MK12DX256VLH5 - 50MHz Cortex-M4 MCU, 256KB Flash, 64-LQFP | NXP
Référence : MK12DX256VLH5 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $12.85 | $12,85 |
| 10 | $11.92 | $119,20 |
| 100 | $10.45 | $1 045,00 |
| 500 | $9.18 | $4 590,00 |
| 1 000 | $8.25 | $8 250,00 |
MK12DX256VLH5 Présentation
Kinetis K12 belongs to NXP's Kinetis microcontroller family of ARM Cortex-M based MCUs, sitting between the K10 (low-power) and K20 (high-performance, USB-capable) families. It inherits the Cortex-M4 instruction set with DSP extensions and FPU, ensuring broad ecosystem compatibility with the wider Kinetis K-series platform, including pin-compatible migration paths to the K22 family and software reuse through Kinetis SDK and Processor Expert tooling.
Key features of the MK12DX256VLH5 include: 256 KB flash with 32 KB SRAM, segment LCD driver (up to 8x36 segments), USB 2.0 full-speed OTG with on-chip transceiver, two 16-bit ADCs (one 12-bit SAR ADC optional on derivatives), multiple timers including FTM/PIT/LPTMR, low-power run/wait/stop modes, and a wide -40 C to +105 C industrial operating temperature range, all in a 64-LQFP surface-mount package with a RoHS-compliant lead-free finish.
The MK12DX256VLH5 uses the standard Kinetis Cortex-M4 core with 3-stage pipeline, single-precision FPU, and DSP instructions, paired with a 16-channel DMA, nested vector interrupt controller (NVIC), and memory protection unit. Program flash is ECC-protected and supports byte-level EEPROM emulation, and SRAM includes parity/ECC options on derivatives. The integrated USB 2.0 OTG controller includes on-chip FS transceiver and 5 V regulator pull-up, simplifying USB designs.
Typical applications include industrial human-machine interfaces with LCD, USB peripherals and HID devices, building automation panels, electronic metering, portable medical devices, and consumer white goods with segment-LCD displays. The combination of Cortex-M4 DSP performance and segment-LCD drive makes the K12 family especially suited to instrument cluster and HVAC control panels.
A key design consideration when selecting MK12DX256VLH5 is the 64-LQFP footprint versus higher-density MAPBGA alternatives; designers should evaluate whether 64-LQFP routing is sufficient. The segment-LCD voltage generation uses an internal charge pump, but pin count must be budgeted between analog, communication (UART/SPI/I2C), and LCD signals.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, optimized to deliver decision-grade context for Kinetis K12 platform selection.
Alternatives de remplacement direct pour MK12DX256VLH5 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MK12DX256VLH5 (même facteur de forme et même empreinte) — différant par Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MK12DN512VLH5
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MK12DX256VLH5 Valeurs maximales et caractéristiques électriques
| Product Family | Kinetis K12 |
| Core | ARM Cortex-M4 with FPU and DSP |
| Operating Frequency | Up to 50 MHz |
| Program Flash | 256 KB |
| SRAM | 32 KB |
| Tension d'alimentation | 1.71 V to 3.6 V (1.8 V / 2.5 V / 3.3 V) |
| Boîtier | 64-LQFP (10x10 mm, 0.5 mm pitch) |
| Température de fonctionnement | -40 C to +105 C (industrial) |
