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NXP Semiconductors MKL27Z64VLH4
- Part No.:
- MKL27Z64VLH4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKL27Z64VLH4.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:767
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Product details
Overview
MKL27Z64VLH4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM® Cortex®-M0+ microcontroller with 64 KB flash, 16 KB SRAM, and integrated USB Full-Speed 2.0 device controller supporting crystal-less operation. It delivers 46 µA/MHz active power consumption and 1.68 µA stop-mode current with RTC + RAM retention, targeting battery-powered IoT edge nodes requiring low-power connectivity and sensor interfacing.
For engineers reviewing the MKL27Z64VLH4 datasheet, MKL27Z64VLH4 pinout, MKL27Z64VLH4 application, or MKL27Z64VLH4 equivalent, key selection criteria include its LQFP-64 package, USB FS crystal-less capability, FlexIO peripheral for custom serial emulation, 16-bit ADC with internal reference, and six low-power operating modes down to VLLS0.
Technical Context
The MKL27Z64VLH4 implements an ARM Cortex-M0+ core with NVIC and SWD debug interface, paired with a MCG-Lite clock system offering HIRC48M (±0.5%), LIRC8M (±3%), and 1 kHz LPO-enabling precise USB timing without external crystals. Its memory subsystem includes 64 KB flash (1 KB pages), 16 KB SRAM, and 16 KB ROM containing a bootloader supporting UART/I2C/USB/SPI firmware updates.
Peripherals are organized across three clock domains: platform (max 48 MHz), bus (max 24 MHz), and system (max 48 MHz). The FlexIO module operates on bus clock and supports programmable state machines for UART/I2C/SPI/I2S/PWM emulation, while the USB FS controller uses dedicated system clock and retains link state in ultra-low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - enables real-time control at low gate count and power budget |
| Flash / SRAM | 64 KB / 16 KB - sufficient for USB stack + application logic + OTA update staging buffer |
| USB Interface | Full-Speed 2.0 device only, crystal-less - eliminates 12 MHz crystal and load capacitors, reducing BOM cost and board area |
| ADC | 16-bit, 17-channel, 818 ksps @ ≤13-bit - supports high-resolution sensor acquisition with internal voltage reference |
| Low-Power Modes | VLPR: 46 µA/MHz; Stop: 1.68 µA (RTC+RAM retained) - extends battery life in intermittent-sensing applications |
| I/O Count | 51 GPIOs (6 high-drive) - supports multi-sensor interfaces, LED indicators, and wake-up pins in compact LQFP layout |
| FlexIO | Programmable serial peripheral emulator - replaces discrete level shifters or protocol translators in custom communication links |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch, 1.6 mm height), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Separate analog/digital power domains support clean ADC operation; decoupling required per datasheet layout guidelines |
| PTA0–PTA31, PTB0–PTB16, PTC0–PTC13, PTD0–PTD7, PTE0–PTE1 | GPIO banks A–E | 51 total configurable I/Os; up to 6 support high-drive (20 mA) for direct LED or relay driving |
| USB_DP / USB_DM | USB Full-Speed differential pair | Integrated transceiver with internal termination; requires only series resistors and ESD protection for crystal-less operation |
| XTAL0 / EXTAL0 | Crystal oscillator input/output | Optional 32 kHz–32 MHz crystal support; not required for USB but needed for precise RTC or higher accuracy timing |
| SWD_DIO / SWD_CLK | Serial Wire Debug interface | Two-pin debug and programming path - enables in-circuit debugging without JTAG overhead |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB FS | Eliminates external 12 MHz crystal and associated capacitors, reducing component count and PCB footprint by ≥3 parts |
| Embedded ROM bootloader | Enables field firmware updates over UART/I2C/USB/SPI without external programmer - critical for deployed IoT devices |
| FlexIO module | Configurable logic engine for custom serial protocols (e.g., proprietary sensor bus, IR modulation) - avoids FPGA or discrete glue logic |
| Hardware CRC engine | Offloads checksum computation from CPU during firmware validation or data logging - improves throughput and determinism |
| 6 low-power modes | Granular power control from VLPR (full performance) to VLLS0 (1.68 µA) - matches energy budget to sensor sampling interval and communication duty cycle |
Applications
| Smart Wearable Sensor Hub | USB-C Powered Industrial Gateway |
|---|---|
Use Scenario: Compact wrist-worn health monitor aggregating accelerometer, temperature, and optical heart-rate data. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, local preprocessing, USB HID reporting, and dynamic power scaling between motion-triggered bursts and deep sleep. Use Value: Crystal-less USB enables seamless PC/mobile pairing without timing component trade-offs; 1.68 µA stop mode extends coin-cell battery life beyond 6 months. | Use Scenario: DIN-rail mounted edge node converting Modbus RTU to USB CDC for legacy PLC integration. IC Role / Device Role / Timing Role: Protocol bridge with dual UARTs (one for RS-485, one for USB CDC), FlexIO emulating hardware flow control, and USB enumeration under 5 V USB-C power. Use Value: Integrated USB FS + 51 GPIOs eliminate external transceiver and level shifter; 48 MHz core handles real-time Modbus parsing without latency jitter. |
| Wireless Sensor Node Companion MCU | Low-Cost Medical Diagnostic Tool |
Use Scenario: BLE-to-USB bridge where Nordic nRF52 forwards sensor data to MKL27Z64VLH4 for USB streaming to host PC. IC Role / Device Role / Timing Role: USB endpoint controller with DMA-accelerated bulk transfers, SRAM buffering, and automatic suspend/resume handling. Use Value: 16 KB SRAM provides 2× packet buffering depth vs. typical 8 KB MCUs; reduces host-side USB IN token timeouts during BLE burst intervals. | Use Scenario: Portable ECG front-end with analog signal conditioning, 16-bit ADC sampling, and USB waveform export. IC Role / Device Role / Timing Role: Signal acquisition controller with precision ADC, internal 1.2 V reference, and USB mass storage class for raw data dumps. Use Value: High-accuracy internal voltage reference eliminates external VREF IC; 818 ksps sampling enables Nyquist-compliant 400 Hz ECG bandwidth at 13-bit resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL27Z64VDA4 | 36-pin XFBGA, 30 GPIOs, 14 ADC channels - smaller footprint but fewer I/Os and no USB routing flexibility | Suitable for space-constrained consumer wearables where USB connector placement is fixed and I/O count is minimal | Select when board area < 12 mm² is mandatory and USB signal integrity can be maintained in dense BGA layout |
| MKL26Z64VLH4 | Same LQFP-64 package, 48 MHz Cortex-M0+, but 64 KB flash / 8 KB SRAM - half the RAM of MKL27Z64VLH4 | Fits simpler USB HID devices (e.g., keyboard/mouse) without local data buffering or complex state machines | Choose when application fits within 8 KB RAM and does not require ROM bootloader or FlexIO-based protocol extension |
Compared with MKL27Z64VLH4, MKL27Z64VDA4 trades I/O and USB layout freedom for miniaturization, while MKL26Z64VLH4 reduces RAM and removes FlexIO/ROM bootloader-making it viable only for basic USB peripherals without field-upgrade or custom serial needs.
