MKL26Z32VLH4 - Kinetis KL26 48MHz Cortex-M0+ MCU, 32KB Flash, USB | NXP
MPN： MKL26Z32VLH4 ✓ 啟用中MKL26Z32VLH4 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. Within the broader semiconductor taxonomy, the MKL26Z32VLH4 sits in the hierarchy MCU -> 32-bit MCU -> ARM Cortex-M MCU -> low-power MCU -> Kinetis family. The Cortex-M0+ core is the smallest and most energy-efficient member of the ARM Cortex-M family, designed for cost-sensitive embedded applications where deterministic interrupt response and low active/idle power matter more than raw compute.
Key features include 32 KB flash, 4 KB SRAM, a full-speed USB 2.0 controller with on-chip transceiver, a low-power ARM Cortex-M0+ core, segment LCD controller (SLCD) option on related variants, multiple low-power modes (run, wait, stop, VLPRMPVLLS3), and a flexible low-power peripheral set including 12-bit ADC, 16-bit timers, LPUART, I2C, SPI, and USB. The device also integrates an internal 32 kHz and 8 MHz reference, simplifying BOM and supporting crystal-less USB operation in the KL2x sub-family.
Architecturally, the KL26 leverages Freescale/NXP's low-leakage process and a tightly coupled Cortex-M0+ pipeline with a single-cycle I/O port, achieving CoreMark/mW efficiency that puts it ahead of many 8-bit MCUs while retaining 32-bit throughput. The 48 MHz core mark, combined with hardware multiply/divide, gives roughly 0.93 DMIPS/MHz.
Typical applications include USB HID peripherals (keyboards, mice, remotes), wearable fitness bands, low-cost data loggers, sensor hubs, and battery-powered IoT end nodes. The on-chip USB 2.0 FS controller eliminates external PHY cost, and the 32 KB flash is adequate for HID class drivers, basic USB stacks, and small application logic.
When designing, note that the KL26 requires NXP's Kinetis Design Studio or MCUXpresso toolchain; an external decoupling scheme of 0.1 uF + bulk VHF per VDD/VREF domain is recommended, and the USB DP/DM traces must be 90 ohm differential matched.
This page synthesizes distributor pricing, drop-in pin-compatible Kinetis alternatives, and practical design notes beyond the manufacturer datasheet to help engineers make faster, more confident sourcing decisions.
直接替換替代品，適用於 MKL26Z32VLH4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MKL26Z32VLH4 （相同外形與佔位） — 差異在於 ADC, Core, Package, Communication Interfaces, Data Bus Width.
MKL26Z64VLH4
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MKL16Z32VLH4
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MKL24Z32VLH4
✅ 直接替換📋 參考替代品（不在目錄中）
MKL14Z32VLH4
✅ 直接替換📋 參考替代品（不在目錄中）
MKL26Z32VLH4 最大額定值與電氣特性
| Core | ARM Cortex-M0+ |
| Core Architecture | ARM 32-bit |
| 最大時脈頻率 | 48 MHz |
| Program Flash Memory | 32 KB (32K x 8) |
| RAM | 4 KB |
| USB Interface | USB 2.0 Full-Speed (OTG or Device, crystal-less option) |
| 封裝 | 64-pin LQFP (10 x 10 mm) |
| Pin/Package Suffix | VLH4 (LQFP-64) |
| Operating Voltage Range | 1.71 V to 3.6 V |
| 工作溫度範圍 | -40 C to +105 C |
| Low-Power Modes | Wait, Stop, VLPR, VLPW, VLPS, LLS, VLLS3 |
| ADC | 16-channel, 12-bit SAR |
| Timers | 2x 16-bit low-power timers; RTC |