| USB | USB 2.0 Full-Speed OTG with on-chip transceiver |
| Segment LCD | Up to 8 x 36 segments, integrated charge pump |
| ADC | 12-bit and 16-bit SAR ADC (derivative-dependent) |
| DMA Channels | 16 channels |
| Timers | FTM, PIT, LPTMR, RTC |
| Communication | UART, SPI, I2C, I2S |
| GPIO | Up to 54 GPIO |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Niveau MSL | 3 (per JEDEC J-STD-020) |
Configuration des broches de MK12DX256VLH5
| Broche 1 | PTE0 — GPIO / ADC / TSI |
| Broche 2 | PTE1 — GPIO / ADC / TSI |
| Broche 3 | PTE2 — GPIO / ADC / TSI |
| Broche 4 | PTE3 — GPIO / ADC / TSI |
| Broche 5 | PTE4 — GPIO / IRQ / TSI |
| Broche 6 | PTE5 — GPIO / IRQ / TSI |
| Broche 7 | PTE6 — GPIO / TSI |
| Broche 8 | VDD — Digital supply voltage |
| Broche 9 | VSS — Digital ground |
| Broche 10 | USB0_DP — USB D+ (USB0) |
| Broche 11 | USB0_DM — USB D- (USB0) |
| Broche 12 | VOUT33 — USB 3.3 V regulator output |
| Broche 13 | VREGIN — USB regulator input |
| Broche 14 | PTA0 — GPIO / TSI / IRQ |
| Broche 15 | PTA1 — GPIO / TSI / IRQ |
| Broche 16 | PTA2 — GPIO / UART0_TX |
| Broche 17 | PTA3 — GPIO / UART0_RX / IRQ |
| Broche 18 | PTA4 — GPIO / LCD |
| Broche 19 | PTA5 — GPIO / LCD |
| Broche 20 | PTA6 — GPIO / LCD |
| Broche 21 | PTA7 — GPIO / LCD |
| Broche 22 | PTB0 — GPIO / LCD / I2C0_SCL |
| Broche 23 | PTB1 — GPIO / LCD / I2C0_SDA |
| Broche 24 | PTB2 — GPIO / LCD / SPI0_SCK |
| Broche 25 | PTB3 — GPIO / LCD / SPI0_SOUT |
| Broche 26 | PTB4 — GPIO / LCD |
| Broche 27 | PTB5 — GPIO / LCD |
| Broche 28 | PTC0 — GPIO / LCD |
| Broche 29 | PTC1 — GPIO / LCD / I2C1_SCL |
| Broche 30 | PTC2 — GPIO / LCD / I2C1_SDA |
| Broche 31 | PTC3 — GPIO / LCD |
| Broche 32 | PTC4 — GPIO / LCD |
| Broche 33 | PTC5 — GPIO / LCD / SPI1_SCK |
| Broche 34 | PTC6 — GPIO / LCD / SPI1_SOUT |
| Broche 35 | PTC7 — GPIO / LCD / SPI1_SIN |
| Broche 36 | PTD0 — GPIO / LCD / FTM |
| Broche 37 | PTD1 — GPIO / LCD / FTM |
| Broche 38 | PTD2 — GPIO / LCD / FTM |
| Broche 39 | PTD3 — GPIO / LCD / FTM |
| Broche 40 | PTD4 — GPIO / LCD / FTM |
| Broche 41 | PTD5 — GPIO / LCD / FTM |
| Broche 42 | PTD6 — GPIO / LCD |
| Broche 43 | PTD7 — GPIO / LCD |
| Broche 44 | PTC8 — GPIO / LCD |
| Broche 45 | PTC9 — GPIO / LCD |
| Broche 46 | PTC10 — GPIO / LCD |
| Broche 47 | PTC11 — GPIO / LCD |
| Broche 48 | PTC12 — GPIO / LCD |
| Broche 49 | PTC13 — GPIO / LCD |
| Broche 50 | PTC14 — GPIO / LCD |
| Broche 51 | PTC15 — GPIO / LCD |
| Broche 52 | PTE7 — GPIO / TSI |
| Broche 53 | PTE8 — GPIO |
| Broche 54 | PTE9 — GPIO |
| Broche 55 | PTE10 — GPIO |
| Broche 56 | PTE11 — GPIO |
| Broche 57 | PTE12 — GPIO |
| Broche 58 | PTE13 — GPIO |
| Broche 59 | PTE14 — GPIO |
| Broche 60 | PTE15 — GPIO |
| Broche 61 | RESET_b — Active-low reset |
| Broche 62 | EXTAL — External crystal/oscillator input |
| Broche 63 | XTAL — External crystal output |
| Broche 64 | VDDA/VREFH — Analog supply / ADC reference |
Applications typiques
MK12DX256VLH5 convient pour 6 applications: Industrial Human-Machine Interface (HMI) Panels, USB HID / Peripheral Devices, Electronic Metering and Sub-metering, Building Automation and HVAC Controllers, Portable Medical / Wellness Devices, Consumer White Goods with LCD Front Panels.
