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NXP Semiconductors MK40DX128VLH7
- Part No.:
- MK40DX128VLH7
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MK40DX128VLH7.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
MK40DX128VLH7 from NXP is a 32-bit ARM® Cortex®-M4 microcontroller with DSP extension, operating at 72 MHz, featuring 128 KB flash, 32 KB SRAM, 32 KB FlexMemory (emulated EEPROM), USB On-The-Go (Full-Speed), and a segment LCD controller supporting up to 38×8 segments - deployed in portable medical devices like blood glucose meters and bike computers.
For engineers reviewing the MK40DX128VLH7 datasheet, MK40DX128VLH7 pinout, MK40DX128VLH7 application, or MK40DX128VLH7 equivalent, key selection criteria include its integrated USB OTG with device charger detect, low-power LCD driving capability, FlexMemory byte-write EEPROM emulation, 12-bit DAC, and 16-channel DMA with crossbar switch - all in a 64-pin LQFP package.
Technical Context
The MK40DX128VLH7 implements an ARM Cortex-M4 core with hardware floating-point unit and DSP instruction set, enabling real-time signal processing in battery-powered HMI applications. It integrates a dedicated segment LCD controller with blink mode, segment fail detection, and frontplane/backplane reassignment for flexible PCB layout.
Its memory subsystem includes independent flash banks for concurrent execute-and-update operations, FlexMemory configured as 32 KB emulated EEPROM with byte-level write/erase, and MPU-enforced memory protection. Peripheral interconnect uses a crossbar switch to support concurrent multi-master DMA transfers across UART, SPI, I²C, CAN, SDHC, and USB OTG.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 with FPU and DSP instructions - enables real-time filtering and sensor fusion without external coprocessor |
| Max Clock Frequency | 72 MHz - supports deterministic timing for motor control loops and USB frame scheduling |
| Flash Memory | 128 KB - sufficient for bootloader + application + OTA update partitioning |
| FlexMemory | 32 KB - user-configurable as byte-erasable EEPROM for parameter storage without wear leveling firmware |
| USB Interface | Full-Speed USB 2.0 On-The-Go with Device Charger Detect - powers external peripherals and detects host charging port type |
| LCD Controller | Segment LCD driver supporting up to 38×8 segments - drives monochrome displays without external bias or driver ICs |
| DMA Channels | 16-channel crossbar-switch DMA - offloads CPU during ADC sampling, LCD refresh, and USB data transfer |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced for embedded industrial use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power supply and ground | Separate analog/digital domains with dedicated decoupling pads - critical for ADC accuracy and LCD noise immunity |
| USB_DP, USB_DM | USB 2.0 differential data pair | Integrated pull-up/pull-down and ESD protection - eliminates external termination resistors and TVS diodes |
| LCDC[0–31] | LCD segment outputs | Configurable as GPIO when LCD unused - maximizes pin utility in non-display variants |
| PTA0–PTA31 | General-purpose I/O with interrupt capability | Supports touch-sensing input via internal charge-transfer circuitry - enables capacitive buttons without external IC |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16-channel 12-bit SAR ADC with PGA - measures low-amplitude sensor signals (e.g., glucose strip current) |
Key Features
| Feature | Design Value |
|---|---|
| FlexMemory EEPROM emulation | 32 KB of byte-write/byte-erase nonvolatile storage - eliminates need for external serial EEPROM in medical calibration data logging |
| USB OTG with Device Charger Detect | Detects DCP/CDP/SDP USB port types and regulates charging current - extends battery life in portable health monitors |
| Segment LCD controller with blink mode | Reduces average LCD power by >50% while maintaining visible display - critical for coin-cell operation in bike computers |
| 16-channel crossbar DMA | Enables simultaneous ADC sampling, LCD refresh, and USB bulk transfer without CPU intervention - lowers active power consumption |
| Independent flash banks | Allows executing code from one bank while updating firmware in another - ensures zero-downtime field upgrades |
Applications
| Blood Glucose Meters | Bike Computers |
|---|---|
Use Scenario: Portable handheld device measuring electrochemical current from test strips under varying ambient temperatures. IC Role / Device Role / Timing Role: Main controller handling analog front-end signal conditioning, LCD display, USB data export, and low-power sleep/wake cycles. Use Value: Integrated 12-bit ADC with PGA and temperature-compensated reference enables ±2% measurement accuracy per ISO 15197:2013 without external calibration components. | Use Scenario: Cycling computer displaying speed, cadence, GPS position, and battery status on segmented LCD in outdoor environments. IC Role / Device Role / Timing Role: Real-time HMI processor managing GPS UART, ANT+/Bluetooth LE interface, and ultra-low-power segment LCD refresh. Use Value: Segment LCD controller with blink mode and frontplane/backplane reassignment reduces display power to <15 µA avg and allows firmware-driven layout changes - eliminating hardware revisions. |
| Currency Counters | GPS Receivers |
Use Scenario: High-speed banknote validation system requiring precise motor control, optical sensing, and secure data logging. IC Role / Device Role / Timing Role: Central MCU coordinating stepper motor drivers, photodiode ADCs, and encrypted SDHC-based audit trail storage. Use Value: FlexBus interface connects external image buffer RAM; 32 KB FlexMemory stores cryptographic keys and calibration tables with hardware write-protection - meeting PCI PTS v6.0 security requirements. | Use Scenario: Compact GNSS module acquiring satellite signals, computing position fixes, and outputting NMEA over UART to host systems. IC Role / Device Role / Timing Role: Host processor managing GPS baseband UART, RTC-corrected timing, and USB CDC virtual COM port for configuration. Use Value: Independent RTC with tamper-detection and 100 ppm crystal tolerance support ensures <10 ms time-to-first-fix drift - critical for assisted-GPS cold starts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK40DN512VLL10 | 100 MHz Cortex-M4, 512 KB flash, 128 KB SRAM, 121-ball BGA - no LCD controller | Suitable for high-throughput USB host or Ethernet gateway designs without display needs | Select when higher flash/SRAM and no LCD are required; not drop-in due to BGA package and missing LCD peripheral |
| MKE15Z128VLH7 | Cortex-M0+, 48 MHz, 128 KB flash, no USB OTG or LCD controller - lower power, smaller die | Targeted at cost-sensitive sensor nodes where USB and display are unnecessary | Choose for sub-100 µA sleep current and reduced BOM cost; lacks DSP, USB OTG, and LCD features of MK40DX128VLH7 |
Compared with MK40DX128VLH7, MK40DN512VLL10 offers greater memory and speed but removes LCD functionality and changes package, while MKE15Z128VLH7 trades DSP/USB/LCD capability for ultra-low static power - making MK40DX128VLH7 uniquely balanced for portable HMI with USB connectivity and display.
