MKL46Z256VLL4 - 48MHz Cortex-M0+ MCU, 256KB Flash, USB, LCD | NXP
Référence : MKL46Z256VLL4 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.42 | $7,42 |
| 10 | $6.85 | $68,50 |
| 100 | $6.12 | $612,00 |
| 500 | $5.48 | $2 740,00 |
| 1 000 | $4.95 | $4 950,00 |
MKL46Z256VLL4 Présentation
A Cortex-M0+ microcontroller is an entry-level 32-bit ARM core optimized for energy efficiency and deterministic interrupt handling in embedded systems. It sits below the Cortex-M3/M4 in the ARMv6-M hierarchy and is widely adopted in cost-sensitive applications such as electronic scales, flow meters, smart thermostats, wearable health monitors, and IoT sensor nodes where every microamp of quiescent current and every dollar of silicon matters.
Key features of the MKL46Z256VLL4 include 50 uA/MHz typical run-mode current, sub-uA deep-sleep modes, a 12-bit SAR ADC, 16-bit timers, DMA, I2C, SPI, UART, low-power UART, and an integrated segment LCD driver that eliminates the need for an external LCD bias generator. The full-speed USB device interface enables charging port and data-logging applications. The 100-LQFP package provides ample GPIO for segment-LCD designs while remaining hand-solderable for prototypes.
From an architectural standpoint, the KL46 silicon pairs the Cortex-M0+ core (ARMv6-M, Thumb/Thumb-2 instruction set) with a tightly-coupled low-leakage SRAM and a flexible peripheral bridge. The new compute mode allows the CPU to wake briefly, perform signal processing, and return to a deep retention state, reducing dynamic power by placing peripherals in an asynchronous stop state. The 256 KB flash supports both DFlash-style EEPROM emulation and on-the-fly firmware updates.
Typical applications span battery-powered metering, electronic shelf labels, consumer health devices, USB charging and data cables, HVAC thermostats, industrial flow meters, and entry-level wearables. The combination of USB device, segment LCD, and ultra-low-power compute mode makes the MKL46Z256VLL4 a strong fit for handheld, mains-free devices where battery life, BOM cost, and display integration are simultaneously critical.
A key design consideration is the external supply decoupling network and segment-LCD bias capacitor network: a 4.7 uF bulk plus 100 nF per supply pin is recommended, and the LCD_VLL1/VLL2/VLL3 charge-pump caps must be sized per the datasheet to avoid ghosting on high-segment-count displays. The 100-LQFP exposes up to 84 GPIO, with many pins shared between LCD segment lines and digital peripherals, so pin mux planning is essential.
This page consolidates Kinetis family data, drop-in package-compatible Kinetis alternatives, and design notes beyond the manufacturer datasheet, intended as a working reference for embedded engineers evaluating this MCU.
Alternatives de remplacement direct pour MKL46Z256VLL4 — 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 MKL46Z256VLL4 (même facteur de forme et même empreinte) — différant par Low-Power Modes, Mounting Type, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MKL46Z256VLH4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MKL46Z128VLL4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MKL26Z256VLL4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MKL46Z256VMC4
✅ Remplacement direct✓ En stock
$5.6 / unité
Voir la fiche technique →MKL46Z256VLL4R
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MKL04Z8VFK4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MKL46Z256VLL4 Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M0+ (ARMv6-M, Thumb/Thumb-2) |
| Maximum CPU Frequency | 48 MHz |
| Program Flash Memory | 256 KB |
| SRAM | 32 KB |
| USB | USB 2.0 Full-Speed Device |
| LCD Controller | Segment LCD, up to 8x40 segments |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Run Mode Current | 50 uA/MHz (typical) |
| Low-Power Modes | Wait, Stop, VLPS, VLLS0/1/3, Compute |
| Boîtier | 100-LQFP (14x14 mm) |
| Nombre de broches | 100 |
| GPIO | Up to 84 (shared with LCD segment pins) |
| Plage de température de fonctionnement | -40 C to +105 C (industrial) |
| Communication Peripherals | I2C x2, SPI x2, UART x3, LPUART, USB |
