MKL15Z32VFT4 - 48MHz Cortex-M0+ 32KB Flash MCU | NXP
MPN: MKL15Z32VFT4 ✓ Hoạt độngMKL15Z32VFT4 Tóm tắt
What is a Kinetis KL1x microcontroller? The Kinetis KL1x is NXP's general-purpose ultra-low-power MCU family that builds on the KL0x family by adding more memory, communication peripherals, and analog options. The MKL15Z32VFT4 sits in this hierarchy as: microcontroller -> 32-bit MCU -> ARM Cortex-M0+ MCU -> Kinetis family -> KL1x sub-family -> KL15 sub-sub-family. The Cortex-M0+ core itself is the smallest, most energy-efficient ARM core, designed for cost-sensitive embedded applications where deterministic low power matters more than raw performance.
Key features include an operating voltage range of 1.71V to 3.6V, an industrial temperature range of -40C to +105C, a 12-bit ADC, multiple serial interfaces, low-power operating modes with sub-uA sleep currents, and an integrated 32KB flash memory array. The device also integrates a 16-bit SAR ADC, comparators, and a flexible low-power timer, making it suitable for battery-powered sensor products.
Architecturally, the MKL15Z32VFT4 leverages the Cortex-M0+ core's two-stage pipeline and single-cycle I/O access, paired with NXP's low-leakage process technology and an integrated voltage regulator. The 48 MHz core clock delivers 0.93 DMIPS/MHz and supports both Thumb and Thumb-2 instruction subsets. The chip integrates up to 40 GPIO, multiple DMA channels, and a peripheral crossbar for flexible signal routing.
Typical applications include wearable health monitors, battery-powered IoT sensor nodes, low-end consumer electronics, and industrial control nodes where energy harvesting or coin-cell operation is desired. The exposed thermal pad on the QFN package improves dissipation for sustained 48 MHz operation.
When designing with this part, pay attention to the exposed pad (EP) connection to the ground plane for thermal and electrical performance. Use NXP's Kinetis Design Studio or MCUXpresso toolchain for firmware development, and ensure the brown-out and low-voltage detect settings match the battery chemistry profile.
This page synthesizes distributor pricing, drop-in alternatives from the same Kinetis family, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho MKL15Z32VFT4 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MKL15Z32VFT4 (cùng hình factor và footprint) — khác nhau ở Operating Supply Voltage, Operating Temperature Range, Program Memory Size, RAM Size.
MKL15Z64VFT4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MKL15Z128VFT4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MKL15Z32VFT4R
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MKL16Z32VFT4
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MKL24Z32VFT4
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MKL15Z32VFT4 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M0+ |
| Core Architecture | ARM 32-bit |
| Tần số xung maksimum | 48 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 4 KB |
| Điện áp cung cấp hoạt động | 1.71 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +105 C |
| ADC Resolution | 12-bit |
| ADC | 16-bit (Sigma-Delta) |
| Number of I/Os | 40 |
| Hộp | 48-QFN (7x7 mm) with exposed pad |
| Package Code | HVQCCN (QFN-EP-48) |
| Kiểu lắp đặt | Surface Mount |
| Series | Kinetis KL1 |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 |
Cấu hình chân MKL15Z32VFT4
| Chân 1 | PTA0 — General purpose I/O / SWD clock |
| Chân 2 | PTA1 — General purpose I/O / SWD I/O |
| Chân 3 | PTA2 — General purpose I/O |
| Chân 4 | PTA3 — General purpose I/O |
| Chân 5 | PTA4 — General purpose I/O |
| Chân 6 | PTA5 — General purpose I/O |
| Chân 7 | PTA6 — General purpose I/O |
| Chân 8 | PTA7 — General purpose I/O |
| Chân 9 | PTB0 — General purpose I/O / ADC0_SE4 |
| Chân 10 | PTB1 — General purpose I/O / ADC0_SE5 |
