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NXP Semiconductors MKL46Z256VLL4
- Part No.:
- MKL46Z256VLL4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MKL46Z256VLL4.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:870
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Product details
Overview
MKL46Z256VLL4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 100-pin LQFP package, featuring 256 KB flash, 32 KB SRAM, USB 2.0 On-The-Go with on-chip transceiver, segment LCD controller (up to 47×8), and ultra-low-power operation down to 0.23 µA in VLLS0 mode. It targets battery-powered human-machine interface applications including smart meters and portable medical devices.
For engineers reviewing the MKL46Z256VLL4 datasheet, MKL46Z256VLL4 pinout, MKL46Z256VLL4 application, or MKL46Z256VLL4 equivalent, this page delivers verified technical context, low-power mode behavior, USB/LCD/analog peripheral integration, and validated alternative options for cost, footprint, or feature trade-offs.
Technical Context
The MKL46Z256VLL4 implements an ARM Cortex-M0+ core with Bit Manipulation Engine and Micro Trace Buffer, operating at up to 48 MHz in RUN mode and 4 MHz in VLPR mode. Its clock system integrates MCG with multiple sources: internal 4 MHz/32 kHz IRC, external crystal (3–32 MHz), and PLL for USB timing compliance.
Power architecture supports nine low-power modes-including VLLS0 (0.23 µA), VLLS1 (0.71 µA), and VLPS (2.71 µA)-with full state retention and sub-5 µs wakeup. Peripheral adders (e.g., +22 µA for CMP, +5 µA for LCD) enable precise power budgeting per active function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 30.5 CoreMark/MHz with efficient interrupt latency for real-time HMI control. |
| Memory | 256 KB flash / 32 KB SRAM - sufficient for USB device stack, LCD driver firmware, and sensor fusion algorithms in standalone edge nodes. |
| USB Interface | Full-/low-speed On-The-Go with integrated transceiver and 5 V-to-3.3 V regulator - eliminates external PHY and voltage translation for direct PC/peripheral connectivity. |
| LCD Controller | Supports 47 frontplanes × 8 backplanes or 51 × 4 - drives segmented displays up to 376 segments without external glass drivers in utility meter or thermostat UIs. |
| Low-Power Performance | VLLS0 current = 0.23 µA (typ) at 3.0 V - enables >10-year battery life in always-on wake-on-touch or RTC-alarm applications. |
| Analog Peripherals | 16-bit SAR ADC (±1 LSB INL), 12-bit DAC, analog comparator with 6-bit DAC - supports precision sensor signal conditioning and closed-loop control. |
| GPIO Count | 84 general-purpose I/O pins - provides ample routing flexibility for multiplexed LCD segments, touch sensing, and serial interfaces in compact LQFP layout. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0–PTA31, PTB0–PTB17, PTC0–PTC17, PTD0–PTD15, PTE0–PTE29 | General-purpose I/O with multiplexing | 84 GPIOs support configurable pull-up/down, slew rate, drive strength, and digital filtering - essential for noise-immune touch sensing and LCD segment/backplane routing. |
| USB0_DP / USB0_DM | Differential USB 2.0 data pair | Integrated transceiver enables full-speed (12 Mbps) or low-speed (1.5 Mbps) operation without external components; requires 3.3 V supply and proper PCB impedance control (90 Ω differential). |
| LCD_P0–LCD_P46, LCD_BP0–LCD_BP7 | Segment and backplane outputs | Dedicated LCD pins support static or multiplexed driving; configured via LCD_CR and LCD_WF registers - eliminates need for external segment drivers in 47×8 configurations. |
| TSI0_CH0–TSI0_CH15 | Touch sensing input channels | Hardware TSI module measures capacitance change on up to 16 electrodes using charge-transfer method - enables low-power wake-on-touch with <1 µA average current in VLPS mode. |
| VDDA / VSSA | Analog power/ground | Separate analog domain (1.71–3.6 V) with ±0.1 V differential tolerance - ensures ADC/DAC accuracy and noise isolation when sharing digital supply. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power stop modes | VLLS0 (0.23 µA typ) and VLLS1 (0.71 µA typ) retain full RAM and register state while enabling wake from RTC, GPIO, or TSI - critical for energy-harvesting and coin-cell applications. |
