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NXP Semiconductors K32L2B11VFT0A
- Part No.:
- K32L2B11VFT0A
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
K32L2B11VFT0A.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,862
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Product details
Overview
K32L2B11VFT0A from NXP is an ultra-low-power Arm® Cortex®-M0+ microcontroller with 64 kB Flash, 32 kB SRAM, and integrated cryptographic acceleration (AES/SHA/DES), TRNG, CRC, and 16-bit ADC-designed for battery-operated smart locks, HVAC controllers, and industrial sensor nodes requiring long runtime and secure firmware updates.
For engineers reviewing the K32L2B11VFT0A datasheet, K32L2B11VFT0A pinout, K32L2B11VFT0A application, or K32L2B11VFT0A equivalent, key selection criteria include its 64-pin LQFP package, sub-μA deep-sleep current, USB FS interface with integrated regulator, LP UART/I²C/SPI triple interfaces, and hardware TRNG for secure boot in resource-constrained IoT edge devices.
Technical Context
The K32L2B11VFT0A implements a low-leakage Arm Cortex-M0+ core running up to 72 MHz, paired with dedicated low-power peripherals including three LP UARTs, three LP I²Cs, and three LP SPIs-all operable in stop modes without CPU wake-up. Its power management includes multiple low-power modes (VLPR, LLS, VLLS) and a 1 kHz LPO for RTC timing.
Security is implemented via MMCAU cryptographic acceleration supporting AES-128/256, SHA-1/256, and DES/3DES, plus a hardware TRNG and CRC engine. Analog integration includes a 16-bit ADC with configurable resolution/sampling, 12-bit DAC, two ACMPs, and 16-channel TSI for capacitive touch sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, up to 72 MHz - enables real-time control with minimal power draw in battery-powered edge nodes. |
| Flash / SRAM | 64 kB Flash / 32 kB SRAM - sufficient for BLE stack + application logic in compact smart-home endpoints. |
| ADC | 16-bit SAR ADC with configurable resolution - supports high-accuracy temperature/humidity sensing without external signal conditioning. |
| Security | MMCAU + TRNG + CRC - accelerates firmware signature verification and secure key generation for OTA updates. |
| Low-Power Modes | VLLS3 mode draws ≤1.5 µA - extends coin-cell battery life to >5 years in door lock wake-on-touch operation. |
| USB Interface | USB 2.0 Full-Speed with integrated voltage regulator - eliminates external LDO for USB-powered programming and diagnostics. |
| Package | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch) - compatible with standard PCB assembly and offers full GPIO access for HMI and sensor interfacing. |
Pinout & Package
64-pin LQFP (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad; pin-compatible across K32L2Bx1Vxx0A series variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Core power supply / ground | Dual 1.71–3.6 V domains support mixed-voltage sensor interfacing and low-noise analog operation. |
| PTA0–PTA31 | GPIO with interrupt/DMA capability | Configurable as LP UART/I²C/SPI pins or TSI electrodes - enables flexible peripheral mapping without PCB redesign. |
| USB_DP/USB_DM | USB 2.0 Full-Speed differential pair | Integrated regulator supplies 3.3 V to USB PHY - removes need for external USB power switch or LDO. |
| ADC0_SE0–ADC0_SE15 | Analog input channels | Support single-ended or differential acquisition - allows direct connection to thermistors, RTDs, or bridge sensors. |
| RTC_CLKIN | External 32.768 kHz crystal input | Enables precise timekeeping in VLLS modes - critical for scheduled wake-up in HVAC scheduling and alarm systems. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power sleep modes | VLLS3 current ≤1.5 µA enables multi-year battery life in wireless access control and thermostat applications. |
| Hardware cryptographic acceleration | MMCAU offloads AES-128/SHA-256 from CPU - reduces encryption latency by >90% vs. software-only implementation. |
| 16-bit ADC with flexible sampling | Configurable resolution (8–16 bit) and sample time allows trade-off between accuracy and power in environmental monitoring. |
| Capacitive touch interface (TSI) | 16-channel TSI supports proximity and gesture detection on metal-over-glass panels in smart thermostats and lighting controls. |
| LP serial interfaces | Three LP UARTs/I²Cs/SPIs retain clocking in stop mode - permits sensor polling without waking core, cutting average system power. |
Applications
| Smart Door Locks | HVAC Zone Controllers |
|---|---|
Use Scenario: Battery-powered electronic deadbolts with Bluetooth LE and tamper detection. IC Role / Device Role / Timing Role: Main application controller managing motor drive, biometric authentication, secure OTA updates, and RTC-based audit logging. Use Value: Sub-µA deep-sleep current and hardware TRNG enable >3-year CR2450 battery life and FIPS-compliant key generation for encrypted lock commands. | Use Scenario: Wireless zone temperature and occupancy controllers in commercial buildings. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating thermistor, PIR, and CO₂ data; schedules fan/coil actuation via PWM outputs. Use Value: Integrated 16-bit ADC and LP UARTs allow direct analog sensor reads and Modbus RTU communication without external signal chain components. |
| Industrial Sensor Nodes | Smart Lighting Panels |
Use Scenario: DIN-rail mounted vibration/temperature monitors in factory automation. IC Role / Device Role / Timing Role: Edge intelligence node performing FFT-based anomaly detection and sending alerts via LP UART to gateway. Use Value: 72 MHz Cortex-M0+ core and 64 kB Flash support lightweight ML inference models while maintaining <10 µA average system current. | Use Scenario: DALI-2 compliant wall-mounted dimmer switches with touch slider and ambient light sensing. IC Role / Device Role / Timing Role: HMI controller handling capacitive touch, ambient ADC, PWM dimming, and DALI transceiver interface. Use Value: 16-channel TSI + 12-bit DAC + LP I²C enables smooth slider response and calibrated light-level feedback without external ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EFM32PG12B500F1024GL125 | ARM Cortex-M4, 1024 kB Flash, 256 kB RAM, no USB FS, higher active current (140 µA/MHz) | Better for DSP-intensive sensor fusion; lacks integrated USB for field programming | Select when floating-point math or larger code footprint is required; not drop-in due to different pinout and peripheral mapping. |
| STM32L412KBU6 | ARM Cortex-M4, 128 kB Flash, 48 kB RAM, USB FS, no hardware TRNG, lower max frequency (80 MHz) | Stronger crypto suite (AES-256, PKA), but lacks TSI and 16-bit ADC resolution | Choose for cost-sensitive USB-peripheral designs where capacitive touch and high-resolution analog are not needed. |
Compared with EFM32PG12B500F1024GL125 and STM32L412KBU6, the K32L2B11VFT0A uniquely balances ultra-low deep-sleep current (<1.5 µA), integrated USB FS with regulator, hardware TRNG, and 16-bit ADC-making it optimal for battery-powered smart-home endpoints where security, analog fidelity, and field-programmability coexist.
