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NXP Semiconductors MKL24Z32VLH4
- Part No.:
- MKL24Z32VLH4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKL24Z32VLH4.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,729
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Product details
Overview
MKL24Z32VLH4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 64-pin LQFP package, featuring 32 KB flash, 4 KB SRAM, USB 2.0 Full/Low-Speed On-The-Go with on-chip transceiver and 5 V-to-3.3 V regulator, 12-bit SAR ADC, and six low-power operating modes. It targets battery-powered HMI, sensor nodes, and USB-connected industrial peripherals.
For engineers reviewing the MKL24Z32VLH4 datasheet, MKL24Z32VLH4 pinout, MKL24Z32VLH4 application, or MKL24Z32VLH4 equivalent, key selection criteria include its ultra-low-power run mode (47 μA/MHz), 2 μA static current with full state retention, 4 μs wakeup from VLPS, USB OTG capability without external PHY, and 50 GPIOs - all within −40°C to +105°C industrial temperature range.
Technical Context
The MKL24Z32VLH4 implements a single-core ARM Cortex-M0+ processor with Bit Manipulation Engine (BME) and Micro Trace Buffer (MTB) for efficient code execution and debug visibility. Its clock system integrates a Multi-purpose Clock Generator (MCG) supporting FEI, FBE, PEE, and BLPI modes, enabling dynamic switching between high-performance (48 MHz) and ultra-low-power (4 MHz) operation.
System-level power management includes nine low-power modes (VLLS0–VLLS3, LLS, VLPS, STOP, WAIT, RUN), programmable voltage monitoring (LVD/LVW), and peripheral-specific current adders - allowing precise power budgeting for mixed-signal applications requiring simultaneous analog sensing, USB communication, and real-time control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, up to 48 MHz - delivers industry-leading throughput per MHz for cost-sensitive embedded control. |
| Memory | 32 KB flash / 4 KB SRAM - sufficient for USB device stack, sensor fusion, and local decision logic without external memory. |
| USB Interface | Full-/Low-Speed USB OTG with integrated transceiver and 5 V-to-3.3 V regulator - eliminates need for external USB PHY or level-shifting components. |
| Power Efficiency | 47 μA/MHz run mode; 2 μA static with full state retention and 4 μs wakeup - enables multi-year battery life in always-on sensor endpoints. |
| Analog Peripherals | 12-bit SAR ADC (up to 16 channels), analog comparator with 6-bit DAC - supports precision voltage/current measurement and threshold-based event triggering. |
| I/O & Timers | 50 GPIOs; six-channel TPM + two 2-channel TPM modules + LPTMR + RTC - enables motor control, PWM lighting, time-stamped logging, and wake-on-event functionality. |
| Operating Range | 1.71–3.6 V supply; −40°C to +105°C ambient - certified for industrial automation, building controls, and automotive under-hood auxiliary modules. |
Pinout & Package
64-pin LQFP (10 × 10 × 1.4 mm, pitch 0.5 mm), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Digital (VDD/VSS) and analog (VDDA/VSSA) supplies must be decoupled independently; ≤0.1 V differential between VDD–VDDA ensures ADC accuracy. |
| USB_DP / USB_DM | USB differential data lines | Direct connection to USB connector; internal 1.5 kΩ pull-up on D+ enables full-speed enumeration without external resistor. |
| PTA0–PTA31, PTB0–PTB15, PTC0–PTC15, PTD0–PTD15 | GPIO multiplexed signals | 50 total usable I/O pins; each supports interrupt-on-change, configurable pull-up/down (20–50 kΩ), and slew-rate control. |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16 dedicated ADC inputs mapped across port pins; internal 6-bit DAC provides programmable reference for comparator. |
| TPM0_CH0–TPM0_CH5, TPM1_CH0–TPM1_CH1, TPM2_CH0–TPM2_CH1 | PWM/timer output channels | Six independent TPM channels plus two dual-channel modules support complementary PWM, encoder input, and dead-time insertion. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power architecture | 90 nm TFS process with clock gating, zero-wait-state flash, and nine power modes - reduces active and standby energy by >60% vs. legacy 8-bit MCUs. |
| Integrated USB OTG | On-chip transceiver + 5 V-to-3.3 V regulator + internal D+ pull-up - cuts BOM cost by $0.35 and board area by 12 mm² vs. discrete PHY solutions. |
| Intelligent low-power timers | LPTMR runs independently in VLPS/VLLS modes using 4 MHz IRC or 32 kHz crystal - enables periodic wakeups without CPU intervention. |
| Robust debug & trace | SWD interface + Micro Trace Buffer (MTB) - captures instruction flow during low-power transitions for deterministic firmware validation. |
| Secure identity | 80-bit unique chip ID fused at manufacture - supports secure boot, device authentication, and license binding in connected edge devices. |
Applications
| Industrial Sensor Node | USB Human Interface Device |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with local display and USB configuration port. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, LCD refresh, button debouncing, and USB CDC virtual COM port. Use Value: 2 μA VLLS0 retention enables 10-year shelf life; USB OTG allows field technicians to update calibration tables without proprietary tools. |
Use Scenario: Programmable mechanical keyboard with RGB backlighting and macro recording. IC Role / Device Role / Timing Role: HID-class USB device handling key matrix scanning, PWM dimming, and report packet generation. Use Value: 48 MHz core executes debounce and lighting effects in <100 μs; integrated USB eliminates external PHY timing skew and EMI concerns. |
| Smart Building Actuator | Portable Medical Monitor |
Use Scenario: DALI/0–10 V lighting controller with occupancy sensing and USB diagnostics. IC Role / Device Role / Timing Role: Real-time actuator driver coordinating analog dimming outputs, PIR signal processing, and USB firmware updates. Use Value: Six-channel TPM generates synchronized 0–10 V analog outputs; −40°C to +105°C rating ensures reliability in ceiling-mounted enclosures. |
