MKL27Z64VLH4 - Kinetis KL27 64KB Flash USB MCU | NXP
MPN： MKL27Z64VLH4 ✓ 啟用中MKL27Z64VLH4 概覽
Key specifications include 64KB program flash, 8KB SRAM, 48 MHz maximum CPU frequency, an integrated full-speed USB 2.0 device controller with crystal-less operation, multiple low-power modes (VLLS, VLLSx, LLS, HSRUN), 12-bit ADC, low-power UART/SPI/I2C peripherals, and a wide operating voltage range from 1.71V to 3.6V. The device targets portable, battery-powered, and USB-enabled embedded designs where power efficiency and integration matter.
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (flash/RAM), and programmable peripherals. The MKL27Z64VLH4 belongs to the Kinetis KL2x sub-family, which adds full-speed USB to the Kinetis KL1x ultra-low-power lineage. Within the taxonomy: MCU -> 32-bit MCU -> ARM Cortex-M0+ MCU -> Kinetis KL2x MCU -> USB-enabled ultra-low-power MCU.
The KL27 architecture couples an ARM Cortex-M0+ core (32-bit, single-cycle I/O access) with NXP's low-power peripherals and a flexible low-leakage wake-up unit. The integrated USB 2.0 full-speed device controller with on-chip 3.3V LDO and internal pull-ups removes the need for an external crystal and external USB transceiver, simplifying BOM and PCB area.
Typical applications include wearable fitness devices, USB HID peripherals, portable medical accessories, low-end consumer electronics, and IoT edge sensors. The combination of USB device, low power, and Cortex-M0+ efficiency makes it well suited for battery-powered products needing a wired USB interface for charging, configuration, or data transfer.
Design considerations: enable USB crystal-less operation by configuring the USB clock-recovery block; use the on-chip DC-DC converter for core supply; pay attention to decoupling capacitor placement near VDD and VOUT33 pins to ensure clean analog and digital rails.
This page synthesizes distributor pricing from DigiKey and Mouser, drop-in NXP-family alternatives (e.g., MKL27Z256VLH4 for higher flash), and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 MKL27Z64VLH4 — 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： MKL27Z64VLH4 （相同外形與佔位） — 差異在於 Package, Core Processor, Core Size, Flash Memory, Operating Temperature.
MKL27Z64VLH4R
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MKL27Z128VLH4
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MKL27Z256VLH4
✅ 直接替換📋 參考替代品（不在目錄中）
MKL27Z64VDA4
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MK30DX256VLK7
✅ 直接替換聯絡詢價
查看資料表 →MKL26Z128VMC4
✅ 直接替換聯絡詢價
查看資料表 →MKL27Z64VLH4 最大額定值與電氣特性
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Core Frequency | 48 MHz |
| Program Flash Memory | 64 KB |
| SRAM | 8 KB |
| 封裝 | 64-pin LQFP (10x10 mm) |
| 安裝類型 | Surface Mount |
| Supply Voltage (VDD) | 1.71 V to 3.6 V |