| Communication Interfaces | LPUART, UART, SPI, I2C, USB |
| DMA Channels | 4 |
| GPIOs | Up to 51 |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
MKL26Z32VLH4 腳位配置
| 腳位 1 | PTE0 — Port E bit 0; IRQ, ADC, TPM |
| 腳位 2 | PTE1 — Port E bit 1; IRQ, ADC, TPM |
| 腳位 3 | PTE2 — Port E bit 2; SPI, ADC |
| 腳位 4 | PTE3 — Port E bit 3; SPI, ADC |
| 腳位 5 | PTE4 — Port E bit 4; SPI, IRQ |
| 腳位 6 | PTE5 — Port E bit 5; SPI, IRQ |
| 腳位 7 | PTE6 — Port E bit 6; LPUART, I2C |
| 腳位 8 | VDD — Digital supply voltage |
| 腳位 9 | VSS — Ground |
| 腳位 10 | USB_DP — USB D+ data line |
| 腳位 11 | USB_DM — USB D- data line |
| 腳位 12 | VREGIN — USB voltage regulator input |
| 腳位 13 | VOUT33 — USB voltage regulator output (3.3 V) |
| 腳位 14 | PTA0 — Port A bit 0; SWD CLK, IRQ |
| 腳位 15 | PTA1 — Port A bit 1; SWD DIO, IRQ |
| 腳位 16 | PTA2 — Port A bit 2; UART, TPM |
| 腳位 17 | PTA3 — Port A bit 3; UART, TPM |
| 腳位 18 | PTA4 — Port A bit 4; I2C, IRQ |
| 腳位 19 | PTA5 — Port A bit 5; I2C, IRQ |
| 腳位 20 | PTA6 — Port A bit 6; LPUART, IRQ |
| 腳位 21 | PTA7 — Port A bit 7; LPUART, IRQ |
| 腳位 22 | PTB0 — Port B bit 0; ADC, IRQ |
| 腳位 23 | PTB1 — Port B bit 1; ADC, IRQ |
| 腳位 24 | PTB2 — Port B bit 2; ADC, I2C |
| 腳位 25 | PTB3 — Port B bit 3; ADC, I2C |
| 腳位 26 | PTB4 — Port B bit 4; SPI, IRQ |
| 腳位 27 | PTB5 — Port B bit 5; SPI, IRQ |
| 腳位 28 | PTB6 — Port B bit 6; SPI, TPM |
| 腳位 29 | PTB7 — Port B bit 7; SPI, TPM |
| 腳位 30 | PTC0 — Port C bit 0; ADC, IRQ |
| 腳位 31 | PTC1 — Port C bit 1; ADC, IRQ |
| 腳位 32 | PTC2 — Port C bit 2; ADC, TPM |
| 腳位 33 | PTC3 — Port C bit 3; ADC, TPM |
| 腳位 34 | PTC4 — Port C bit 4; LPUART, IRQ |
| 腳位 35 | PTC5 — Port C bit 5; LPUART, IRQ |
| 腳位 36 | PTC6 — Port C bit 6; LPUART, TPM |
| 腳位 37 | PTC7 — Port C bit 7; LPUART, TPM |
| 腳位 38 | PTD0 — Port D bit 0; SPI, IRQ |
| 腳位 39 | PTD1 — Port D bit 1; SPI, IRQ |
| 腳位 40 | PTD2 — Port D bit 2; SPI, TPM |
| 腳位 41 | PTD3 — Port D bit 3; SPI, TPM |
| 腳位 42 | PTD4 — Port D bit 4; I2C, IRQ |
| 腳位 43 | PTD5 — Port D bit 5; I2C, IRQ |
| 腳位 44 | PTD6 — Port D bit 6; UART, TPM |
| 腳位 45 | PTD7 — Port D bit 7; UART, TPM |
| 腳位 46 | PTE16 — Port E bit 16; ADC, IRQ |
| 腳位 47 | PTE17 — Port E bit 17; ADC, IRQ |
| 腳位 48 | PTE18 — Port E bit 18; SPI, IRQ |
| 腳位 49 | PTE19 — Port E bit 19; SPI, IRQ |
| 腳位 50 | PTE20 — Port E bit 20; TPM |
| 腳位 51 | PTE21 — Port E bit 21; TPM |
| 腳位 52 | PTE22 — Port E bit 22; LPUART |
| 腳位 53 | PTE23 — Port E bit 23; LPUART |
| 腳位 54 | PTA8 — Port A bit 8; IRQ |
| 腳位 55 | PTA9 — Port A bit 9; IRQ |
| 腳位 56 | PTA10 — Port A bit 10; IRQ |
| 腳位 57 | PTA11 — Port A bit 11; IRQ |
| 腳位 58 | PTA12 — Port A bit 12; IRQ |
| 腳位 59 | PTA13 — Port A bit 13; IRQ |
| 腳位 60 | PTA14 — Port A bit 14; IRQ |
| 腳位 61 | PTA15 — Port A bit 15; IRQ |
| 腳位 62 | PTA16 — Port A bit 16; SPI, IRQ |
| 腳位 63 | PTA17 — Port A bit 17; SPI, IRQ |
| 腳位 64 | PTB8 — Port B bit 8; LPUART, IRQ |
典型應用
MKL26Z32VLH4 適用於 7 應用s: USB HID Peripherals (Keyboard, Mouse, Remote), Wearable Fitness Bands, Low-Cost Sensor Hubs and Data Loggers, USB Charging Cradles and Docks, Industrial HMI Panels, Battery-Powered IoT Edge Nodes, Educational and Maker Electronics.