| Timers | FlexTimer, Programmable Delay Block, 16-bit Low-Power Timer, RTC |
| DMA | Yes (8-channel) |
| Type de montage | Surface Mount (LQFP) |
| Statut RoHS | Compliant |
| Family | Kinetis KL4x Sub-Family (KL46) |
Configuration des broches de MKL46Z256VLL4
| Broche 1 | PTE0 — GPIO / LCD segment / ADC |
| Broche 10 | PTE6 — GPIO / LCD segment |
| Broche 20 | VDD — Supply voltage (1.71V-3.6V) |
| Broche 30 | PTA18 — EXTAL / crystal oscillator |
| Broche 40 | PTB8 — GPIO / LCD segment |
| Broche 50 | PTC6 — GPIO / LCD segment |
| Broche 60 | USB0_DP — USB D+ data line |
| Broche 70 | PTD4 — GPIO / LCD segment |
| Broche 80 | PTE16 — GPIO / LCD segment |
| Broche 90 | PTF6 — GPIO / LCD segment |
| Broche 100 | VSS — Ground |
Applications typiques
MKL46Z256VLL4 convient pour 8 applications: Battery-Powered Smart Meter with LCD, Electronic Thermostat with Segment LCD, USB Charging Cable and Data Logger, Wearable Health and Fitness Tracker, Industrial Flow Meter and Process Sensor, IoT Sensor Node with Edge Processing, HVAC Control Panel with User Interface, Consumer Smart Home Wireless Switch.
Battery-Powered Smart Meter with LCD
The MKL46Z256VLL4 is an ideal fit for battery-powered smart meters combining low-power operation with on-board segment LCD and 256 KB firmware headroom. Its integrated segment LCD controller supports up to 8x40 segments via an internal charge pump, removing external bias resistors and reducing BOM cost. The Cortex-M0+ core at 48 MHz handles metering computation while the 50 uA/MHz run current and sub-uA VLLS deep-sleep modes extend battery life to multi-year ranges. Engineers can leverage the 16-bit timers for precise pulse counting and the low-power UART for AMR/AMI modules.
Recommandé
Electronic Thermostat with Segment LCD
The MKL46Z256VLL4 suits electronic thermostat designs that require a segment LCD, ultra-low-power compute, and a Cortex-M0+ core for user-interface logic. Its segment LCD driver supports up to 8x40 segments with internal charge pump and software-configurable contrast, allowing direct connection of the glass display without external bias. The compute mode wakes the CPU briefly to read temperature sensors via ADC, then returns to VLLS retention, drawing under 2 uA between samples. USB Full-Speed device simplifies firmware update via standard micro-USB cables.
Recommandé
USB Charging Cable and Data Logger
The MKL46Z256VLL4 powers USB charging cables and portable data loggers through its integrated USB 2.0 Full-Speed device controller with battery charging specification (BCS) detection. The on-chip USB PHY and pull-up resistor eliminate the external PHY, while 256 KB flash comfortably fits USB stack plus application code. The 50 uA/MHz run current keeps total idle draw under 100 uA, well within USB suspend requirements of 2.5 mA. RTC with sub-uA standby mode enables accurate timestamp logging across days of disconnection.
Recommandé
Wearable Health and Fitness Tracker
The MKL46Z256VLL4 is well-suited to wearable health and fitness trackers that demand long battery life, small PCB area, and on-board display. The segment LCD interface displays heart rate, step count, and battery status without an expensive TFT controller, while the 256 KB flash supports Bluetooth Low Energy profile stacks alongside application firmware. The Cortex-M0+ with compute mode allows the device to sample sensors at intervals, returning to deep-sleep between events. The 100-LQFP 14x14 mm package is hand-solderable for prototype boards.
Recommandé
Industrial Flow Meter and Process Sensor
The MKL46Z256VLL4 drives industrial flow meters and process sensors that combine analog signal conditioning, segment LCD readout, and ultra-low standby power. Its 16-bit SAR ADC option captures low-level sensor outputs, while the segment LCD displays flow rate and totals in harsh industrial environments without external bias components. The 100-LQFP package offers 84 GPIO for keypad input, multi-channel ADC, and pulse output to SCADA systems. The KL46 datasheet confirms operation across -40 C to +105 C industrial temperature range with deterministic interrupt latency.
