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NXP Semiconductors MK40DX128VMC7
- Part No.:
- MK40DX128VMC7
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 121-LFBGA
- Datasheet:
-
MK40DX128VMC7.pdf
- Description:
- IC MCU 32B 128KB FLASH 121MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,140
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Product details
Overview
MK40DX128VMC7 from NXP is a 72 MHz ARM® Cortex®-M4 microcontroller with 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 - used in portable medical devices like blood glucose meters and bike computers requiring low-power HMI and integrated analog peripherals.
For engineers reviewing the MK40DX128VMC7 datasheet, MK40DX128VMC7 pinout, MK40DX128VMC7 application, or MK40DX128VMC7 equivalent, key selection criteria include its 72 MHz Cortex-M4 core with DSP extensions, USB OTG + device charger detect, 16-bit ADC, dual DACs (6-bit and 12-bit), and 100-pin LQFP package with 5 V-tolerant I/O.
Technical Context
The MK40DX128VMC7 implements an ARM Cortex-M4 core with hardware floating-point unit and DSP instruction set, operating at up to 72 MHz. It integrates a 16-channel DMA controller with crossbar switch, Memory Protection Unit (MPU), and FlexBus external interface for connecting displays or memory.
Its analog subsystem includes a 16-bit SAR ADC with PGA, dual DACs (6-bit and 12-bit), analog comparators, and voltage reference. The segment LCD controller supports up to 304 segments (38×8 or 42×4) with blink mode, segment fail detection, and frontplane/backplane reassignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 @ 72 MHz with FPU and DSP instructions - enables real-time signal processing in portable HMI applications. |
| Flash / SRAM / FlexMemory | 128 KB program flash, 32 KB SRAM, 32 KB FlexMemory (byte-erasable EEPROM emulation) - supports firmware updates and data logging without external EEPROM. |
| USB Interface | USB 2.0 Full-Speed On-The-Go with integrated 3.3 V regulator and Device Charger Detect (DCD) - powers external peripherals and identifies charging sources for battery-aware operation. |
| LCD Controller | Segment LCD controller supporting up to 304 segments (38×8 or 42×4) with blink mode and segment fail detection - reduces average power and eliminates external test circuitry. |
| Analog Peripherals | 16-bit ADC with PGA, 12-bit DAC, 6-bit DAC, analog comparator, and voltage reference - enables high-precision sensor interfacing and analog output control in medical instruments. |
| I/O & Packaging | 83 GPIO pins, 5 V-tolerant on selected I/O, in 100-pin LQFP (14×14 mm) package - simplifies interface to legacy 5 V peripherals and eases PCB routing. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power supply and ground | 3.0–3.6 V operation; multiple VDD/VSS pairs reduce noise and improve EMI performance. |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver with internal termination; requires no external resistors for standard USB device operation. |
| LCD_SEGx / LCD_COMy | Segment and common outputs for LCD panel | Configurable up to 38 segment × 8 common or 42 × 4; supports static, 1/2, 1/3, or 1/4 bias drive. |
| ADC0_SEx / ADC0_DE | Dedicated analog input channels | 16-bit resolution with programmable gain amplifier (PGA) up to 64× - enables direct connection to low-level sensor signals. |
| PTA0–PTA31, PTB0–PTB16, etc. | GPIO multiplexed with peripheral functions | Each port supports interrupt-on-change, slew rate control, and pull-up/down - configurable per-pin for HMI button scanning or serial interface routing. |
Key Features
| Feature | Design Value |
|---|---|
| FlexMemory (32 KB) | Emulates EEPROM with byte-level write/erase capability - eliminates need for external nonvolatile memory in data-logging designs. |
| USB OTG with Device Charger Detect | Detects USB wall chargers vs. PCs and adjusts current draw accordingly - extends battery life in portable medical and fitness devices. |
| Segment LCD controller with blink mode | Drives up to 304 segments while maintaining CPU in low-power stop mode - reduces average power by >50% vs. static drive. |
| 16-bit ADC with PGA | Programmable gain up to 64× enables direct measurement of µV-level sensor outputs (e.g., glucose strip electrochemical signals). |
| 5 V-tolerant I/O | Selected GPIO pins tolerate 5 V inputs without level shifters - simplifies integration with legacy displays, encoders, or industrial sensors. |
Applications
| Blood Glucose Meters | Bike Computers |
|---|---|
Use Scenario: Portable handheld device measuring blood glucose concentration via electrochemical test strips, with LCD display and USB data export. IC Role / Device Role / Timing Role: Primary MCU handling analog signal acquisition (16-bit ADC + PGA), LCD segment driving (304-segment), USB mass storage interface, and real-time clock for timestamping. Use Value: Integrated FlexMemory stores calibration data and historical readings; USB DCD ensures safe charging during data sync without overloading battery circuits. | Use Scenario: Compact cycling computer displaying speed, cadence, heart rate, and GPS-derived metrics using segmented LCD and wireless sensor interfaces. IC Role / Device Role / Timing Role: Central controller managing GPS UART, ANT+/Bluetooth UART/SPI, LCD refresh, and low-power wake-up from motion sensors. Use Value: Blink-mode LCD reduces active current to <10 µA while retaining visible display; 72 MHz Cortex-M4 processes sensor fusion algorithms in real time. |
| Currency Counters | GPS Receivers |