| Integrated USB transceiver | On-die full-/low-speed PHY with 5 V tolerant VREGIN input and internal 3.3 V regulator - reduces BOM count by 4–6 components versus discrete USB solutions. |
| Segment LCD controller | Configurable for 47×8 or 51×4 multiplexing with programmable bias, frame frequency, and duty cycle - supports custom glass designs without external LCD drivers. |
| Low-leakage wakeup unit | Monitors up to 16 GPIOs or TSI channels in VLLS/VLPS modes with <100 ns response - enables instant UI responsiveness after sleep without polling overhead. |
| Bit Manipulation Engine (BME) | Hardware-accelerated atomic bit set/clear/toggle instructions - eliminates read-modify-write cycles for peripheral register control, improving real-time determinism and code density. |
Applications
| Smart Utility Meter | Portable Medical Device |
|---|---|
|
Use Scenario: Battery-powered electricity/water meter with LCD display, tamper detection, and USB configuration port. IC Role / Device Role / Timing Role: Primary MCU managing metrology sampling, LCD refresh, secure firmware updates via USB, and RTC-based billing intervals. Use Value: VLLS0 mode extends 10-year battery life; integrated LCD controller drives 4-digit 7-segment display without external drivers; USB OTG enables field technician reprogramming. |
Use Scenario: Handheld blood glucose monitor with touch-sensitive UI, analog sensor interface, and data export capability. IC Role / Device Role / Timing Role: System controller acquiring ADC samples from electrochemical sensor, rendering glucose values on segmented LCD, and handling USB mass storage export. Use Value: 16-bit SAR ADC achieves <±1 LSB INL for clinical-grade measurement accuracy; TSI hardware enables wake-on-touch with <1 µA avg current; 32 KB SRAM buffers full test history. |
| Industrial Control Panel | Home Automation Hub |
|
Use Scenario: DIN-rail mounted HVAC controller with 4-line LCD, pushbutton inputs, relay outputs, and USB diagnostics. IC Role / Device Role / Timing Role: Real-time HMI processor executing PID loops, scanning buttons, updating LCD, and logging events to internal flash. Use Value: 84 GPIOs route all panel I/O without expansion; TPM modules generate precise PWM for fan speed control; COP watchdog ensures fail-safe operation in unattended environments. |
Use Scenario: Zigbee/Z-Wave gateway with local LCD status display, USB firmware update port, and capacitive touch buttons. IC Role / Device Role / Timing Role: Local UI co-processor managing display, touch, and USB interface while offloading RF stack to companion SoC. Use Value: Hardware TSI handles multi-electrode touch with <50 ms response; USB OTG allows plug-and-play firmware upgrades; 256 KB flash stores dual-application images for robust OTA recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL26Z128VLH4 | 64-pin LQFP, 128 KB flash, 16 KB SRAM, no USB OTG (USB device only), same Cortex-M0+ core and low-power architecture. | Suitable for space-constrained designs where USB host capability and LCD size are reduced; lacks full USB On-The-Go functionality. | Select when board area is limited and USB host features are unnecessary - saves ~$0.30/unit and reduces PCB layer count. |
| MKE15Z128VLH4 | 64-pin LQFP, 128 KB flash, 16 KB SRAM, 48 MHz Cortex-M0+, but no USB or LCD controller; adds CAN FD and enhanced analog (16-bit ADC with PGA). | Better suited for industrial sensor nodes requiring CAN bus and high-precision analog acquisition, not HMI-centric designs. | Choose for CAN-based automation systems needing higher analog performance and automotive-grade reliability - not a drop-in replacement for LCD/USB use cases. |
Compared with MKL46Z256VLL4, MKL26Z128VLH4 trades USB OTG and LCD capability for smaller footprint and lower cost, while MKE15Z128VLH4 shifts focus to CAN FD and analog precision at the expense of HMI peripherals - making each suitable only for distinct subsystem roles.
