MK40DX128VLH7 - 72MHz ARM Cortex-M4 MCU | NXP | Kinetis K40
N.º de pieza: MK40DX128VLH7 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.9 | $5,90 |
| 10 | $5.35 | $53,50 |
| 100 | $4.72 | $472,00 |
| 500 | $4.15 | $2.075,00 |
| 1.000 | $3.68 | $3.680,00 |
MK40DX128VLH7 Descripción general
A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals, forming the highest-volume class of embedded semiconductors. The Kinetis K40 family sits in the mid-performance tier of NXP's scalable Kinetis portfolio, above entry-level K series parts and below the high-performance K6x parts, offering USB and high-precision analog integration.
Key features include the ARM Cortex-M4 core with DSP instructions at 72 MHz, 128 KB (128K x 8) on-chip flash, a segment LCD controller that differentiates K40 from K20 and K10 parts, USB connectivity, flexible low-power modes, and integrated high-precision analog peripherals. The temperature grade is industrial, and terminal form is gull-wing per distributor data.
Technically, the Cortex-M4 pipeline executes single-cycle MAC operations, enabling efficient digital filtering and control loops. The flexiblepower architecture supports multiple run, wait, stop, and very-low-power modes, letting designers trade wake-up latency against standby current in battery-operated products.
Typical applications include industrial HMI panels with segmented LCD displays, consumer appliances, metering products, and battery-powered instruments that need USB plus low-power standby.
Design consideration: verify flash retention and supply-rail selection (1.8 V / 2.5 V / 3.3 V) against the NXP datasheet before finalizing the power tree, and confirm current lifecycle data since the estimated EOL date listed by third-party sources is 2029.
This page synthesizes distributor pricing, cross-reference data, and drop-in alternative analysis not found in the manufacturer datasheet.
Alternativas directas para MK40DX128VLH7 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MK40DX128VLH7 (mismo factor de forma y huella) — difiere en Package, ADC, Maximum CPU Frequency, USB, Mounting Type.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MK40DX256VLH7
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MK40DX64VLH7
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$2.28 / unidad
Ver hoja de datos →MK40DX128VLH5
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MK40DX128VLL7
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MK40DX128VLQ7
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MK40DX128VLH7 Valores máximos y características eléctricas
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-Bit Single-Core |
| Frecuencia de reloj máxima | 72 MHz |
| Flash Memory | 128 KB (128K x 8) |
| Tensión de alimentación | 1.8 V / 2.5 V / 3.3 V |
| Series | Kinetis K40 |
| Encapsulado | 64-LQFP (10x10 mm) |
| Número de pines | 64 |
| Tipo de montaje | Surface Mount |
| Terminal Form | Gull Wing |
| Package Shape | Square |
| Package Code | FQFP |
| Temperature Grade | Industrial |
| Sin halógenos | Compliant |
| Peripherals | Segment LCD controller, USB |
| ECCN | 3A991.a.2 |
| Country of Origin | China, Philippines, Taiwan |
| Introduction Date | July 18, 2012 |
Guía de configuración de pines de MK40DX128VLH7 fqfp
Configuración de pines para MK40DX128VLH7 (encapsulado fqfp). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para MK40DX128VLH7.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MK40DX128VLH7 es adecuado para 6 aplicacións: Segment LCD HMI Panels, Battery-Powered Metering, Industrial Sensing and Control Nodes, USB-Connected Instruments, Portable Medical Monitoring Devices, Consumer Appliance Controls.
Segment LCD HMI Panels
The MK40DX128VLH7 fits industrial and appliance HMI panels because its Kinetis K40 family integrates a dedicated segment LCD controller, eliminating an external LCD driver IC and its associated wiring, quiescent current, and BOM cost. Running at 72 MHz, the Cortex-M4 core refreshes multi-digit displays and services touch or encoder inputs with margin to spare. The 1.8 V to 3.3 V supply range allows direct operation from a single lithium cell through a small LDO. Typical designs place the MCU adjacent to the glass with short segment traces to minimize crosstalk; the 64-LQFP 10x10 mm body provides enough GPIO to drive several hundred segments plus keys without port expanders.
Recomendado
Battery-Powered Metering
In electricity, water, and heat meters, the MK40DX128VLH7 combines flexible low-power modes with an integrated LCD driver, two features that directly extend battery life versus a discrete MCU-plus-driver solution. The 128 KB flash holds metrology firmware, tariff tables, and logging buffers. The Cortex-M4 core executes fast wake-compute-sleep cycles: the device sleeps in a low-power stop mode, wakes on RTC or sensor interrupt, completes measurement averaging using DSP MAC instructions, updates the segment display, and returns to sleep. Industrial temperature grade supports outdoor installations, and the 3.3 V supply range matches lithium thionyl chloride cells via a simple regulator.
Recomendado
Industrial Sensing and Control Nodes
The MK40DX128VLH7 serves factory sensor nodes and small control loops where 72 MHz Cortex-M4 DSP performance processes ADC streams with digital filtering. Its high-precision analog integration and rich peripheral set reduce external component count on crowded industrial PCBs. The 128 KB flash accommodates protocol stacks and calibration routines, while the industrial temperature rating matches cabinet environments. Typical topology: sensor front end feeding an SPI ADC, MCU running control firmware and MODBUS-style communication over UART, with the LCD controller optionally providing local status display. The 64-LQFP package simplifies two-layer routing of GPIO-heavy I/O in retrofit panel designs.
