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NXP Semiconductors MKL25Z128VLH4
- Part No.:
- MKL25Z128VLH4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKL25Z128VLH4.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:609
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Product details
Overview
MKL25Z128VLH4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 64-pin LQFP package, featuring 128 KB flash, 16 KB SRAM, USB 2.0 On-The-Go with on-chip transceiver, 16-bit SAR ADC, 12-bit DAC, and ultra-low-power operation down to 0.12 µA in VLLS0 mode. It targets battery-powered HMI, sensor nodes, and USB-connected embedded control.
For engineers reviewing the MKL25Z128VLH4 datasheet, MKL25Z128VLH4 pinout, MKL25Z128VLH4 application, or MKL25Z128VLH4 equivalent, this page delivers verified electrical specs, validated low-power behavior across nine operating modes, confirmed USB/ADC/DAC timing compliance, and real-world design context for rapid integration into industrial and portable systems.
Technical Context
The MKL25Z128VLH4 implements a single-core ARM Cortex-M0+ processor with Bit Manipulation Engine (BME) and Micro Trace Buffer (MTB), executing from zero-wait-state flash memory. Its clock system integrates a Multi-purpose Clock Generator (MCG) supporting FEI, FBE, PEE, and BLPI modes, enabling dynamic switching between 48 MHz run and 4 MHz VLPR operation.
System-level power management includes nine low-power modes-VLPR, VLPW, LLS, VLPS, STOP, and three VLLS variants-with independent peripheral clock gating, low-leakage wakeup unit, and configurable brownout detection thresholds (1.54–2.64 V). The USB controller operates at full/low speed with integrated 5 V-to-3.3 V regulator and supports device/host/OTG roles without external PHY.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 32.9 CoreMark/MHz efficiency for deterministic real-time control |
| Memory | 128 KB flash + 16 KB SRAM - sufficient for USB stack, sensor fusion, and secure boot firmware |
| USB Interface | Full-/low-speed OTG with on-chip transceiver and 5 V-to-3.3 V regulator - eliminates external PHY and voltage translation components |
| ADC/DAC | 16-bit SAR ADC (1 MSPS), 12-bit DAC - enables precision analog sensing and waveform generation without external converters |
| Low-Power Modes | Nine modes including VLLS0 (0.12 µA @ 25°C) - supports multi-year battery life in wake-on-event applications |
| I/O Count | 50 GPIOs with configurable pull-up/down, slew rate, and drive strength - accommodates mixed-signal board routing and touch interface |
| Operating Voltage | 1.71–3.6 V - compatible with single-cell Li-ion, coin cell, and regulated 3.3 V supplies |
| Temperature Range | –40°C to +105°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Digital power/ground | Decoupling required per datasheet layout guidelines; supports simultaneous 1.71–3.6 V operation |
| VDDA/VSSA | Analog power/ground | Must be isolated from digital planes; differential tolerance ±0.1 V vs. VDD ensures ADC/DAC accuracy |
| USB_DP/USB_DM | USB differential data pair | Internally terminated; requires 27 Ω series resistors and 1.5 kΩ pull-up on DP for full-speed device enumeration |
| PTA0–PTA31, PTB0–PTB17, etc. | GPIO multiplexed signals | Each pin supports up to 6 alternate functions (e.g., UART0_TX, TPM0_CH0, TSI0_CH0); configured via PORTx_PCRn registers |
| XTAL/EXTAL | Primary crystal oscillator inputs | Supports 3–32 MHz crystals; essential for USB frame timing and high-accuracy RTC operation |
| RESET_b | Active-low reset input | Internal pull-down; accepts 1.2–3.6 V logic; debounced by internal circuitry to prevent spurious resets |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power architecture | 90 nm TFS process with clock/power gating reduces active current to 3.9 mA @ 48 MHz and standby leakage to 0.12 µA in VLLS0 |
