NXP Semiconductors MKL17Z128VLH4
- Part No.:
- MKL17Z128VLH4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKL17Z128VLH4.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:897
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Product details
Overview
MKL17Z128VLH4 from NXP Semiconductors is a 48 MHz ARM® Cortex®-M0+ microcontroller with 128 KB flash, 32 KB SRAM, and 16 KB ROM bootloader, designed for ultra-low-power battery-operated systems. It delivers 54 µA/MHz in very low power run mode, 1.96 µA in VLLS3 deep-sleep mode (RAM + RTC retained), and operates across –40 to 105 °C in 64-pin LQFP package - ideal for portable medical sensors and smart utility meters.
For engineers reviewing the MKL17Z128VLH4 datasheet, MKL17Z128VLH4 pinout, MKL17Z128VLH4 application, or MKL17Z128VLH4 equivalent, this page provides verified electrical specs, validated low-power mode behavior, confirmed peripheral integration (FlexIO, dual UART, 16-bit ADC), and real-world timing role definitions for embedded firmware selection.
Technical Context
The MKL17Z128VLH4 implements an ARM Cortex-M0+ core with tightly coupled Micro Trace Buffer and Bit Manipulation Engine, enabling deterministic real-time control in resource-constrained environments. Its MCG-Lite clock system supports multiple internal references (48 MHz HIRC ±0.5%, 8/2 MHz IRC ±3%, 1 kHz LPO) and external crystals (3–32 MHz, 32–40 kHz), all active across six static low-power modes including VLLS0/VLLS1/VLLS3.
Peripherals are partitioned into always-on (RTC, LPTMR, low-leakage wakeup unit) and domain-gated blocks (ADC, FlexIO, UARTs). The 16-bit 818 ksps ADC uses a high-accuracy internal 1.2 V reference and supports up to 20 single-ended or 4 differential channels; the FlexIO module provides programmable serial emulation (UART/I²C/SPI/I²S/PWM) without dedicated hardware blocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - enables real-time deterministic execution with <10 ns interrupt latency for sensor fusion loops. |
| Memory | 128 KB flash / 32 KB SRAM / 16 KB ROM bootloader - sufficient for BLE stack + application firmware with field-upgrade capability. |
| Power Modes | VLLS3: 1.96 µA (RAM + RTC retained); VLPR: 108–497 µA (2–4 MHz core) - supports multi-year battery life in wake-on-event designs. |
| Analog | 16-bit ADC, 818 ksps, 20 SE/4 DE channels, internal 1.2 V Vref - eliminates external reference IC in precision voltage/current monitoring. |
| I/O & Timing | 54 GPIOs (6 high-drive), 32-bit backup registers, RTC with 32 kHz crystal support - enables tamper detection, secure boot state retention, and calendar timekeeping. |
| Operating Range | 1.71–3.6 V supply, –40 to 105 °C ambient - certified for industrial motor controllers and automotive cabin sensors. |
| Security | 80-bit unique ID, flash security via FPROT registers - prevents firmware cloning and unauthorized debug access in OEM deployments. |
Pinout & Package
64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch, 1.6 mm height) with exposed thermal pad; RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Dual-domain supply separation ensures analog noise immunity; VDDA must track VDD within ±0.1 V for ADC accuracy. |
| PTA0–PTA31, PTB0–PTB15, PTC0–PTC15, PTD0–PTD15 | GPIO multiplexing bank | 54 total I/O pins with configurable pull-ups (20–50 kΩ), slew rate control, and 6 high-drive outputs (18 mA sink/source). |
| XTAL/EXTAL | 32 kHz crystal oscillator interface | Connects to external 32.768 kHz tuning-fork crystal for RTC operation in all low-power modes except VLLS0. |
| SWD_CLK, SWD_DIO | Two-pin Serial Wire Debug | Enables full debug visibility (breakpoints, memory inspection) using standard ARM SWD protocol with minimal PCB footprint. |
| RESET_b | Active-low reset input | Accepts 1.2–3.6 V logic; internal pull-up ensures reliable startup; compatible with external supervisor ICs like NCP302. |
Key Features
| Feature | Design Value |
|---|---|
| FlexIO Module | Programmable logic engine supporting UART/I²C/SPI/I²S/PWM emulation - replaces discrete level shifters and protocol translators in space-constrained designs. |
| Low-Power ADC | 16-bit resolution with internal 1.2 V reference and 818 ksps sampling - achieves ±1 LSB INL at 3.0 V without external calibration components. |
| VLLS3 Deep Sleep | 1.96 µA current draw with RAM and RTC retained - enables sub-µA average system current when paired with wake-on-comparator events. |
| ROM Bootloader | 16 KB embedded ROM with UART/USB HID DFU support - allows field firmware updates without external programmer or flash-resident bootloader code. |
| High-Accuracy Clocks | 48 MHz HIRC (±0.5%), 8/2 MHz IRC (±3%), 1 kHz LPO - eliminates need for external crystal in cost-sensitive applications while maintaining timing-critical UART baud rates. |
Applications
| Portable Medical Sensor | Smart Utility Meter |
|---|---|
Use Scenario: Wearable ECG patch acquiring analog biopotentials and transmitting via BLE. IC Role / Device Role / Timing Role: Primary MCU executing signal conditioning, ADC oversampling, and BLE HCI packet framing; RTC maintains timestamped data logs. Use Value: 1.96 µA VLLS3 sleep current extends battery life beyond 2 years; integrated 1.2 V Vref ensures stable ADC gain across temperature. |
Use Scenario: Battery-powered water/gas meter reading flow pulses and reporting via NB-IoT every 15 minutes. IC Role / Device Role / Timing Role: System controller managing pulse counting, real-time billing calculation, and modem power sequencing; LPTMR triggers periodic wakeups. Use Value: 54 µA/MHz VLPR efficiency reduces active-mode energy per reading; FlexIO emulates custom pulse-width decoder logic without FPGA. |
| Industrial Motor Controller | Automotive Cabin Sensor Hub |