| Chân 11 | PTB2 — General purpose I/O / ADC0_SE6 |
| Chân 12 | PTB3 — General purpose I/O / ADC0_SE7 |
| Chân 13 | PTB4 — General purpose I/O |
| Chân 14 | PTB5 — General purpose I/O |
| Chân 15 | PTB6 — General purpose I/O |
| Chân 16 | PTB7 — General purpose I/O |
| Chân 17 | PTC0 — General purpose I/O |
| Chân 18 | PTC1 — General purpose I/O |
| Chân 19 | PTC2 — General purpose I/O / TX |
| Chân 20 | PTC3 — General purpose I/O / RX |
| Chân 21 | PTC4 — General purpose I/O |
| Chân 22 | PTC5 — General purpose I/O |
| Chân 23 | PTC6 — General purpose I/O |
| Chân 24 | PTC7 — General purpose I/O |
| Chân 25 | PTD0 — General purpose I/O |
| Chân 26 | PTD1 — General purpose I/O |
| Chân 27 | PTD2 — General purpose I/O |
| Chân 28 | PTD3 — General purpose I/O |
| Chân 29 | PTD4 — General purpose I/O |
| Chân 30 | PTD5 — General purpose I/O |
| Chân 31 | PTD6 — General purpose I/O |
| Chân 32 | PTD7 — General purpose I/O |
| Chân 33 | PTE0 — General purpose I/O |
| Chân 34 | PTE1 — General purpose I/O |
| Chân 35 | PTE2 — General purpose I/O |
| Chân 36 | PTE3 — General purpose I/O |
| Chân 37 | PTE4 — General purpose I/O |
| Chân 38 | PTE5 — General purpose I/O |
| Chân 39 | PTE6 — General purpose I/O |
| Chân 40 | PTE7 — General purpose I/O |
| Chân 41 | VSS — Ground |
| Chân 42 | VDD — Supply voltage |
| Chân 43 | VOUT — Internal regulator output (1.2V core) |
| Chân 44 | VSS — Ground |
| Chân 45 | XTAL32K — 32 kHz crystal input |
| Chân 46 | EXTAL32K — 32 kHz crystal output |
| Chân 47 | XTAL — High-frequency crystal input |
| Chân 48 | EXTAL — High-frequency crystal output |
Ứng dụng tiêu biểu
MKL15Z32VFT4 phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Wearable Health Monitor, Industrial Sensor Transmitter, Smart Home Edge Node, Consumer Electronics Remote Control, Electronic Shelf Label (ESL) Controller.
Battery-Powered IoT Sensor Node
The MKL15Z32VFT4 fits battery-powered IoT sensor nodes because its 1.71V to 3.6V supply range works directly from a single Li-ion or 3V coin cell, and its Cortex-M0+ core combined with multiple low-power modes delivers sub-uA sleep currents. The 4 KB SRAM buffers sensor data while the 32 KB flash stores the application and a small wireless protocol stack. The 12-bit ADC integrates directly with analog sensors (temperature, light, gas), and the integrated DMA reduces wake-time overhead. Placed between the battery and the radio module (e.g., NXP KW01 or external transceiver), the MKL15Z32VFT4 samples, processes, and only wakes the radio for transmissions, extending battery life to multiple years.
Được đề xuất
Wearable Health Monitor
The MKL15Z32VFT4 suits wearable health monitors due to its compact 7x7 mm QFN package, low-power operating modes, and 12-bit ADC for biomedical analog signal conditioning. The device's 1.71V minimum supply supports direct operation from a 3V coin cell without a boost converter, reducing BOM. The Cortex-M0+ core at 48 MHz provides enough headroom to run algorithms such as heart-rate extraction or step counting, while consuming less than 1 mA active. The exposed thermal pad aids heat dissipation during sustained operation, important when packaged in a sealed wearable enclosure.
Được đề xuất
Industrial Sensor Transmitter
The MKL15Z32VFT4 is well suited for industrial sensor transmitters operating across the -40C to +105C industrial temperature range. The wide 1.71V to 3.6V supply accommodates 24V industrial bus rails with a simple LDO drop-down, and the 12-bit ADC delivers adequate resolution for process-variable transmitters (pressure, flow, level). The flexible timer/PWM peripherals drive 4-20 mA current loops or HART modems. Placed in a sealed field instrument, the MCU handles self-calibration, sensor linearization, and diagnostics while consuming less than 2 mA active current.