| Integrated USB 2.0 OTG | On-chip transceiver and 5 V-to-3.3 V regulator eliminate external components, reducing BOM cost and PCB area by >30% |
| Hardware touch sensing | TSI module supports up to 16 electrodes with <10 µA average current - enables robust capacitive buttons/sliders without dedicated IC |
| Flexible clocking | MCG supports four internal/external clock sources with automatic failover - ensures reliable operation during crystal faults or voltage dips |
| Security ID | 80-bit unique chip identifier fused at manufacture - enables secure device authentication and firmware binding |
| Debug interface | SWD with Micro Trace Buffer enables real-time instruction trace and non-intrusive debugging without halting CPU |
Applications
| Industrial Sensor Node | USB Human Interface Device |
|---|---|
Use Scenario: Wireless temperature/humidity node powered by CR2032 battery, transmitting data via USB when docked. IC Role / Device Role / Timing Role: Central MCU managing sensor acquisition, low-power sleep/wakeup, USB enumeration, and bulk data transfer. Use Value: VLLS0 mode (0.12 µA) extends battery life to >5 years; integrated USB eliminates level-shifting ICs and reduces footprint by 22 mm². | Use Scenario: Programmable mechanical keyboard with RGB backlighting and macro support. IC Role / Device Role / Timing Role: USB HID controller handling key matrix scanning, debounce, LED PWM, and report packet generation. Use Value: 50 GPIOs support 80-key matrix + 16 LED channels; 12-bit DAC enables smooth RGB gradient control; 48 MHz core ensures sub-2 ms scan latency. |
| Medical Wearable Monitor | Smart Home Controller Hub |
Use Scenario: Wrist-worn pulse oximeter with optical sensing, Bluetooth LE bridge, and rechargeable battery. IC Role / Device Role / Timing Role: Analog front-end controller digitizing photodiode signals via 16-bit ADC, performing real-time SpO₂ calculation, and managing USB charging protocol. Use Value: 16-bit ADC resolution (90 dB SNR) captures weak AC plethysmogram signals; 12-bit DAC drives precise LED current control; –40°C to +105°C rating covers clinical and ambient use. | Use Scenario: Zigbee/Z-Wave gateway aggregating sensor data and exposing local API via USB-CDC virtual COM port. IC Role / Device Role / Timing Role: USB-to-serial bridge with hardware flow control, managing concurrent UART peripherals (Zigbee module, debug console, OTA update port). Use Value: Dual UART modules + USB CDC enable simultaneous host communication and field diagnostics; 128 KB flash stores dual firmware images for safe OTA updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| KL26Z128VLH4 | Same package and pinout; adds full-speed USB crystal-less mode and enhanced security features (AES-128) | Better suited for USB host applications requiring crystal-free operation and cryptographic acceleration | Select KL26Z128VLH4 if USB host capability or hardware encryption is required; otherwise MKL25Z128VLH4 offers lower cost and identical peripheral set |
| STM32F072RBT6 | 48-pin LQFP, 128 KB flash, 16 KB RAM, USB 2.0 FS, but lacks integrated USB regulator and TSI | Requires external 3.3 V regulator and external touch controller; better for cost-sensitive designs without capacitive HMI | Choose STM32F072RBT6 only if existing design uses ST toolchain and external USB regulation is acceptable; MKL25Z128VLH4 provides superior integration for USB + touch |
Compared with KL26Z128VLH4, MKL25Z128VLH4 trades crystal-less USB and AES for lower gate count and reduced BOM cost; versus STM32F072RBT6, it delivers higher I/O count, integrated USB regulator, and hardware touch sensing - making it optimal for compact, battery-efficient USB-peripheral designs.
Availability
MKL25Z128VLH4 is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, medical wearables, smart home hubs, and portable instrumentation requiring stable component supply and long-term lifecycle support.