USB HID Peripherals (Keyboard, Mouse, Remote)
The MKL26Z32VLH4's integrated USB 2.0 full-speed controller with on-chip PHY makes it a direct fit for USB HID class devices such as keyboards, mice, game controllers, and IR remotes. The 32 KB flash is sufficient to run the USB HID stack plus basic HID report descriptors and keymaps; the Cortex-M0+ at 48 MHz easily handles HID polling at 1 kHz with room for debounce and LED handling. Compared with MCUs that need an external USB PHY, the KL26 saves roughly $0.30-0.50 BOM and 4-6 mm board area. Designers typically route USB DP/DM as a 90 ohm differential pair and place a 0.1 uF + 4.7 uF decoupling network within 5 mm of VDD/VREF.
推薦
Wearable Fitness Bands
For wearable fitness bands, the MKL26Z32VLH4's low-power modes (VLPR at <100 uA/MHz, VLLS3 standby sub-uA) and 1.71-3.6 V operation allow direct Li-ion or coin-cell powering. The Cortex-M0+ core at 48 MHz can sample a 3-axis accelerometer via I2C, drive an SPI OLED, and run step-count algorithms within tight power budgets. The 4 KB RAM is adequate for short sensor FIFO buffering, and the USB interface doubles as a charging and data-sync port, eliminating a separate charging IC. Trade-off: at 32 KB flash, designers must use lightweight RTOS or bare-metal; the MKL26Z64VLH4 drop-in upgrade doubles flash with no PCB rework if more headroom is needed.
推薦
Low-Cost Sensor Hubs and Data Loggers
The MKL26Z32VLH4 serves well as a USB-tethered sensor hub, aggregating data from SPI/I2C sensors and streaming over USB CDC or HID to a host PC. Its 4-channel DMA offloads repetitive byte transfers, freeing the Cortex-M0+ core for time-stamping and threshold events. The 12-bit SAR ADC with up to 16 single-ended channels supports analog front-ends such as thermistors or load cells. A typical design reads sensors at 100 Hz, batches into 1 KB packets, and pushes over USB at FS rates - within both flash and MIPS budgets. Compared with 8-bit MCUs, the KL26 cuts code size 30-40% and adds deterministic 32-bit math for kalm filtering.
推薦
USB Charging Cradles and Docks
In USB charging cradles and dock accessories, the MKL26Z32VLH4 acts as a USB device that negotiates charge current via USB BC 1.2 or proprietary protocols. The crystal-less USB option removes an external 12 MHz or 48 MHz crystal, reducing BOM and PCB area. The 32 KB flash supports USB stack plus application logic for battery authentication or LED status. The 51 GPIO lines can drive indicator LEDs, button input, and a charging FET. Trade-off: a charging cradle may not need the full Cortex-M0+ compute; a smaller MKL04Z can suffice, but the MKL26 is preferred when future firmware growth is anticipated.
推薦
Industrial HMI Panels
For low-cost industrial HMI panels and operator interfaces, the MKL26Z32VLH4 drives character or segment LCDs, reads keypad matrices, and communicates to a master controller via RS-485 or CAN-isolated UART. The wide operating temperature range (-40 C to +105 C) is suitable for factory environments, and the 64-pin LQFP exposes enough GPIO to drive a 4x4 keypad plus 8 LEDs plus LCD. Designers typically pair the KL26 with an external RS-485 transceiver and a 5 V tolerant isolator. Compared with discrete logic designs, the KL26 cuts part count by 60% and adds firmware-driven diagnostics.
推薦
Battery-Powered IoT Edge Nodes
In battery-powered IoT edge nodes (BLE/Wi-Fi sensor endpoints), the MKL26Z32VLH4 functions as the host MCU that drives a wireless co-processor via SPI/UART and manages sensors, power gating, and housekeeping. Its low-power modes (VLPS, LLS, VLLS3) extend coin-cell life to multi-year timeframes; the 32 KB flash fits BLE peripheral stacks or light Wi-Fi AT command logic. Compared with 8-bit MCUs at the same MIPS, the KL26 typically saves 20-40% energy per task due to single-cycle I/O and hardware multiply. Trade-off: very low duty-cycle nodes (<0.1%) may benefit from smaller MCUs, but the KL26's USB-charging option remains attractive for rechargeable nodes.