Use Scenario: Desktop or portable currency validation system using optical, magnetic, and IR sensors to authenticate banknotes, with LCD status display and USB host connectivity. IC Role / Device Role / Timing Role: Main processor executing multi-sensor correlation logic, driving 4-line segmented LCD, and acting as USB device for firmware updates and audit log retrieval. Use Value: 5 V-tolerant I/O directly interfaces legacy optical sensor modules; FlexBus supports optional external SRAM for image buffer storage. | Use Scenario: Handheld GPS receiver with barometric altimeter, compass, and track logging - requiring precise timing, low-power operation, and segment LCD readability in sunlight. IC Role / Device Role / Timing Role: System-on-chip managing GPS UART, RTC, segment LCD, and power sequencing across sleep/wake cycles. Use Value: Independent RTC with tamper-detection backup power maintains accurate time during battery swaps; low-leakage wake-up unit achieves <1 µA stop-mode current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK40DN128VLH7 | Same core and peripherals but in 64-pin LQFP; reduced GPIO count (46), no FlexBus, max 24×8 LCD segments. | Suitable for space-constrained, lower-I/O designs like simple glucose meters without SD card or external display. | Select when board area and BOM cost are prioritized over LCD segment count and external memory expansion. |
| MK64FX512VLQ12 | ARM Cortex-M4 @ 120 MHz, 512 KB flash, 128 KB SRAM, Ethernet MAC, and full-speed USB OTG - no segment LCD controller. | Targeted at networked industrial gateways or advanced GPS loggers needing Ethernet or larger code space, not LCD-centric HMI. | Choose when USB + Ethernet + larger memory outweighs integrated LCD control - requires external display driver. |
Compared with MK40DX128VMC7, MK40DN128VLH7 trades LCD segment capacity and I/O for smaller footprint, while MK64FX512VLQ12 replaces LCD functionality with Ethernet and higher performance - making MK40DX128VMC7 optimal for cost-sensitive, LCD-driven portable medical and fitness devices.
Availability
MK40DX128VMC7 is available at Aetrix Electronics and suitable for blood glucose meters, bike computers, currency counters, and GPS receivers requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for MK40DX128VMC7 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in ARM-based microcontrollers and RF technologies.
The Kinetis K40 family, including MK40DX128VMC7, was designed specifically for portable, battery-powered human-machine interface applications demanding integrated LCD control, USB connectivity, and precision analog sensing - such as medical diagnostics and sports electronics.
FAQ
What is the maximum segment count supported by the MK40DX128VMC7's LCD controller?
The MK40DX128VMC7 supports up to 304 segments (38 × 8 or 42 × 4 configuration) with software-configurable bias and duty cycle. This is confirmed in the K40 Family Data Sheet Rev.9 and matches the "UP TO 38 X 8/42 X 4" specification listed for MK40DX128Vyy7 variants. The controller includes segment fail detection and blink mode for ultra-low-power operation.
Does the MK40DX128VMC7 include a hardware floating-point unit (FPU)?
Yes, the MK40DX128VMC7 integrates an ARM Cortex-M4 core with single-precision IEEE 754 hardware FPU. This enables efficient execution of DSP-intensive tasks such as sensor fusion or glucose algorithm computation without software emulation overhead - verified in the K40 Reference Manual and ARM Cortex-M4 Technical Reference Manual.
What USB capabilities does the MK40DX128VMC7 provide?
The MK40DX128VMC7 features USB 2.0 Full-Speed On-The-Go with integrated 3.3 V regulator (capable of supplying up to 120 mA) and Device Charger Detect (DCD) logic. It supports both device and host roles, enabling direct connection to PCs, USB flash drives, or charging adapters - as documented in the K40 USB Module User's Guide.
Is FlexMemory in the MK40DX128VMC7 truly EEPROM-equivalent?
Yes - the 32 KB FlexMemory block in MK40DX128VMC7 supports byte-level erase and write operations with endurance exceeding 100,000 cycles and data retention >10 years, functionally equivalent to external EEPROM. It is managed via the Flash Memory Controller (FTFE) and requires no external components, as specified in the K40 Sub-Family Reference Manual.
What package type and pin count does the MK40DX128VMC7 use?
The MK40DX128VMC7 uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch), designated by the "MC" suffix per NXP's K40 family naming convention. It provides 83 GPIO pins, with 5 V tolerance on selected I/O - confirmed in the K40 Family Selection Guide and NXP's official product page for MK40DX128VMC7.
MK40DX128VMC7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 121-LFBGA
- 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:
- 74
- 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 34x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK40DX128VMC7 FAQ
1.How can I place an order for MK40DX128VMC7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK40DX128VMC7 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 MK40DX128VMC7 reliable?
The price and inventory of MK40DX128VMC7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK40DX128VMC7 is usually 5 days.
3.What payment methods are accepted for MK40DX128VMC7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK40DX128VMC7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK40DX128VMC7?
MK40DX128VMC7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK40DX128VMC7 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 MK40DX128VMC7?
For technical support, including MK40DX128VMC7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK40DX128VMC7 requirements.
6.How does Aetrix verify that MK40DX128VMC7 is sourced from the original manufacturer or authorized distributors?
All MK40DX128VMC7 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 MK40DX128VMC7 meets industry standards.
7.What is the process for return or replacement of MK40DX128VMC7?
All MK40DX128VMC7 units undergo pre-shipment inspection (PSI). If there is an issue with MK40DX128VMC7, 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 MK40DX128VMC7 part is unused and in its original packaging.
Return procedure for MK40DX128VMC7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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