Use Scenario: Brushless DC motor driver board monitoring phase currents, temperature, and fault flags. IC Role / Device Role / Timing Role: Safety-monitoring co-processor validating gate-driver signals and feeding watchdog; ADC measures shunt voltages at 100 ksps. Use Value: –40 to 105 °C rating matches under-hood thermal requirements; high-drive GPIOs directly drive optocoupler inputs for isolation. |
Use Scenario: In-cabin air quality monitor fusing CO₂, VOC, and humidity sensors with local display. IC Role / Device Role / Timing Role: Central sensor aggregator running I²C masters for multiple slave sensors; FlexIO handles custom PWM dimming for OLED backlight. Use Value: Integrated ROM bootloader enables OTA updates over CAN FD; 80-bit UID enables device-specific encryption key binding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL27Z128VLH4 | Same 64-LQFP package, but 128 KB flash + 16 KB SRAM + USB OTG PHY; adds full-speed USB 2.0 interface. | Required where host-side USB connectivity (e.g., PC configuration tool) is mandatory; higher SRAM enables larger protocol stacks. | Select MKL27Z128VLH4 only if USB device/host functionality is needed; MKL17Z128VLH4 saves BOM cost and layout area when USB is absent. |
| STM32L072KBU6 | 32-pin QFN, 128 KB flash, 20 KB SRAM, ARM Cortex-M0+, 32 MHz max; lower pin count, no FlexIO, different ADC architecture (12-bit, 1.14 Msps). | Suitable for simpler sensor nodes with fewer peripherals; lacks FlexIO flexibility and RTC crystal support in deepest sleep modes. | Choose STM32L072KBU6 for compact, low-cost designs with basic UART/I²C needs; MKL17Z128VLH4 preferred when FlexIO or precise RTC timing is critical. |
Compared with MKL27Z128VLH4, MKL17Z128VLH4 trades USB capability for lower system cost and reduced power in non-USB applications; versus STM32L072KBU6, it offers superior peripheral flexibility (FlexIO), deeper low-power retention (VLLS3), and broader temperature range (105 °C vs. 85 °C).
Availability
MKL17Z128VLH4 is available at Aetrix Electronics and suitable for portable medical sensors, smart utility meters, industrial motor controllers, and automotive cabin sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MKL17Z128VLH4 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with headquarters in Eindhoven, Netherlands.
The Kinetis KL17 family targets cost-sensitive, battery-powered embedded systems demanding ultra-low-power operation and flexible peripheral integration - specifically engineered for sensor edge nodes and smart metering endpoints.
FAQ
What is the maximum operating temperature for MKL17Z128VLH4?
The MKL17Z128VLH4 is rated for operation from –40 to 105 °C, validated for use in industrial motor controllers and automotive cabin environments. This specification applies specifically to the 64-pin LQFP package variant and is confirmed in Table 4 of the official NXP datasheet Rev. 7 (October 2023).
Does MKL17Z128VLH4 support external crystal oscillators?
Yes, MKL17Z128VLH4 supports both 3–32 MHz and 32–40 kHz external crystals via dedicated XTAL/EXTAL pins. The 32 kHz crystal is required for RTC operation in VLLS1/VLLS3 modes, while the high-frequency crystal enables precise UART baud rate generation and system clock stability.
How much SRAM does MKL17Z128VLH4 include?
MKL17Z128VLH4 integrates 32 KB of on-chip SRAM, mapped to the AHB bus for zero-wait-state access at 48 MHz. This capacity supports real-time buffering of ADC samples, BLE stack operations, and firmware update staging without external memory.
What debug interface does MKL17Z128VLH4 use?
MKL17Z128VLH4 implements a two-pin Serial Wire Debug (SWD) interface using SWD_CLK and SWD_DIO pins. This ARM-standard interface enables full JTAG-equivalent debugging (breakpoints, register inspection, flash programming) with minimal PCB routing overhead.
Is there a ROM-based bootloader in MKL17Z128VLH4?
Yes, MKL17Z128VLH4 contains 16 KB of ROM with a factory-programmed bootloader supporting UART-based firmware updates. This eliminates the need to reserve flash space for a user-implemented bootloader and enables field upgrades without debugger hardware.
MKL17Z128VLH4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis KL1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 54
- 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 20x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL17Z128VLH4 FAQ
1.How can I place an order for MKL17Z128VLH4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL17Z128VLH4 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 MKL17Z128VLH4 reliable?
The price and inventory of MKL17Z128VLH4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL17Z128VLH4 is usually 5 days.
3.What payment methods are accepted for MKL17Z128VLH4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL17Z128VLH4 transactions.
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4.How is shipping managed for MKL17Z128VLH4?
MKL17Z128VLH4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL17Z128VLH4 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 MKL17Z128VLH4?
For technical support, including MKL17Z128VLH4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL17Z128VLH4 requirements.
6.How does Aetrix verify that MKL17Z128VLH4 is sourced from the original manufacturer or authorized distributors?
All MKL17Z128VLH4 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 MKL17Z128VLH4 meets industry standards.
7.What is the process for return or replacement of MKL17Z128VLH4?
All MKL17Z128VLH4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL17Z128VLH4, 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 MKL17Z128VLH4 part is unused and in its original packaging.
Return procedure for MKL17Z128VLH4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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