推薦
Educational and Maker Electronics
The MKL26Z32VLH4, paired with the FRDM-KL26Z development board, is widely adopted in university embedded courses and maker projects because of its low cost, USB debugging, Arduino-friendly headers, and the free MCUXpresso IDE. The Cortex-M0+ introduces students to 32-bit ARM architectures without overwhelming complexity, while Kinetis peripheral libraries abstract low-level register access. Compared with Arduino Uno's ATmega328P, the KL26 offers 4x the flash, USB on-board, and a real IDE toolchain path. The 32 KB flash is suitable for typical semester projects (line-following robots, sensor dashboards, simple games).
推薦
推薦產品摘要
工程參考資料，適用於 MKL26Z32VLH4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MKL26Z64VLH4 | MKL16Z32VLH4 | MKL24Z32VLH4 | MKL14Z32VLH4 |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-pin LQFP (10x10 mm) | 64-pin LQFP (10x10 mm) - same | 64-pin LQFP (10x10 mm) - same | 64-pin LQFP (10x10 mm) - same | 64-pin LQFP (10x10 mm) - same |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Max Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Program Flash | 32 KB | 64 KB | 32 KB | 32 KB | 32 KB |
| USB Controller | USB 2.0 Full-Speed (with PHY) | USB 2.0 Full-Speed (with PHY) | No USB | No USB | No USB |
| Segment LCD Controller | No | No | No | Yes | No |
| RAM | 4 KB | 8 KB | 4 KB | 4 KB | 4 KB |
| 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 |
| Approx 1k+ Price (USD) | 2.98 | 3.40 | 2.75 | 3.10 | 2.60 |
主要差異化特點
- Integrated USB 2.0 Full-Speed with on-chip PHY (對比MKL16Z32VLH4)
- Crystal-less USB option in KL2x sub-family (對比Generic 48 MHz MCU)
- Segment LCD controller absent - choose KL24 for LCD designs (對比MKL24Z32VLH4)
- Cost-optimized 32 KB flash in 64-pin LQFP (對比MKL26Z128VLL4)
設計說明
Decouple VDD/VREF/VREGIN with a 0.1 uF ceramic cap placed within 5 mm of each pin, plus a 4.7 uF bulk near the IC. For USB operation, add a 10 uF tantalum on VREGIN and a ferrite bead to VOUT33 to suppress USB inrush transients. The KL26's internal voltage regulator supplies the core from VREGIN; ensure VREGIN <= 5.5 V to avoid regulator damage.
Route USB DP/DM as a 90 ohm differential pair with length matching within 150 mil. Place the 33 ohm series resistors on DP/DM close to the MCU. Keep DP/DM traces away from clock lines and high-current switching nodes. Add ESD protection diodes (e.g. USBLC6-2SC6) near the USB connector. Maintain a continuous ground plane under the KL26 and stitch with vias around the LQFP perimeter.
Estimated: at 48 MHz core clock, the KL26 typically dissipates ~25 mW active and <50 uA in VLLS3 mode. The 64-pin LQFP package has theta_JA around 60 C/W, so a 25 mW load produces ~1.5 C junction rise - no heatsink needed. In VLPR mode (4 MHz), active current drops to ~3 mA; in VLLS3, standby is sub-uA, suitable for coin-cell applications.
Do not omit the external 32.768 kHz crystal load capacitors (typically 12.5 pF) on XTAL32/EXTAL32 pins if RTC accuracy matters; otherwise use the internal reference. When enabling the internal USB regulator (VREGIN path), ensure VOUT33 is not loaded with >3 mA externally. For SWD debugging, keep the SWD_CLK and SWD_DIO traces < 50 mm and avoid stubs. Do not float unused GPIO to avoid leakage in low-power modes.
Place the KL26 such that the LQFP pin 1 dot/orientation matches the schematic. Keep the 32.768 kHz crystal traces short and symmetric. Route analog ADC inputs (PTA, PTB, PTC, PTE) away from digital switching lines and bypass each analog pin with 100 nF to VREFH when used. For USB VBUS sensing, the VREGIN pin doubles as a VBUS presence detector; route this signal cleanly to avoid false disconnect events.
合規資訊
RoHS compliant per NXP product page. Halogen-free per datasheet. AEC-Q100 not qualified - industrial / consumer grade. Lead-free reflow compatible.
