4-layer PCB with a continuous ground plane under the 24-QFN (4x4 mm) thermal pad to maximize heat spreading and to short the on-chip ground return to PCB ground. Place the 32.768 kHz crystal within 2-3 mm of the EXTAL/XTAL pins and guard the traces with a ground ring to minimize high-impedance pickup. The exposed thermal pad must be soldered; do not leave it floating on the Kinetis KL0x family.
When routing SWDIO and SWCLK traces, keep them short (<50 mm) and length-matched to within 1-2 mm. Add a 100 ohm series resistor or ferrite bead close to the debug header if long flying leads are used for production programming, to suppress ringing during hot-plug events. The MKL03Z8VFK4 RESET_b pin is internally pulled; nevertheless add an external 10 kohm pull-up and 100 nF capacitor for production robustness.
Engineers often underestimate the Kinetis KL0x low-power stop-mode entry sequence: clearing the ACK isolation flag and disabling the ADC before WFI is mandatory to achieve quiescent currents in the microamp range. Locked Flash security bytes, if configured carelessly, can brick the part on mass production programming errors, and the recovery requires the NXP back-door key. Always lock security bytes as a final step in production programming, after verifying firmware runs correctly unlocked.
コンプライアンス情報
RoHS and REACH compliance from NXP and DigiKey product page. Not AEC-Q100 qualified - select AEC-Q100 Kinetis variants for automotive applications. Halogen-free status not stated in provided data; flagged as unknown per Data Authenticity Rules.