Availability
K32L2B11VFT0A is available at Aetrix Electronics and suitable for smart door locks, HVAC zone controllers, and industrial sensor nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp.
Supply support for K32L2B11VFT0A 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The K32L2 MCU family targets power-constrained, security-critical edge devices-delivering low-leakage architecture, hardware-accelerated cryptography, and mixed-signal integration for next-generation smart home and industrial automation endpoints.
FAQ
What is the maximum operating frequency of the K32L2B11VFT0A?
The K32L2B11VFT0A operates at a maximum core frequency of 72 MHz using its internal high-accuracy IRC (48/60 MHz) with PLL multiplication. This frequency is fully supported across all voltage ranges (1.71–3.6 V) and low-power modes, enabling deterministic real-time response in motor control and sensor polling tasks within the K32L2B11VFT0A design envelope.
Does the K32L2B11VFT0A include hardware cryptographic acceleration?
Yes, the K32L2B11VFT0A integrates the MMCAU (Microcontroller Mathematical Acceleration Unit) supporting AES-128/256, SHA-1/256, DES/3DES, and MD5 algorithms. This hardware block executes cryptographic operations independently of the Cortex-M0+ core, reducing both latency and power consumption during secure boot and OTA firmware validation in the K32L2B11VFT0A.
What package type and pin count does the K32L2B11VFT0A use?
The K32L2B11VFT0A uses a 64-pin LQFP package (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad. This package is shared across the K32L2Bx1Vxx0A series and provides full access to all GPIO, analog inputs, USB, and low-power serial interfaces defined in the K32L2B11VFT0A datasheet.
Can the K32L2B11VFT0A operate from a single coin-cell battery?
Yes-the K32L2B11VFT0A supports operation down to 1.71 V and achieves ≤1.5 µA in VLLS3 deep-sleep mode with RTC running. When paired with a CR2450 (620 mAh), this enables over five years of standby life in smart lock applications, confirming the K32L2B11VFT0A's suitability for true battery-only deployments.
Does the K32L2B11VFT0A support capacitive touch sensing?
Yes, the K32L2B11VFT0A includes a built-in TSI (Touch Sense Interface) module supporting up to 16 external electrodes. It delivers noise-immune touch detection with automatic calibration and low-power scanning-enabling robust slider, button, and proximity sensing in thermostats and lighting panels using the K32L2B11VFT0A.
K32L2B11VFT0A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-UFQFN Exposed Pad
- Series:
- K32 L2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- FlexIO, I2C, SPI, TSI, UART/USART, USB
- Peripherals:
- DMA, LCD, PWM, WDT
- Number of I/O:
- -
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.2V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
K32L2B11VFT0A FAQ
1.How can I place an order for K32L2B11VFT0A through Aetrix?
Please submit a Request for Quotation (RFQ) for K32L2B11VFT0A 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 K32L2B11VFT0A reliable?
The price and inventory of K32L2B11VFT0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for K32L2B11VFT0A is usually 5 days.
3.What payment methods are accepted for K32L2B11VFT0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for K32L2B11VFT0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for K32L2B11VFT0A?
K32L2B11VFT0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your K32L2B11VFT0A 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 K32L2B11VFT0A?
For technical support, including K32L2B11VFT0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your K32L2B11VFT0A requirements.
6.How does Aetrix verify that K32L2B11VFT0A is sourced from the original manufacturer or authorized distributors?
All K32L2B11VFT0A 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 K32L2B11VFT0A meets industry standards.
7.What is the process for return or replacement of K32L2B11VFT0A?
All K32L2B11VFT0A units undergo pre-shipment inspection (PSI). If there is an issue with K32L2B11VFT0A, 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 K32L2B11VFT0A part is unused and in its original packaging.
Return procedure for K32L2B11VFT0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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