Được đề xuất
Smart Home Edge Node
The MKL15Z32VFT4 fits smart-home edge nodes such as smart thermostats, door/window sensors, and low-end appliances. Its 32 KB flash comfortably holds ZigBee or Thread MAC/APS layers plus application code, and the 40 GPIO drive LED arrays, keypads, and relays. The low-power sleep modes enable multi-year battery operation for door/window contact sensors, while mains-powered smart thermostats use the full 48 MHz performance. The Cortex-M0+ core's deterministic interrupt latency ensures responsive user-interface handling.
Được đề xuất
Consumer Electronics Remote Control
The MKL15Z32VFT4 is ideal for consumer remote controls thanks to its low cost, ultra-low sleep current (extending battery life to multiple years), and integrated IR timer/PWM capable of generating 38 kHz carrier signals for IR transmission. The 32 KB flash holds application code and IR code libraries, while 4 KB SRAM is sufficient for button-debounce buffering. The 12-bit ADC supports battery-voltage monitoring via a simple voltage divider. The 7x7 mm QFN fits inside compact remote-control housings.
Được đề xuất
Electronic Shelf Label (ESL) Controller
The MKL15Z32VFT4 fits ESL base-station controllers or display-driver boards because of its low power consumption, 12-bit ADC for battery monitoring, and adequate GPIO to drive parallel display interfaces. Operating from 3V coin cells with sub-uA sleep currents, the device wakes periodically to update display content via sub-GHz radio. The 32 KB flash holds the wireless protocol stack and content-rendering logic, while the Cortex-M0+ core handles SPI display refresh with DMA offload for low CPU utilization.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MKL15Z32VFT4 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MKL15Z64VFT4 | MKL15Z128VFT4 | MKL16Z32VFT4 | MKL24Z32VFT4 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-QFN (7x7) EP | 48-QFN (7x7) EP - same | 48-QFN (7x7) EP - same | 48-QFN (7x7) EP - same | 48-QFN (7x7) EP - same |
| Flash Memory | 32 KB | 64 KB | 128 KB | 32 KB | 32 KB |
| SRAM | 4 KB | 4 KB | 16 KB | 4 KB | 4 KB |
| Core Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Operating Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
| USB / Segment LCD | No | No | No | Yes (Segment LCD) | Yes (USB + LCD) |
Bảo phân biệt quan trọng
- Lowest cost option within KL1x 48-QFN family (vsMKL15Z64VFT4)
- Lower power than KL2x USB-equipped siblings (vsMKL24Z32VFT4)
- Identical footprint as MKL15Z128VFT4 enables seamless memory upgrade (vsMKL15Z128VFT4)
Ghi chú thiết kế
Estimated: at VDD=3.3 V and Cortex-M0+ core active at 48 MHz, the MKL15Z32VFT4 draws approximately 6-8 mA active current; in VLLS0 sleep it drops below 1 uA. Designers should place a 4.7 uF decoupling capacitor close to VDD pin 42 and a 0.1 uF decoupling capacitor on each adjacent VDD/VSS pair. The internal voltage regulator (VOUT pin 43) requires a 2.2 uF external capacitor for stability. For coin-cell designs, configure the Low-Voltage Detect (LVD) to interrupt before the battery drops below 2.0 V to prevent flash corruption.
The QFN-48 package's exposed thermal pad (pin 49) MUST be soldered to a continuous ground plane for both electrical and thermal performance. Use a 5x5 array of thermal vias (0.3 mm drill, 0.5 mm pitch) connecting the EP to an inner ground plane. Keep high-speed traces away from the analog VREF/ADC pins, and route the XTAL/EXTAL traces symmetrically with ground shielding to minimize EMI. The 48-QFN (7x7) land pattern follows the standard QFN-48 JEITA recommendation with 0.5 mm pitch.
Do not leave the MKL15Z32VFT4 RESET pin floating - tie to VDD via a 10 kohm pull-up with a 100 nF decoupling capacitor for manual reset. Avoid using the SWD pins (PTA0/PTA1) as GPIO without disabling SWD in the FOPT register, or you will lose debug access. The 32 kHz crystal (XTAL32K/EXTAL32K) requires specific load capacitors per the crystal manufacturer's datasheet - typical values are 6-10 pF. Do not exceed the 3.6 V absolute maximum on any I/O pin, or latchup may occur.
Thông tin tuân thủ
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified - this is a general-purpose/consumer-grade MCU, not automotive grade. Lead-free and halogen-free per NXP product specifications.
