MK40DX64VLH7 - 72MHz Cortex-M4 MCU 64KB Flash | NXP
MPN: MK40DX64VLH7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.99 | $3.99 |
| 10 | $3.61 | $36.10 |
| 100 | $3.25 | $325.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.28 | $2,280.00 |
MK40DX64VLH7 Overview
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest layer of the embedded-system hierarchy beneath system-on-chip devices and application processors. The Kinetis K40 family sits in the mid-performance tier of the Kinetis portfolio, adding a segment LCD driver and high-precision analog integration to the scalable Kinetis platform originally developed by Freescale Semiconductor, now part of NXP Semiconductors.
Key features include the Cortex-M4 core with DSP and single-cycle multiply instructions, 64 KB of on-chip flash program memory, up to 32 MHz crystal oscillator support plus a 32 kHz oscillator for RTC and low-power modes, and a flexible low-power architecture with multiple run, wait, stop, and very-low-power modes. The integrated LCD controller can drive segmented glass directly, eliminating an external LCD driver and reducing BOM cost in metering and human-interface designs.
The device integrates high-precision analog peripherals including 12-bit and 16-bit ADC channels, along with USB connectivity, timers, UART, SPI, and I2C serial interfaces. The 100-pin-capable Kinetis peripheral set is muxed onto the 64-pin LQFP footprint, balancing I/O count against board area. Flash programming operates over the full voltage range, and the memory is scalable upward within the same footprint across the K40 family, providing a firmware-compatible upgrade path to 128 KB and 256 KB variants in the identical 64-LQFP package.
Typical applications include utility metering with segment LCD displays, handheld battery-powered instruments, industrial control panels, consumer appliances with LCD human-machine interfaces, and low-power sensor nodes. The 72 MHz core with hardware DSP support makes it well suited for digital filtering and metering computation, while the low-power modes suit coin-cell and battery-operated portable products.
Design consideration: budget the ADC reference and LCD drive voltages early; the segment LCD controller requires appropriate bias resistor configuration, and analog performance depends on clean VDDA/VREF routing on the 64-LQFP footprint.
This page synthesizes distributor pricing, drop-in same-family alternatives, application guidance, and design notes not found in the manufacturer datasheet, verified as of 2026-10-18.
Drop-in alternatives for MK40DX64VLH7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MK40DX64VLH7 (same form factor and footprint) — differing in Package, Peripherals, Series, Core Size, Flash Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MK40DX128VLH7
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.68 / Unit
View Datasheet →MK40DX256VLH7
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MK30DX64VLH7
✅ Drop-In📋 Reference alternative (not in catalog)
MK20DX64VLH7
✅ Drop-In📋 Reference alternative (not in catalog)
MK10DX64VLH7
✅ Drop-In📋 Reference alternative (not in catalog)
MK40DX64VLH5
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MK40DX64VLH7 Maximum Ratings & Electrical Characteristics
| Core Processor | Arm Cortex-M4 |
| Core Size | 32-Bit |
| Maximum Clock Frequency | 72 MHz |
| Flash Memory | 64 KB (64K x 8) |
| Supply Voltage Range | 1.71 V to 3.6 V (1.8 V / 2.5 V / 3.3 V) |
| Operating Temperature (Ambient) | -40 C to +105 C |
| Crystal Oscillators | up to 32 MHz and 32 kHz |
| LCD Controller | Integrated segment LCD driver |
| USB | USB peripheral integrated |
| ADC Resolution | 12-bit and 16-bit channels |
| Package | 64-LQFP (10x10 mm), FQFP square, gull-wing |
| Mounting Type | Surface Mount |
| Number of Terminals | 64 |
| Temperature Grade | Industrial |
| Lifecycle Status | Active |
MK40DX64VLH7 64-lqfp (10x10 mm), fqfp square, gull-wing Pin Configuration Guide
Pin configuration for MK40DX64VLH7 (64-lqfp (10x10 mm), fqfp square, gull-wing package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MK40DX64VLH7.
Refer to the datasheet for full pin configuration.
Typical Applications
MK40DX64VLH7 is suitable for 6 applications: Utility Metering with Segment LCD, Handheld Battery-Powered Instruments, Industrial Control Panels and HMI, Consumer Appliances with LCD Interface, Low-Power IoT Sensor Nodes, Medical and Wellness Monitoring Devices.
Utility Metering with Segment LCD
The MK40DX64VLH7 fits electricity, water, and gas meter products because the K40 family integrates a segment LCD driver directly on-chip, eliminating an external LCD controller and cutting both BOM cost and board area in the 10x10 mm 64-LQFP footprint. The 72 MHz Cortex-M4 core with single-cycle MAC handles metering DSP computation such as RMS and energy accumulation in real time, while the 12-bit and 16-bit ADC channels sample current and voltage sensing front ends. The flexible low-power modes plus the 32 kHz oscillator support continuous timekeeping and periodic wake sampling at microamp-level average current, and the industrial -40 C to +105 C rating covers unconditioned meter cabinets.
Recommended
Handheld Battery-Powered Instruments
Portable measurement instruments benefit from the MK40DX64VLH7's combination of a 1.71V minimum supply, multiple very-low-power stop modes, and on-chip LCD drive. A single 3V lithium coin cell regulated through an LDO powers the MCU, segment LCD, and analog front end without a boost converter. The 72 MHz Cortex-M4 executes digital filtering on 16-bit ADC samples in real time, and 64 KB flash holds firmware plus calibration tables. The 64-LQFP 10x10 mm package fits compact handheld enclosures, and firmware can later migrate to the pin-compatible MK40DX256VLH7 if feature growth demands more code space, protecting the PCB investment.
