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NXP Semiconductors MKL27Z128VLH4
- Part No.:
- MKL27Z128VLH4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKL27Z128VLH4.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:800
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Product details
Overview
MKL27Z128VLH4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM® Cortex®-M0+ microcontroller with 128 KB flash, 32 KB SRAM, and integrated USB FS 2.0 device controller supporting crystal-less operation. It delivers 54 µA/MHz in very low power run mode and 1.96 µA in VLLS3 deep sleep (RAM + RTC retained), targeting battery-powered USB peripherals such as portable medical sensors and smart wearables.
For engineers reviewing the MKL27Z128VLH4 datasheet, MKL27Z128VLH4 pinout, MKL27Z128VLH4 application, or MKL27Z128VLH4 equivalent, key selection criteria include its 64-pin LQFP package, 50 GPIOs (including 6 high-drive), 16-channel ADC with internal Vref, FlexIO for custom serial emulation, and USB device capability without external crystal - all within –40 to 105 °C industrial temperature range and 1.71–3.6 V supply.
Technical Context
The MKL27Z128VLH4 implements an ARM Cortex-M0+ core with Micro Trace Buffer and Bit Manipulation Engine, paired with a multi-mode clock system featuring factory-trimmed 48 MHz HIRC (±0.5%), 8/2 MHz IRC, and 32 kHz–32 MHz crystal support. Its low-power architecture includes six static power modes - from RUN down to VLLS0 - with sub-µA retention states enabled by dedicated low-leakage wakeup unit and LPTMR.
Peripherals are optimized for embedded connectivity: USB FS 2.0 device with on-chip regulator, two low-power UARTs active in VLPS/LLS, dual I²C (one up to 1 Mbit/s), dual SPI (up to 24 Mbit/s), FlexIO for protocol emulation (UART/IrDA/SPI/I²C/I²S/PWM), 16-bit 818 ksps ADC with programmable reference, 12-bit DAC, and analog comparator with integrated 6-bit DAC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - enables real-time control with minimal code footprint and energy per instruction. |
| Memory | 128 KB flash / 32 KB SRAM / 16 KB ROM bootloader - supports field firmware updates without external host. |
| USB | Full-speed 2.0 device, crystal-less operation - eliminates 12 MHz crystal and matching capacitors, reducing BOM cost and board area. |
| ADC | 16-bit, 818 ksps, 16-channel SE/2-channel DP - provides high-resolution sensor data acquisition with internal voltage reference for stable measurements. |
| Low Power | 1.96 µA in VLLS3 (RAM + RTC retained) - enables multi-year battery life in wake-on-event applications like remote sensors. |
| I/O | 50 GPIOs, 6 high-drive pins - drives LEDs, relays, or displays directly without external buffers in space-constrained designs. |
| Temp Range | –40 to 105 °C - qualified for industrial and automotive under-hood environments requiring extended thermal reliability. |
Pinout & Package
Package: 64-pin LQFP, 10 mm × 10 mm, 0.5 mm pitch, 1.6 mm thickness - compatible with standard surface-mount assembly and manual rework.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Separate digital/analog supplies enable noise isolation; VDDA must be within ±0.1 V of VDD for ADC/DAC accuracy. |
| USB_DP / USB_DM | USB full-speed differential pair | Integrated transceiver with internal termination and regulator - requires only 27 Ω series resistors and no external crystal. |
| PTA0–PTA31, PTB0–PTB15, PTC0–PTC15, PTD0–PTD15 | GPIO multiplexed signals | All 50 GPIOs support interrupt, DMA, and multiple peripheral functions via flexible pin muxing (e.g., UART0_RX/TX on PTA1/PTA2). |
| XTAL32 / EXTAL32 | 32 kHz crystal oscillator inputs | Optional external 32.768 kHz crystal for RTC precision timing; not required for USB or main clock operation. |
| SWD_DIO / SWD_CLK | Two-pin Serial Wire Debug interface | Enables programming and debug using standard ARM SWD tools with minimal PCB footprint and no JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| FlexIO module | Configurable logic engine enabling software-defined peripherals - replaces discrete UART/I²C/SPI bridges and reduces component count. |