Recommandé
IoT Sensor Node with Edge Processing
The MKL46Z256VLL4 functions as an entry-level IoT sensor node with on-board edge processing before cloud transmission. The 32 KB SRAM holds local sensor data buffers, while the Cortex-M0+ at 48 MHz performs basic filtering, threshold detection, and pre-aggregation. The integrated USB device simplifies provisioning and firmware updates in the field. Low-power UART and I2C connect to common wireless modules for sub-GHz, BLE, or LoRa backhaul, with the compute mode keeping average draw below 100 uA for multi-year coin-cell operation in remote deployments.
Recommandé
HVAC Control Panel with User Interface
The MKL46Z256VLL4 powers HVAC control panels that combine a segment LCD user interface, multiple sensor inputs, and isolated communication interfaces. The segment LCD controller drives 4-digit temperature displays plus status icons without external bias, and the 12-bit ADC reads thermistor inputs from NTC sensors. I2C and SPI connect to airflow and humidity sensors, while LPUART supports isolated RS-485 Modbus communication. The 50 uA/MHz run current enables Power-over-Ethernet operation within the 802.3af class budget.
Recommandé
Consumer Smart Home Wireless Switch
The MKL46Z256VLL4 fits battery-powered wireless light switches and smart home buttons that require long battery life and reliable user input handling. The segment LCD shows status and pairing information, while capacitive touch sensing via the touch sensing interface (TSI) module detects button presses without mechanical switches. USB Full-Speed device provides a backup configuration port, and the RTC wakeup timer triggers periodic transmissions to the wireless hub. The compute mode and VLLS0/1 retention enable years of operation from a single CR2032 coin cell.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MKL46Z256VLL4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MKL46Z256VLH4 | MKL46Z128VLL4 | MKL26Z256VLL4 | MKL46Z256VMC4 | MKL04Z8VFK4 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 100-LQFP (14x14 mm) | 64-LQFP (different pin count, same die) | 100-LQFP (same) | 100-LQFP (same) | 100-LQFP (same) | 100-LQFP (same) |
| Core | ARM Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz |
| Flash Memory | 256 KB | 256 KB | 128 KB | 256 KB | 256 KB | 8 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 1 KB |
| Segment LCD Controller | Yes (8x40, internal charge pump) | Yes (8x40) | Yes (8x40) | No | Yes (8x40) | No |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device + USB OTG | USB 2.0 Full-Speed Device | No USB |
| Supply Voltage Range | 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 |
Principaux différenciateurs
- Integrated segment LCD controller with internal charge pump (vs MKL26Z256VLL4)
- Lower flash variant for cost-down designs (vs MKL46Z128VLL4)
- 256 KB flash at 100-LQFP vs 8 KB flash at same package (vs MKL04Z8VFK4)
Notes de conception
Estimated: at 48 MHz CPU clock with all peripherals enabled, total active current is approximately 50 uA/MHz x 48 MHz = 2.4 mA plus peripheral bias. For battery-powered designs, use the VLLS0 or VLLS1 mode (sub-uA retention) for idle periods and the new compute mode for sampling intervals, allowing typical average current below 100 uA across multi-second sleep cycles. Decoupling must include 4.7 uF bulk + 100 nF per VDD pin per the KL46 hardware design considerations.
The 100-LQFP package exposes up to 84 GPIO with many shared with segment LCD segment lines, requiring careful pin-mux planning. Place the 32.768 kHz crystal close to PTA18/PTA19 with guard traces and a ground plane beneath, and route USB DP/DM as a 90-ohm differential pair with matched length within 150 mil. Connect VLL1/VLL2/VLL3 charge-pump capacitors for LCD with 1 uF ceramic per the datasheet reference manual to avoid display ghosting.
Do not exceed 3.6 V on any I/O pin including USB VBUS; use an external TVS or LDO for over-voltage protection on USB. Ensure the segment LCD charge pump capacitors are placed within 5 mm of the LCD_VLL pins to prevent ground-bounce noise. The KL46 silicon has known errata for the I2C module in certain stop modes - consult the latest NXP errata document before locking the firmware release.
Informations de conformité
RoHS and lead-free per NXP product page. AEC-Q100 automotive qualification is not standard for the KL46 consumer/industrial sub-family - refer to NXP automotive Kinetis families for AEC-Q100 alternatives.