| USB Controller | USB 2.0 Full-Speed Device (crystal-less) |
| 工作溫度 | -40 C to +105 C |
| Low-Power Modes | VLLS, VLLSx, LLS, HSRUN |
| Communication Interfaces | UART, SPI, I2C, USB |
| RoHS 狀態 | Compliant |
MKL27Z64VLH4 腳位配置
| 腳位 1 | PTE0 — Port E bit 0 / TPM1_CH1 |
| 腳位 2 | PTE1 — Port E bit 1 / TPM1_CH0 |
| 腳位 3 | PTE2 — Port E bit 2 / ADC |
| 腳位 4 | VDD — MCU power supply 1.71V-3.6V |
| 腳位 5 | VSS — Ground |
| 腳位 6 | PTA0 — Port A bit 0 |
| 腳位 7 | PTA1 — Port A bit 1 |
| 腳位 8 | PTA2 — Port A bit 2 |
| 腳位 9 | PTA3 — Port A bit 3 / SWDIO |
| 腳位 10 | PTA4 — Port A bit 4 |
| 腳位 11 | PTA5 — Port A bit 5 / RESET_b |
| 腳位 12 | PTA6 — Port A bit 6 |
| 腳位 13 | PTA7 — Port A bit 7 |
| 腳位 14 | PTB0 — Port B bit 0 / LLWU_P0 |
| 腳位 15 | PTB1 — Port B bit 1 |
| 腳位 16 | PTB2 — Port B bit 2 / I2C0_SCL |
| 腳位 17 | PTB3 — Port B bit 3 / I2C0_SDA |
| 腳位 18 | PTB4 — Port B bit 4 |
| 腳位 19 | PTB5 — Port B bit 5 |
| 腳位 20 | PTB6 — Port B bit 6 |
| 腳位 21 | PTB7 — Port B bit 7 |
| 腳位 22 | PTC0 — Port C bit 0 |
| 腳位 23 | PTC1 — Port C bit 1 |
| 腳位 24 | PTC2 — Port C bit 2 |
| 腳位 25 | PTC3 — Port C bit 3 |
| 腳位 26 | PTC4 — Port C bit 4 |
| 腳位 27 | PTC5 — Port C bit 5 |
| 腳位 28 | PTC6 — Port C bit 6 |
| 腳位 29 | PTC7 — Port C bit 7 |
| 腳位 30 | PTD0 — Port D bit 0 / SPI0_PCS0 |
| 腳位 31 | PTD1 — Port D bit 1 / SPI0_SCK |
| 腳位 32 | PTD2 — Port D bit 2 / SPI0_MOSI |
| 腳位 33 | PTD3 — Port D bit 3 / SPI0_MISO |
| 腳位 34 | PTD4 — Port D bit 4 |
| 腳位 35 | PTD5 — Port D bit 5 / TPM0_CH5 |
| 腳位 36 | PTD6 — Port D bit 6 |
| 腳位 37 | PTD7 — Port D bit 7 |
| 腳位 38 | USB_DP — USB D+ (full-speed device) |
| 腳位 39 | USB_DM — USB D- |
| 腳位 40 | VOUT33 — USB 3.3V LDO output |
| 腳位 41 | VREGIN — USB voltage regulator input |
| 腳位 42 | PTE16 — Port E bit 16 |
| 腳位 43 | PTE17 — Port E bit 17 |
| 腳位 44 | PTE18 — Port E bit 18 |
| 腳位 45 | PTE19 — Port E bit 19 |
| 腳位 46 | PTE20 — Port E bit 20 |
| 腳位 47 | PTE21 — Port E bit 21 |
| 腳位 48 | PTE22 — Port E bit 22 |
| 腳位 49 | PTE23 — Port E bit 23 |
| 腳位 50 | PTE24 — Port E bit 24 |
| 腳位 51 | PTE25 — Port E bit 25 |
| 腳位 52 | PTE26 — Port E bit 26 |
| 腳位 53 | PTE27 — Port E bit 27 |
| 腳位 54 | PTE28 — Port E bit 28 |
| 腳位 55 | PTE29 — Port E bit 29 |
| 腳位 56 | PTE30 — Port E bit 30 |
| 腳位 57 | PTE31 — Port E bit 31 |
| 腳位 58 | NC — Not connected (per datasheet) |
| 腳位 59 | NC — Not connected (per datasheet) |
| 腳位 60 | NC — Not connected (per datasheet) |
| 腳位 61 | NC — Not connected (per datasheet) |
| 腳位 62 | NC — Not connected (per datasheet) |
| 腳位 63 | NC — Not connected (per datasheet) |
| 腳位 64 | NC — Not connected (per datasheet) |
典型應用
MKL27Z64VLH4 適用於 7 應用s: Wearable Fitness Devices, USB HID Peripherals, Portable Medical Accessories, Industrial USB Sensor Nodes, USB Charging / Sync Cradles, IoT Edge / Wireless Sensor Tag, Consumer Remote Controls / Configuration Sticks.