Industrial Human-Machine Interface (HMI) Panels
The MK12DX256VLH5 is purpose-built for industrial HMI panels that drive a segment LCD and need moderate DSP performance. Its integrated segment-LCD controller supports up to 8x36 segments without external driver ICs, the 50 MHz Cortex-M4 with FPU handles real-time control loops and on-screen graphics animation, and 256 KB flash accommodates localized UI strings plus multi-language asset tables. The 1.71-3.6 V supply range lets the MCU share a 3.3 V rail with the backlight driver and isolated communication PHY. Compared to a discrete MCU + driver design, the MK12DX256VLH5 cuts the BOM by one IC, simplifies the PCB, and shortens the firmware bring-up via the Kinetis SDK.
Recommandé
USB HID / Peripheral Devices
With USB 2.0 full-speed OTG and an on-chip transceiver, the MK12DX256VLH5 is well matched to USB keyboards, mice, barcode scanners, custom HID peripherals, and point-of-sale accessories. The integrated 5 V regulator pull-up and full-speed PHY remove the need for an external USB chip, reducing BOM cost and PCB area. The Cortex-M4 + FPU runs HID class stacks plus application firmware concurrently, and 32 KB SRAM is sufficient for HID report buffers and USB descriptors. The 64-LQFP package routes USB DP/DM directly without needing controlled-impedance internal layers beyond a single 90 ohm pair.
Recommandé
Electronic Metering and Sub-metering
The MK12DX256VLH5's segment-LCD drive combined with 16-bit ADC capability (derivative dependent) and DSP extensions suits single-phase and multi-function sub-metering designs. The 16-bit ADC can oversample energy channels while the Cortex-M4 executes real-time RMS/THD calculations; 256 KB flash holds tables, calibration coefficients, and metering firmware; 32 KB SRAM accommodates sample buffers and the LCD refresh list. The industrial -40 C to +105 C temperature range supports outdoor and panel-meter enclosures without additional derating.
Recommandé
Building Automation and HVAC Controllers
For HVAC wall controllers, smart thermostats, and building automation panels, the MK12DX256VLH5 balances segment-LDS display drive, USB service/debug, and Cortex-M4 DSP for sensor fusion. The MCU can run PID control loops, drive a segment LCD for room setpoint/status display, and communicate via UART/I2C to a wireless module or backhaul MCU. Wide 1.71-3.6 V supply tolerance allows direct operation from a 24 V-rail-derived 3.3 V supply without an extra regulator, and the industrial temperature grade supports basement and rooftop HVAC enclosures.
Recommandé
Portable Medical / Wellness Devices
Portable medical and wellness devices benefit from the MK12DX256VLH5's Cortex-M4 DSP for biosignal processing (e.g., heart-rate, pulse-oximetry trends), low-power run/wait/stop modes for battery life, and segment-LCD for on-device readouts. The 32 KB SRAM buffers sensor sample windows without external memory, and 256 KB flash holds firmware plus factory calibration. Industrial temperature grade ensures reliable operation across consumer and clinical environments. The 64-LQFP package supports small-form-factor handheld PCBs.