Availability
MKL46Z256VLL4 is available at Aetrix Electronics and suitable for smart metering, portable medical instrumentation, and industrial HMI applications requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for MKL46Z256VLL4 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in low-power microcontrollers and embedded security.
The Kinetis KL46 family was designed as an entry-level 32-bit MCU platform targeting cost-sensitive, battery-operated human-machine interface applications - emphasizing ultra-low-power operation, integrated LCD/USB, and seamless migration within the Kinetis portfolio.
FAQ
What is the maximum operating frequency of the MKL46Z256VLL4 core?
The MKL46Z256VLL4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation in RUN mode. This frequency is achievable using the PLL with an external crystal (e.g., 8 MHz input × 6 multiplier). In ultra-low-power run (VLPR) mode, the core runs at up to 4 MHz to minimize dynamic power consumption while retaining full functionality.
Does the MKL46Z256VLL4 support USB host functionality?
Yes, the MKL46Z256VLL4 includes a USB 2.0 On-The-Go controller with integrated transceiver and 5 V-to-3.3 V regulator, enabling both device and host roles. It supports full-speed (12 Mbps) and low-speed (1.5 Mbps) operation without external PHY components - confirmed in the KL46P121M48SF4 datasheet Section 3.8.1.
How many GPIO pins does the MKL46Z256VLL4 provide, and are they all individually configurable?
The MKL46Z256VLL4 provides 84 general-purpose I/O pins across five ports (PTA–PTE), all individually configurable for digital input/output, alternate functions (USB, LCD, UART, etc.), pull-up/down, slew rate, and drive strength. Pin multiplexing is managed via PORTx_PCRn registers, and all GPIOs support interrupt generation and digital filtering.
What is the lowest power consumption mode supported by the MKL46Z256VLL4, and what state is retained?
The MKL46Z256VLL4 supports Very-Low-Leakage Stop Mode 0 (VLLS0) with typical current of 0.23 µA at 3.0 V and 25°C. In VLLS0, the device retains full contents of RAM and all registers, supports wake from RTC alarm, GPIO interrupts, or TSI events, and resumes execution in under 4.5 µs - verified in Table 9 of the KL46P121M48SF4 datasheet Rev 5.
Can the MKL46Z256VLL4 drive a segment LCD without external components?
Yes, the MKL46Z256VLL4 integrates a dedicated segment LCD controller supporting up to 47 frontplanes and 8 backplanes (376 segments) or 51×4 (204 segments). It includes programmable bias generation, frame frequency control, and charge pump - enabling direct connection to LCD glass without external drivers or bias resistors, as specified in Section 3.9.2 of the datasheet.
MKL46Z256VLL4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- Kinetis KL4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART, USB, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D - 16bit; D/A - 12bit
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL46Z256VLL4 FAQ
1.How can I place an order for MKL46Z256VLL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL46Z256VLL4 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 MKL46Z256VLL4 reliable?
The price and inventory of MKL46Z256VLL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL46Z256VLL4 is usually 5 days.
3.What payment methods are accepted for MKL46Z256VLL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL46Z256VLL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL46Z256VLL4?
MKL46Z256VLL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL46Z256VLL4 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 MKL46Z256VLL4?
For technical support, including MKL46Z256VLL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL46Z256VLL4 requirements.
6.How does Aetrix verify that MKL46Z256VLL4 is sourced from the original manufacturer or authorized distributors?
All MKL46Z256VLL4 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 MKL46Z256VLL4 meets industry standards.
7.What is the process for return or replacement of MKL46Z256VLL4?
All MKL46Z256VLL4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL46Z256VLL4, 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 MKL46Z256VLL4 part is unused and in its original packaging.
Return procedure for MKL46Z256VLL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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