Wearable Fitness Devices
Wearable fitness trackers and smart wristbands rely on the MKL27Z64VLH4's ultra-low-power ARM Cortex-M0+ core (48 MHz) and integrated USB 2.0 device controller with crystal-less operation. The KL27 family supports deep low-power states (VLLS, LLS) that drop system current well below typical Bluetooth beacon use cases, enabling weeks of battery life on small Li-ion coin cells. With 64 KB flash and 8 KB SRAM, the device can hold a USB charging stack plus application firmware for step counting, heart-rate logging, and USB HID sync to host PCs. Recommended peripherals: low-power accelerometer (e.g., MMA8451Q), single-cell Li-ion charger.
推薦
USB HID Peripherals
The MKL27Z64VLH4 is a natural fit for USB Human Interface Device (HID) peripherals - keyboards, mice, HID-based dongles, and Custom Vendor-class devices - because of its integrated full-speed USB 2.0 device controller with on-chip 3.3V LDO and clock-recovery for crystal-less operation. The 48 MHz Cortex-M0+ core is more than sufficient for HID report generation and embedded protocol stacks at 12 Mbps full-speed. The 64 KB flash holds standard USB HID stacks plus vendor firmware; the 8 KB SRAM is sufficient for HID reports and small protocol buffers. Drop-in upgrade paths include MKL27Z128VLH4 for richer devices.
推薦
Portable Medical Accessories
Portable medical accessories (USB battery chargers, low-cost glucose-meter docks, compact pulse-oximeter USB interfaces) benefit from the MKL27Z64VLH4's combination of full-speed USB device, Cortex-M0+ deterministic behavior, and -40 C to +105 C operating range. The integrated 12-bit ADC plus multiple low-power timer/capture peripherals can directly sample analog sensor inputs (e.g., photodiode via TIA). The 64 KB flash supports USB CDC-class firmware for safe data export; the 8 KB SRAM supports typical sensor-data buffering. NXP's quality program and RoHS compliance simplify regulatory submissions.
推薦
Industrial USB Sensor Nodes
Industrial low-cost USB sensor nodes (environmental monitors, USB-attached thermometer/logger bridges) use the MKL27Z64VLH4 for its -40 C to +105 C industrial temperature range and integrated full-speed USB device controller. The 48 MHz Cortex-M0+ is sufficient for periodic I2C sensor reads, local data buffering in 8 KB SRAM, and USB-CDC transmission to a host PC. Its wide 1.71 V to 3.6 V supply range lets the MCU run directly from a 3.6V Li-ion or regulated 3.3V industrial bus. The 64 KB flash holds a small protocol stack plus application code, with a migration path to MKL27Z128VLH4 if more code space is needed.
推薦
USB Charging / Sync Cradles
USB charging and synchronization cradles for portable consumer electronics leverage the MKL27Z64VLH4's crystal-less USB device controller and integrated 3.3V LDO to provide a single-MCU solution. The 64 KB flash holds USB charging logic, status-indicator timing, and simple user-interface state machines. The 48 MHz ARM Cortex-M0+ core efficiently manages USB enumeration, proprietary device-class protocols, and ADC-based cradle-temperature measurement. The LQFP-64 (10x10 mm) package footprint simplifies hand- or reflow-soldering, and NXP's long-term KL27 family support helps OEMs avoid end-of-life surprises.
推薦
IoT Edge / Wireless Sensor Tag
Low-power IoT edge nodes and wireless sensor tags benefit from the MKL27Z64VLH4's ultra-low-power VLLS/VLLSx deep-sleep modes and integrated full-speed USB device controller for tag-configuration, firmware-update, and battery-charging use cases. The 48 MHz Cortex-M0+ core can wake, sample, briefly process, and return to deep-sleep in well under a millisecond, supporting intermittent-operations duty cycles below 1%. The 64 KB flash accommodates simple 6LoWPAN, sub-GHz driver stubs, or BLE-via-USB firmware update binaries. The LQFP-64 footprint gives generous routing for sensor-edge PCB antenna placement.