| Crystal-less USB FS | On-chip 48 MHz USB PLL with internal trimming - eliminates external crystal, load caps, and associated layout constraints for USB device designs. |
| ROM bootloader | Factory-programmed 16 KB ROM with UART/USB/HID interfaces - enables secure firmware updates without external programmer or custom boot code. |
| High-accuracy internal clocks | 48 MHz HIRC (±0.5%) and 8/2 MHz IRC (±3%) - meets USB suspend/resume timing and real-time control requirements without external oscillators. |
| Low-power timer (LPTMR) | Operates from 1 kHz reference in all low-power modes - enables precise wake-up intervals down to milliseconds while consuming <30 nA additional current. |
Applications
| Portable Medical Sensor | Smart Wearable Hub |
|---|---|
Use Scenario: A compact, battery-powered ECG patch continuously monitors heart rate and transmits data via USB to a host PC during charging. IC Role / Device Role / Timing Role: MKL27Z128VLH4 serves as the central controller, acquiring analog ECG signals via its 16-bit ADC, processing them with Cortex-M0+ core, and acting as a USB CDC device for streaming. Use Value: Crystal-less USB and 1.96 µA VLLS3 mode extend battery life between charges; FlexIO allows future integration of proprietary sensor interfaces without hardware change. | Use Scenario: A wrist-worn activity tracker aggregates motion (accelerometer), ambient light, and temperature data, then synchronizes logs over USB when docked. IC Role / Device Role / Timing Role: MKL27Z128VLH4 manages multi-sensor polling, real-time clock tracking, and USB mass storage class (MSC) enumeration for file transfer. Use Value: 50 GPIOs support direct connection of diverse sensors; 32 KB SRAM buffers extended logging sessions; 105 °C rating ensures reliability during wireless charging heat exposure. |
| Industrial USB Dongle | Low-Power IoT Edge Node |
Use Scenario: A DIN-rail mounted USB-to-Modbus converter translates RS-485 fieldbus commands into USB HID reports for PLC configuration tools. IC Role / Device Role / Timing Role: MKL27Z128VLH4 acts as USB HID device and RS-485 UART bridge, leveraging dual UART modules with ISO7816 support and hardware flow control. Use Value: Dual low-power UARTs remain active in VLPS mode for wake-on-RS485; 6 high-drive pins drive RS-485 transceivers directly without level-shifting components. | Use Scenario: A solar-powered environmental monitor samples air quality and humidity every 10 minutes, wakes briefly to transmit via USB, then returns to ultra-low-power sleep. IC Role / Device Role / Timing Role: MKL27Z128VLH4 executes scheduled wake-ups using LPTMR, reads sensors via ADC/I²C, and initiates USB enumeration only when data is ready. Use Value: Sub-2 µA deep sleep current minimizes quiescent drain; internal 1.2 V reference ensures ADC stability across battery voltage decay from 3.6 V to 1.71 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| KL26Z128VLH4 | No USB controller; 48 MHz Cortex-M0+, same 64-LQFP package and memory (128 KB flash/32 KB SRAM). | Suitable where USB is unnecessary but identical low-power performance and peripheral set (FlexIO, ADC, UART) are required. | Select when USB functionality is omitted to reduce cost and simplify EMI design - retains full pin compatibility and software migration path. |
| MKL25Z128VLH4 | 48 MHz Cortex-M0+, 128 KB flash/16 KB SRAM, USB FS 2.0 (crystal-less), but lacks FlexIO and has only 12-channel ADC. | Targeted at simpler USB peripherals with lower I/O and analog channel count, e.g., basic HID devices or USB chargers. | Choose for cost-sensitive USB endpoints needing fewer peripherals; note reduced SRAM limits complex buffering, and missing FlexIO restricts protocol flexibility. |
Compared with KL26Z128VLH4 and MKL25Z128VLH4, the MKL27Z128VLH4 uniquely combines crystal-less USB, FlexIO, and 16-channel ADC in a 64-LQFP package - making it optimal for feature-rich, battery-operated USB peripherals where protocol adaptability and analog precision are critical.