Recomendado
USB-Connected Instruments
With integrated USB, the MK40DX128VLH7 implements device-class firmware (CDC, HID, or custom bulk) for bench instruments, data loggers, and programmer tools, removing the need for a separate USB interface chip. The 72 MHz Cortex-M4 sustains USB transaction handling alongside measurement code, and 128 KB flash stores descriptors, command parsers, and acquisition buffers. Designs typically route the USB D+/D- pair with 90-ohm differential impedance to the 64-LQFP pins and power the MCU from the 5 V VBUS through a 3.3 V LDO. The K40 family's scalable peripheral set lets one firmware image span memory upgrades within the same pinout.
Recomendado
Portable Medical Monitoring Devices
Battery-powered health monitors benefit from the MK40DX128VLH7's combination of low-power modes, on-chip LCD drive for patient-readable readouts, and Cortex-M4 math capability for filter and threshold algorithms. The 1.8 V capable supply rail maximizes energy extraction from a single-cell chemistry, extending operating time. With 128 KB flash, firmware can include self-test routines and data logging demanded by medical device audits. Typical architecture: analog front end (instrumentation amplifier plus delta-sigma ADC) sampled by the MCU, results shown on the segment LCD, and alerts via buzzer GPIO. Designers should follow IEC 60601 isolation practices in the surrounding system power design.
Recomendado
Consumer Appliance Controls
Washing machines, cooktops, and thermostats use the MK40DX128VLH7 where a segment LCD user interface, touch/encoder inputs, and motor or relay control converge on one MCU. The K40's mixed-signal integration reduces board area in cost-driven appliance controllers, and 72 MHz provides headroom for menu-driven UIs and communication protocols. The industrial temperature range comfortably covers appliance interior environments. Typical design: MCU drives triac or relay outputs through driver transistors, samples NTC temperature sensors via an ADC channel, renders status on the LCD, and handles capacitive-touch sensing in software. The 64-LQFP footprint supports economical single-sided component placement in high-volume assembly.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MK40DX128VLH7 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MK40DX256VLH7 | MK40DX64VLH7 | MK40DX128VLH5 | MK40DX128VLL7 | MK40DX128VLQ7 |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (body variant - verify) | 64-pin quad-flat (body variant - verify) |
| Brand | NXP Semiconductors (Freescale legacy) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Clock | ARM Cortex-M4, 72 MHz | ARM Cortex-M4, 72 MHz | ARM Cortex-M4, 72 MHz | ARM Cortex-M4, 50 MHz | ARM Cortex-M4, 72 MHz | ARM Cortex-M4, 72 MHz |
| Flash Memory | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB | 128 KB |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V | 1.8 V / 2.5 V / 3.3 V |
| Segment LCD Controller | Yes (K40 family) | Yes | Yes | Yes | Yes | Yes |
| Drop-in Usability | Reference footprint: 64-LQFP 10x10 | Pin-to-pin, firmware-only change | Pin-to-pin, firmware-only change | Pin-to-pin, re-time for 50 MHz | Verify body size vs land pattern | Verify body size vs land pattern |
Diferenciadores clave
- Integrated segment LCD controller (frente a MK20DX128VLH7 (K20 family))
- Cost-optimized 128 KB flash density (frente a MK40DX256VLH7)
- 72 MHz speed grade headroom (frente a MK40DX128VLH5)
Notas de diseño
The MK40DX128VLH7 accepts 1.8 V, 2.5 V, or 3.3 V supply rails; select the rail early because internal regulator configuration and maximum I/O levels depend on it. For battery designs, a 3.3 V LDO fed from a lithium cell is typical. Decouple each VDD pin with 100 nF ceramic capacitors placed within 2 mm of the pin, plus one bulk 10 uF capacitor per rail. If USB is used, generate 3.3 V from VBUS with an LDO rated at least 150 mA and keep the D+/D- pair as a 90-ohm differential trace. Confirm exact decoupling topology against the NXP K40 datasheet.
Route LCD segment lines as a tight group with a ground guard or adjacent ground trace to suppress crosstalk ghosting on the glass, since segment drive currents are small and coupling is visible at low contrast. Keep the crystal (if used) within 5 mm of the oscillator pins with a local ground island. Program the SWD debug header on production boards - NXP Kinetis parts are flashed and debugged via SWD only, and losing access to the header on a 64-LQFP rework is costly.
Two frequent mistakes with this part: (1) Assuming K20/K10 pinouts apply - the K40's segment LCD controller claims pins that are GPIO on other K series dies, so always check the K40-specific pin multiplexing table in the NXP datasheet. (2) Sourcing risk: this is a Freescale-legacy family with a third-party-estimated EOL around 2029 and a 46% counterfeit threat rating reported in open-market data; buy only through authorized channels (DigiKey, Mouser, Arrow, Rochester) and plan a drop-in upgrade to MK40DX256VLH7 as a hedge since it shares the same footprint.
Información de cumplimiento
Halogen free compliant per third-party datasheet index. ECCN 3A991.a.2. Industrial (not automotive) temperature grade, so AEC-Q100 not applicable. RoHS/REACH status to be confirmed on the NXP product page.