Recommandé
Consumer White Goods with LCD Front Panels
Washing machines, dishwashers, ovens, and induction cooktops with segment-LCD front panels match the MK12DX256VLH5 profile: segment-LCD drive, USB for service/diagnostics, UART/SPI/I2C to communicate with motor/relay drivers, and industrial temperature for hot-side enclosures. The 256 KB flash holds localized wash-cycle programs and audio feedback tables, and the Cortex-M4 DSP can run acoustic pattern-matching for status tones. The 1.71-3.6 V supply range lets the MCU run from the appliance's 5 V-standby-derived rail directly.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MK12DX256VLH5 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MK12DN512VLH5 | MK12DX256VMC5 |
|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 121-MAPBGA (8x8 mm) - different |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Program Flash | 256 KB | 512 KB (+100%) | 256 KB (same) |
| SRAM | 32 KB | 32 KB (same) | 32 KB (same) |
| CPU Core | Cortex-M4 with FPU + DSP | Cortex-M4 with FPU + DSP | Cortex-M4 with FPU + DSP |
| Max Frequency | 50 MHz | 50 MHz | 50 MHz |
| USB | USB 2.0 FS OTG with on-chip transceiver | USB 2.0 FS OTG with on-chip transceiver | USB 2.0 FS OTG with on-chip transceiver |
| Segment LCD | 8x36 segments, integrated | 8x36 segments, integrated | 8x36 segments, integrated |
| Supply Voltage | 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 |
Principaux différenciateurs
- Integrated segment LCD with on-chip charge pump reduces BOM (vs MKL16Z256VLH4)
- Cortex-M4 with FPU and DSP for higher performance (vs MK12DN512VLH5)
- Drop-in upgrade path to 512 KB flash (vs MK12DN512VLH5)
- USB 2.0 OTG with on-chip PHY simplifies USB designs (vs MKL26Z128VLH4)
Notes de conception
The MK12DX256VLH5 requires a single 1.71-3.6 V supply on VDD/VSS; place a 100 nF decoupling cap within 5 mm of each VDD pin and a bulk 4.7 uF on VDD with a 100 nF high-frequency bypass on VDDA/VREFH. If using the internal USB regulator, connect VREGIN to VBUS through a 10 uF/4.7 uF pair and tie VOUT33 to VDD only with the recommended 100 nF. Decoupling layout directly impacts ADC noise floor; share ground via a single-point star at the VDDA/VREFH bypass.
The 64-LQFP (10x10 mm, 0.5 mm pitch) requires 0.25 mm-wide traces and 0.20 mm vias for escape routing; route USB DP/DM as a 90 ohm differential pair with reference to the VSS plane and keep the pair length-matched within 150 mils. Place the EXTAL/XTAL crystal within 5 mm of pins 62/63 and guard it with a ground ring to minimize jitter. Segment-LCD signals should be routed away from switching power or USB signals to avoid LCD ghosting.
Do not enable USB without populating VREGIN/VOUT33 capacitors per the reference manual - the internal regulator will oscillate. The RESET_b pin must be pulled up externally with a 10 kohm resistor and have a 100 nF cap to ground for noise immunity. Always configure the flash security byte before production or the SWD/JTAG port remains open. Lastly, segment-LCD pins are shared with GPIO - check the K12 pin mux table for each derivative; misassigning a non-LCD pin as LCD will not display.
Estimated: at the K12 industrial operating temperature ceiling (105 C ambient) and full 50 MHz CPU activity with USB and segment LCD active, the 64-LQFP theta_JA (~47 C/W per typical LQFP-64 figures) yields ~95 C junction temperature rise over ambient - well within the 125 C Tj limit. No external heatsink is required. For sealed enclosures with restricted airflow, leave a minimum 4 mm clearance between the LQFP and other ICs to allow PCB copper to spread heat.
Informations de conformité
RoHS compliance per NXP product page (K12 sub-family). Not AEC-Q100 qualified - industrial temperature grade only (-40 C to +105 C). For automotive applications, choose a KEA or S32K family instead.