Availability
MKL27Z128VLH4 is available at Aetrix Electronics and suitable for portable medical sensors, smart wearables, and industrial USB dongles requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MKL27Z128VLH4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in ARM-based microcontrollers and edge processing.
The Kinetis KL27 family was designed specifically for cost-sensitive, battery-powered USB-enabled devices - emphasizing ultra-low-power operation, integrated connectivity, and flexible peripheral emulation without external components.
FAQ
Does MKL27Z128VLH4 require an external crystal for USB operation?
No, MKL27Z128VLH4 integrates a factory-trimmed 48 MHz high-accuracy internal reference clock (HIRC) with ±0.5% tolerance, enabling full-speed USB 2.0 device operation without any external crystal or oscillator. This eliminates BOM cost and layout complexity while maintaining USB suspend/resume timing compliance. The MKL27Z128VLH4 datasheet confirms crystal-less USB functionality as a core feature.
What is the lowest power consumption state supported by MKL27Z128VLH4 with RAM and RTC retained?
The MKL27Z128VLH4 achieves 1.96 µA in VLLS3 mode (Very-Low-Leakage Stop Mode 3) while retaining full SRAM contents and RTC operation - verified at 3.0 V and 25 °C per the official datasheet. This state supports wake-up via GPIO, LPTMR, or RTC alarm, making it ideal for infrequent-event sensing applications. MKL27Z128VLH4 maintains this current across its full –40 to 105 °C operating range with appropriate voltage scaling.
How many ADC channels does MKL27Z128VLH4 support, and what is its resolution?
MKL27Z128VLH4 features a single 16-bit successive-approximation ADC module with up to 16 single-ended or 2 differential input channels. It achieves 818 ksps sampling rate and includes a high-accuracy internal voltage reference (Vref) for stable conversion across supply and temperature variations. This ADC capability is explicitly documented for the MKL27Z128VLH4 in the KL27P64M48SF6 datasheet Rev. 5.
Is MKL27Z128VLH4 pin-compatible with other Kinetis KL2x devices in 64-LQFP package?
MKL27Z128VLH4 shares the same 64-LQFP mechanical footprint and power/ground pinout with KL26Z128VLH4 and MKL25Z128VLH4, but signal assignments differ due to peripheral variations (e.g., USB pins present only on MKL27Z128VLH4). Full pin compatibility is not guaranteed; designers must verify signal mapping against each device's pin assignment table before PCB reuse. MKL27Z128VLH4 pinout is defined in Section 5.2 of the KL27P64M48SF6RM1 reference manual.
What debug interface does MKL27Z128VLH4 support, and how many pins are required?
MKL27Z128VLH4 supports Two-pin Serial Wire Debug (SWD) - using SWD_DIO (PTA2) and SWD_CLK (PTA1) - enabling full programming, breakpoint, and trace capabilities with minimal PCB routing. This interface replaces legacy JTAG, reducing debug connector size and pin count. The MKL27Z128VLH4 also includes a Micro Trace Buffer for instruction trace, accessible via SWD. No external debug probe is needed beyond standard ARM-compliant tools.
MKL27Z128VLH4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis KL2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, SPI, UART/USART, USB
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL27Z128VLH4 FAQ
1.How can I place an order for MKL27Z128VLH4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL27Z128VLH4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MKL27Z128VLH4 reliable?
The price and inventory of MKL27Z128VLH4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL27Z128VLH4 is usually 5 days.
3.What payment methods are accepted for MKL27Z128VLH4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL27Z128VLH4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL27Z128VLH4?
MKL27Z128VLH4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL27Z128VLH4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MKL27Z128VLH4?
For technical support, including MKL27Z128VLH4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL27Z128VLH4 requirements.
6.How does Aetrix verify that MKL27Z128VLH4 is sourced from the original manufacturer or authorized distributors?
All MKL27Z128VLH4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MKL27Z128VLH4 meets industry standards.
7.What is the process for return or replacement of MKL27Z128VLH4?
All MKL27Z128VLH4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL27Z128VLH4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MKL27Z128VLH4 part is unused and in its original packaging.
Return procedure for MKL27Z128VLH4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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