Availability
MKL27Z64VLH4 is available at Aetrix Electronics and suitable for smart wearable sensor hubs, USB-C powered industrial gateways, wireless sensor node companion functions, and low-cost medical diagnostic tools requiring stable component supply and long-term manufacturability.
Supply support for MKL27Z64VLH4 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 delivering secure, scalable solutions for automotive, industrial, IoT, and mobile applications, with roots in Freescale's Kinetis portfolio.
The Kinetis KL27 family was designed specifically for cost-sensitive, battery-operated USB-connected edge devices-emphasizing ultra-low-power operation, integrated connectivity, and flexible peripheral emulation via FlexIO.
FAQ
Does MKL27Z64VLH4 support USB device functionality without an external crystal?
Yes, MKL27Z64VLH4 integrates a high-accuracy 48 MHz internal reference clock (HIRC48M) trimmed to ±0.5%, enabling full USB Full-Speed 2.0 device operation without external crystal or load capacitors. This is confirmed in the KL27P64M48SF2 datasheet Section 2.1.6 and electrical specifications Table 5-19.
What is the maximum ADC sampling rate achievable on MKL27Z64VLH4?
MKL27Z64VLH4 achieves up to 818 ksps in ≤13-bit mode with its 16-bit SAR ADC. At full 16-bit resolution, the maximum rate drops to approximately 250 ksps due to increased conversion time. These values are specified in Section 5.3.6 of the KL27P64M48SF2 datasheet under "ADC switching specifications".
How many GPIO pins does MKL27Z64VLH4 expose in its LQFP-64 package?
MKL27Z64VLH4 in the 64-pin LQFP package provides 51 general-purpose I/O pins, including 6 high-drive outputs capable of sourcing/sinking 20 mA. This count is explicitly listed in Table 1 (Ordering Information) of the KL27P64M48SF2 datasheet and verified in the pin multiplexing tables (Section 4.1).
Is there a built-in bootloader in MKL27Z64VLH4, and which interfaces does it support?
Yes, MKL27Z64VLH4 contains 16 KB of ROM with a factory-programmed bootloader supporting firmware updates over UART, I2C, SPI, and USB interfaces. This is documented in Section 2.1.4 (Memory) and Section 2.1.5 (Reset and boot) of the KL27P64M48SF2 datasheet, and referenced in the KL2xPB1 product brief.
What low-power modes are available on MKL27Z64VLH4, and what is the lowest current draw?
MKL27Z64VLH4 offers six low-power modes: VLPR, VLPW, Stop, VLPS, LLS, and VLLS (with sub-modes VLLS0/VLLS1/VLLS3). The lowest current draw is 1.68 µA in Stop mode with RTC and RAM retained, as measured per Section 5.2.2 (Nonswitching electrical specifications) of the KL27P64M48SF2 datasheet.
MKL27Z64VLH4 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, FlexIO, SPI, UART/USART, USB
- Peripherals:
- DMA, I2S, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 17x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL27Z64VLH4 FAQ
1.How can I place an order for MKL27Z64VLH4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL27Z64VLH4 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 MKL27Z64VLH4 reliable?
The price and inventory of MKL27Z64VLH4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL27Z64VLH4 is usually 5 days.
3.What payment methods are accepted for MKL27Z64VLH4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL27Z64VLH4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL27Z64VLH4?
MKL27Z64VLH4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL27Z64VLH4 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 MKL27Z64VLH4?
For technical support, including MKL27Z64VLH4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL27Z64VLH4 requirements.
6.How does Aetrix verify that MKL27Z64VLH4 is sourced from the original manufacturer or authorized distributors?
All MKL27Z64VLH4 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 MKL27Z64VLH4 meets industry standards.
7.What is the process for return or replacement of MKL27Z64VLH4?
All MKL27Z64VLH4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL27Z64VLH4, 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 MKL27Z64VLH4 part is unused and in its original packaging.
Return procedure for MKL27Z64VLH4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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