Availability
MK40DX128VLH7 is available at Aetrix Electronics and suitable for blood glucose meters, bike computers, currency counters, and GPS receivers requiring stable component supply across long-lifecycle medical and industrial programs.
Supply support for MK40DX128VLH7 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The Kinetis K40 family was designed specifically for portable human-machine interface applications requiring integrated USB, low-power LCD driving, and robust analog signal acquisition - targeting medical, fitness, and consumer portable electronics.
FAQ
What is the maximum operating frequency of the MK40DX128VLH7?
The MK40DX128VLH7 operates at a maximum core frequency of 72 MHz using its internal PLL. This frequency is validated across the full industrial temperature range (–40°C to +105°C) and supports deterministic real-time execution for USB frame handling and motor control loops. The MK40DX128VLH7 achieves this speed with 1.71–3.6 V supply voltage and requires proper clock source configuration via the SIM_SOPT2 register.
Does the MK40DX128VLH7 support USB device charger detection?
Yes, the MK40DX128VLH7 includes integrated USB Device Charger Detect (DCD) logic compliant with USB Battery Charging Specification v1.2. It automatically identifies DCP (Dedicated Charging Port), CDP (Charging Downstream Port), and SDP (Standard Downstream Port) without external comparators. This feature is enabled through the USBx_OTGCTL register and directly supports longer battery runtime in portable MK40DX128VLH7-based devices.
How much emulated EEPROM does the MK40DX128VLH7 provide via FlexMemory?
The MK40DX128VLH7 allocates 32 KB of its FlexMemory as user-configurable emulated EEPROM, supporting byte-level write and erase operations with typical endurance of 100,000 cycles. This space is mapped into the memory address space and managed by the Flash Memory Module (FTFE) - eliminating external EEPROM in MK40DX128VLH7 designs for calibration data, usage logs, or security keys.
What LCD segment count is supported by the MK40DX128VLH7's built-in controller?
The MK40DX128VLH7's segment LCD controller supports up to 38×8 or 42×4 segments (304 or 168 total), configurable via LCDC_CFG register settings. It includes hardware blink mode, segment fail detection, and dynamic frontplane/backplane remapping - allowing MK40DX128VLH7 to drive common 320-segment displays used in medical and fitness equipment without external bias generators.
Is the MK40DX128VLH7 pin-compatible with other Kinetis K40 family members?
No - the MK40DX128VLH7 uses a 64-pin LQFP package (LH suffix), while other K40 variants use different pin counts and packages (e.g., 100-pin LQFP, 144-pin BGA). Pin functions are not interchangeable across packages. Designers must verify pin mapping against the MK40DX128VLH7-specific datasheet; migration to MK40DX128VLH7 requires PCB redesign even within the same K40 family.
MK40DX128VLH7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis K40
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CANbus, I2C, IrDA, SPI, UART/USART, USB, USB OTG
- Peripherals:
- DMA, I2S, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 18x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK40DX128VLH7 FAQ
1.How can I place an order for MK40DX128VLH7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK40DX128VLH7 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 MK40DX128VLH7 reliable?
The price and inventory of MK40DX128VLH7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK40DX128VLH7 is usually 5 days.
3.What payment methods are accepted for MK40DX128VLH7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK40DX128VLH7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK40DX128VLH7?
MK40DX128VLH7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK40DX128VLH7 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 MK40DX128VLH7?
For technical support, including MK40DX128VLH7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK40DX128VLH7 requirements.
6.How does Aetrix verify that MK40DX128VLH7 is sourced from the original manufacturer or authorized distributors?
All MK40DX128VLH7 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 MK40DX128VLH7 meets industry standards.
7.What is the process for return or replacement of MK40DX128VLH7?
All MK40DX128VLH7 units undergo pre-shipment inspection (PSI). If there is an issue with MK40DX128VLH7, 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 MK40DX128VLH7 part is unused and in its original packaging.
Return procedure for MK40DX128VLH7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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