Recommended
Industrial Control Panels and HMI
Industrial panels need a human-machine interface with buttons, indicators, and a segment or custom LCD, exactly the peripheral set of the MK40DX64VLH7. The K40 provides UART, SPI, and I2C for talking to PLC I/O modules, motor drivers, and sensors, while the USB peripheral supports configuration and firmware update from a PC. The -40 C to +105 C industrial temperature grade and wide 1.71V to 3.6V supply tolerate noisy factory power through a simple regulator. The 72 MHz core with hardware DSP accelerates PID loops and protocol stacks, and the 64 KB flash suffices for typical panel firmware; the same-footprint 128 KB and 256 KB K40 variants provide a no-respin upgrade path.
Recommended
Consumer Appliances with LCD Interface
Appliances such as cooktops, thermostats, and small white goods commonly use segmented LCDs with touch or button input, a fit for the MK40DX64VLH7's integrated LCD controller and peripheral muxing on the 64-LQFP footprint. The Cortex-M4 runs at 72 MHz from a 3.3V rail, handling UI rendering, sensor polling, and relay or TRIAC timing simultaneously. The 32 kHz oscillator keeps an accurate clock for timers and scheduling during low-power standby, meeting standby-power regulations. The 64 KB flash accommodates appliance control firmware, and volume pricing from LCSC and authorized distributors keeps the BOM competitive in cost-sensitive consumer designs as of October 2026.
Recommended
Low-Power IoT Sensor Nodes
Battery-powered sensor nodes exploit the MK40DX64VLH7's flexible low-power architecture: the core sleeps in very-low-power stop modes between wake events from the 32 kHz oscillator or external interrupts, sampling through the on-chip 16-bit ADC. The 72 MHz Cortex-M4 wakes briefly to filter data and can push readings over UART, SPI, I2C, or the USB peripheral to a radio module. The 1.71V supply floor allows direct operation from a single Li-SOCl2 cell through an LDO, maximizing battery chemistry utilization. The 64-LQFP package offers enough GPIO to bit-bang sensor buses, and 64 KB flash holds a full wireless protocol stack with margin for OTA update staging.
Recommended
Medical and Wellness Monitoring Devices
Portable health monitors such as glucose meters and pulse oximeters mirror the metering use case: segment LCD display, precision analog sampling, battery operation, and strict cost targets. The MK40DX64VLH7's 16-bit ADC resolution supports optical and bioimpedance measurement chains, and the DSP-capable Cortex-M4 core executes digital filtering and ratio computation locally, keeping patient data on-device. The 1.71V to 3.6V supply range and low-power modes extend battery life between charges, while the 64-LQFP gull-wing package supports reworkable, inspectable assemblies appropriate for medical device manufacturing. Pin-compatible K40 flash upgrades accommodate firmware growth for added measurement modes without a board respin.
Recommended
Recommended Products Summary
Engineering reference data for MK40DX64VLH7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MK40DX128VLH7 | MK40DX256VLH7 | MK30DX64VLH7 | MK20DX64VLH7 | MK10DX64VLH7 |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Max Clock | Cortex-M4 @ 72 MHz | Cortex-M4 @ 72 MHz | Cortex-M4 @ 72 MHz | Cortex-M4 @ 72 MHz | Cortex-M4 @ 72 MHz | Cortex-M4 @ 72 MHz |
| Flash Memory | 64 KB | 128 KB | 256 KB | 64 KB | 64 KB | 64 KB |
| Segment LCD Controller | Yes | Yes | Yes | No | No | No |
| Supply Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
Key Differentiators
- Integrated segment LCD controller (vs MK20DX64VLH7)
- Lowest-cost entry to the K40 64-LQFP LCD family (vs MK40DX128VLH7)
- Cortex-M4 with DSP instructions at 72 MHz (vs MK10DX64VLH7)
Design Notes
Supply the MK40DX64VLH7 from a clean 3.3 V rail within its 1.71 V to 3.6 V range. Because the K40 integrates both digital and precision analog (12-bit/16-bit ADC, LCD bias), isolate VDDA with an LC filter or ferrite from the digital VDD and keep the flash write voltage margin in mind: never let the rail brown out below 1.71 V during flash program/erase operations, or corruption can occur. Estimated: a 3.3 V rail with 100 mV of ripple still leaves 1.61 V of headroom above the 1.71 V floor, but add a supervisor for deep brownout events.
On the 64-LQFP (10x10 mm) footprint, place the 100 nF decoupling capacitor for each VDD pin within 2 mm of the pin with a solid ground return, plus one bulk 4.7-10 uF capacitor near the supply entry. Route VREF/VDDA away from LCD and oscillator traces. Use a ground pour under the crystal section and keep the 32 MHz and 32 kHz crystal loops minimal-area and symmetric. Add series termination on fast GPIO leaving the board for EMC robustness in industrial environments.
The K40 pinout multiplexes a large peripheral set onto 64 pins - verify the pin mux table before routing, because the LCD, USB, and ADC functions compete for the same balls on the 64-LQFP. Do not assume all family peripherals are simultaneously available at 64 pins even though they exist in the 100/144-pin members. Also confirm the exact speed grade suffix: the VLH7 grade runs at 72 MHz while lower suffixes are slower, so a firmware timing loop tuned for 72 MHz misbehaves if a lower-grade part is substituted during shortages.
Compliance Information
The NXP product page lists an Environmental Quality section for MK40DX64VLH7, but specific RoHS/REACH/lead-free statuses were not captured in the verified web data. Consult the NXP product page environmental documentation for current certificates.