Use Scenario: Handheld pulse oximeter with OLED display, optical sensor interface, and USB data export. IC Role / Device Role / Timing Role: Signal conditioner acquiring photodiode data via 12-bit ADC, computing SpO₂, and streaming results over USB CDC. Use Value: 12-bit ADC with internal reference achieves <1% gain error; 4 μs wakeup from VLPS enables instant-on responsiveness after button press. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L053R8T6 | 32-bit ARM Cortex-M0, 32 KB flash, 8 KB SRAM, no native USB - requires external USB transceiver and level shifter. | Lacks integrated USB OTG; better suited for pure sensor node applications where USB is optional or implemented via UART bridge. | Select when USB is secondary and lowest active current (<180 μA @ 32 kHz) is critical; accept added BOM complexity for USB. |
| KL25Z32VLH4 | Same KL2x family, identical 64-pin LQFP package, but adds 16 KB RAM, 64 KB flash, and enhanced USB suspend/resume behavior. | Higher memory headroom for larger USB stacks or OTA firmware updates; same pinout enables drop-in upgrade path. | Select when future firmware expansion or USB host capability is anticipated; no PCB change required. |
Compared with STM32L053R8T6, MKL24Z32VLH4 delivers integrated USB OTG and lower active power at 48 MHz, while KL25Z32VLH4 offers direct memory and feature scalability without layout revision - making MKL24Z32VLH4 optimal for cost-constrained, USB-centric designs needing proven industrial qualification.
Availability
MKL24Z32VLH4 is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, smart building actuators, portable medical monitors, and battery-powered edge controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MKL24Z32VLH4 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, IoT, and mobile applications, with deep expertise in ARM-based microcontrollers and edge processing.
The Kinetis KL24 family was designed specifically for ultra-low-power, USB-enabled general-purpose embedded control - targeting cost-sensitive industrial and consumer applications where integration, certification, and long-term supply stability are mandatory.
FAQ
What is the maximum operating frequency of the MKL24Z32VLH4 core?
The MKL24Z32VLH4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation in normal run mode. This frequency is achieved using the Phase-Locked Loop (PLL) with an external crystal or internal reference clock source. The MKL24Z32VLH4 maintains full peripheral functionality at this speed, including USB 2.0 Full-Speed operation, which requires a minimum 20 MHz system clock.
Does the MKL24Z32VLH4 support USB device mode without external components?
Yes, the MKL24Z32VLH4 integrates a full-speed/low-speed USB 2.0 On-The-Go controller with an on-chip transceiver and a 5 V-to-3.3 V regulator. This allows it to operate as a USB device directly from a standard USB port without external PHY, level shifters, or voltage regulators - significantly reducing bill-of-materials cost and PCB footprint.
What are the low-power modes supported by the MKL24Z32VLH4?
The MKL24Z32VLH4 supports nine distinct low-power modes: RUN, WAIT, STOP, VLPS, LLS, and four Very Low-Leakage Stop (VLLS0–VLLS3) modes. Each mode offers trade-offs between wakeup latency (as low as 4 μs from VLPS) and current consumption (down to 0.12 μA in VLLS0 with PORPO=1), enabling precise power optimization for diverse application requirements.
How much SRAM and flash memory does the MKL24Z32VLH4 include?
The MKL24Z32VLH4 contains 32 KB of on-chip program flash memory and 4 KB of SRAM. The flash supports read-while-write (RWW) and has a 128-byte page size for efficient firmware updates. The SRAM is partitioned into general-purpose blocks and includes retention capability in low-leakage stop modes when powered above 1.2 V.
What is the operating temperature range for the MKL24Z32VLH4?
The MKL24Z32VLH4 is specified for industrial operation from −40°C to +105°C ambient temperature. This extended range is validated across all electrical parameters, including USB signaling integrity, ADC accuracy, and low-power mode current consumption - making it suitable for deployment in harsh environments such as factory floors, outdoor infrastructure, and automotive cabin modules.
MKL24Z32VLH4 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 14x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL24Z32VLH4 FAQ
1.How can I place an order for MKL24Z32VLH4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL24Z32VLH4 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 MKL24Z32VLH4 reliable?
The price and inventory of MKL24Z32VLH4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL24Z32VLH4 is usually 5 days.
3.What payment methods are accepted for MKL24Z32VLH4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL24Z32VLH4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL24Z32VLH4?
MKL24Z32VLH4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL24Z32VLH4 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 MKL24Z32VLH4?
For technical support, including MKL24Z32VLH4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL24Z32VLH4 requirements.
6.How does Aetrix verify that MKL24Z32VLH4 is sourced from the original manufacturer or authorized distributors?
All MKL24Z32VLH4 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 MKL24Z32VLH4 meets industry standards.
7.What is the process for return or replacement of MKL24Z32VLH4?
All MKL24Z32VLH4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL24Z32VLH4, 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 MKL24Z32VLH4 part is unused and in its original packaging.
Return procedure for MKL24Z32VLH4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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