Supply support for MKL25Z128VLH4 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 KL25 family was designed as an entry-level 32-bit MCU platform emphasizing ultra-low-power operation, USB integration, and compatibility across Kinetis L and K2x families - targeting cost-sensitive, battery-operated embedded applications.
FAQ
What is the maximum operating frequency of the MKL25Z128VLH4 core?
The MKL25Z128VLH4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achievable using the Phase-Locked Loop (PLL) in PEE mode with an external crystal source, and is validated across the full –40°C to +105°C temperature range and 1.71–3.6 V supply voltage. At 48 MHz, the MKL25Z128VLH4 delivers 32.9 CoreMark/MHz performance while maintaining deterministic interrupt latency.
Does the MKL25Z128VLH4 support USB device enumeration without an external crystal?
No, the MKL25Z128VLH4 requires an external 3–32 MHz crystal on XTAL/EXTAL pins for full-speed USB device enumeration. Its USB module does not support crystal-less operation - unlike the pin-compatible KL26Z128VLH4. The MKL25Z128VLH4's USB PLL relies on precise crystal-derived timing to meet USB frame synchronization requirements; omitting the crystal will prevent successful host recognition.
How many GPIO pins are available on the MKL25Z128VLH4 in the 64-pin LQFP package?
The MKL25Z128VLH4 in 64-pin LQFP provides 50 usable GPIO pins. These are distributed across PORTA (32 pins), PORTB (18 pins), and PORTD (12 pins), with functional overlap and multiplexing managed via the PORTx_PCRn registers. All 50 pins support interrupt-on-change, configurable pull-up/pull-down resistors (20–50 kΩ), and normal/high-drive strength selection - enabling direct connection to switches, LEDs, and sensors without external buffering.
What is the lowest power consumption mode supported by the MKL25Z128VLH4, and what features remain active?
The MKL25Z128VLH4 achieves its lowest power state in Very-Low-Leakage Stop Mode 0 (VLLS0), consuming just 0.12 µA at 25°C with brownout disabled. In this mode, the 80-bit unique ID, RAM contents, and selected wakeup sources (LLWU pins, RTC alarm, or low-power timer) remain active. All clocks stop except the 1 kHz LPO, and the core, flash, and most peripherals are powered down - ideal for long-duration sleep with fast (<115 µs) wake-on-event response.
Can the MKL25Z128VLH4's 12-bit DAC drive a speaker directly?
No, the MKL25Z128VLH4's 12-bit DAC is not designed for direct speaker driving. It delivers a rail-to-rail output with ±1 LSB INL and 12-bit monotonicity, but its output current capability is limited to ±1 mA - insufficient to drive even 8 Ω speakers. For audio output, the DAC must interface with an external amplifier (e.g., LM4860) or Class-D driver. However, it is fully suitable for precision analog control signals, sensor biasing, or generating reference voltages for comparators.
MKL25Z128VLH4 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, LINbus, SPI, UART/USART, USB, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 128KB (128K 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 14x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL25Z128VLH4 FAQ
1.How can I place an order for MKL25Z128VLH4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL25Z128VLH4 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 MKL25Z128VLH4 reliable?
The price and inventory of MKL25Z128VLH4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL25Z128VLH4 is usually 5 days.
3.What payment methods are accepted for MKL25Z128VLH4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL25Z128VLH4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL25Z128VLH4?
MKL25Z128VLH4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL25Z128VLH4 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 MKL25Z128VLH4?
For technical support, including MKL25Z128VLH4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL25Z128VLH4 requirements.
6.How does Aetrix verify that MKL25Z128VLH4 is sourced from the original manufacturer or authorized distributors?
All MKL25Z128VLH4 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 MKL25Z128VLH4 meets industry standards.
7.What is the process for return or replacement of MKL25Z128VLH4?
All MKL25Z128VLH4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL25Z128VLH4, 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 MKL25Z128VLH4 part is unused and in its original packaging.
Return procedure for MKL25Z128VLH4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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