推薦
Consumer Remote Controls / Configuration Sticks
Consumer remote controls, device-configurator sticks, and small USB command peripherals benefit from the MKL27Z64VLH4's USB device interface without requiring external USB transceivers or crystals, simplifying both BOM and PCB layout. The 48 MHz core handles USB HID-class generation, button-press decoding, and LED feedback, with 64 KB flash for product-specific scripts and 8 KB SRAM for HID report buffering. The MKL27Z64VLH4's wide 1.71 V to 3.6 V supply range supports direct Li-ion operation, while its -40 C to +105 C industrial temperature range handles indoor heating-ventilation ducts and outdoor enclosures.
推薦
推薦產品摘要
工程參考資料，適用於 MKL27Z64VLH4 — 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 | MKL27Z64VLH4R | MKL27Z128VLH4 | MKL27Z256VLH4 | MKL27Z64VDA4 | MK30DX256VLK7 | MKL26Z128VMC4 |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | MAPBGA-36 tray variant, similar LQFP-64 same die | LQFP-64 (10x10 mm) - same | MAPBGA-36 (BGA-36) alternative, KL26 family |
| Core Architecture | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M4 | ARM Cortex-M0+ |
| Core Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | Up to 100 MHz | 48 MHz |
| Program Flash | 64 KB | 64 KB | 128 KB | 256 KB | 64 KB | 256 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 16 KB | 32 KB | 8 KB | 128 KB | 16 KB |
| USB Controller | USB 2.0 Full-Speed Device (crystal-less) | Same USB 2.0 FS Device (crystal-less) | Same USB 2.0 FS Device (crystal-less) | Same USB 2.0 FS Device (crystal-less) | Same USB 2.0 FS Device (crystal-less) | USB 2.0 FS Device/Host/OTG (with PHY) | USB 2.0 FS Device/Host/OTG |
| 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 | 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 | -40 C to +105 C | -40 C to +105 C |
主要差異化特點
- Crystal-less USB device with on-chip 3.3V LDO (對比MK30DX256VLK7)
- ARM Cortex-M0+ efficiency vs Cortex-M4 performance (對比MK30DX256VLK7)
- Pin-compatible in-socket upgrade for higher flash (對比MKL27Z256VLH4)
- Industrial temperature range (對比MKL26Z128VMC4)
設計說明
Estimated: at full 48 MHz activity from a 3.3V supply with USB enabled, the MKL27Z64VLH4 typical active current sits around 4-5 mA. Deep low-power state VLLS0 can drop quiescent to single-digit microamps. For battery-powered designs, place a 100 nF decoupling cap directly between pins 4 (VDD) and 5 (VSS), with a 4.7 uF bulk cap nearby; this filter is essential to keep noise out of the ADC and internal LDO outputs.
Place the 33 nF USB bypass capacitor as close as possible to VOUT33 (pin 40) to keep the on-chip 3.3V USB LDO output clean, and route the USB_DP (pin 38) and USB_DM (pin 39) pair as a 90-ohm differential trace. Keep VREGIN (pin 41) bypassed with a 1 uF ceramic. Avoid routing digital signals directly across these analog pins to minimize jitter on USB signaling.
At max 48 MHz operation from 3.6V with peripheral activity, the LQFP-64 (10x10 mm) package typically dissipates well under 0.5W, so thermal management is generally not a design concern. For designs near the thermal edge (industrial enclosures with limited airflow), verify junction temperature by computing I_actual x V_dd and accounting for theta_JA ~50 C/W for LQFP-64 with a standard 4-layer PCB. The KL27 was engineered for low-power use, so thermal pads / heatsinks are rarely needed.
Do not forget to populate the optional 32.768 kHz crystal-load capacitors on the relevant pins if crystal-low-USB mode is required; the KL27 supports crystal-less USB via internal clock-recovery, but other protocols (RTC, LPUART timing) may need a real crystal. Also, the reset pin (PTA5 / pin 11 in this LQFP-64 layout) requires a 10 kOhm pull-up to VDD if used in reset mode; leaving it floating can cause intermittent boot failures on long cable harnesses.
合規資訊
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified - this is an industrial/consumer MCU. Lead-free and halogen-free per NXP packaging documentation.
