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NXP Semiconductors LPC11U14FHN33/201,
- Part No.:
- LPC11U14FHN33/201,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC11U14FHN33/201,.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,460
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Product details
Overview
LPC11U14FHN33/201 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in HVQFN33 package, operating at up to 50 MHz with 32 kB flash, 6 kB SRAM (4 kB main + 2 kB USB), and integrated Full-Speed USB 2.0 device controller. It delivers low-power embedded control for USB-connected peripherals requiring deterministic timing, analog sensing, and multi-protocol serial interfacing.
For engineers reviewing the LPC11U14FHN33/201 datasheet, LPC11U14FHN33/201 pinout, LPC11U14FHN33/201 application, or LPC11U14FHN33/201 equivalent, key selection criteria include USB device stack readiness, 10-bit ADC with 8-channel multiplexing, dual SSP interfaces, I²C Fast-mode Plus support up to 1 Mbit/s, and wake-up capability from Deep power-down mode via dedicated WAKEUP pin.
Technical Context
The LPC11U14FHN33/201 implements an ARM Cortex-M0 core with NVIC and NMI support, paired with two independent PLLs-one for CPU clocking (up to 50 MHz) and one dedicated to USB. Its memory subsystem includes 32 kB flash with ISP/IAP, 6 kB SRAM split into main and USB-specific banks, and 16 kB boot ROM containing power profiles and integer division routines.
Digital peripherals include four general-purpose timers (two 32-bit, two 16-bit), programmable Windowed WatchDog Timer with internal low-power oscillator, and GPIO with configurable pull-up/pull-down, glitch filtering, and high-current drive (20 mA sink on P0_4/P0_5, 20 mA source on P0_7). Analog functionality centers on an 8-input, 10-bit ADC with no external reference required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, supports Thumb-2 instruction set for compact code size and efficient interrupt handling. |
| Max Clock Frequency | 50 MHz - enables real-time response in USB audio streaming, sensor fusion, and industrial control loops. |
| Flash Memory | 32 kB - sufficient for full USB device stack (CDC/HID), application logic, and firmware updates via ISP/IAP. |
| SRAM | 6 kB total (4 kB main + 2 kB USB) - separates USB descriptor/buffer memory from application data to prevent contention. |
| USB Interface | Full-Speed USB 2.0 device controller - supports CDC, HID, and MSC classes without external PHY; includes SoftConnect feature. |
| ADC | 10-bit SAR with 8 input channels - provides direct sensor interface (e.g., temperature, pressure) with no external signal conditioning needed. |
| I²C Bus | Fast-mode Plus compliant (1 Mbit/s) - enables high-speed communication with EEPROMs, sensors, and displays while maintaining noise immunity. |
| GPIO Pins | 26 configurable pins in HVQFN33 package - includes 8 interrupt-capable inputs, programmable glitch filter on selected pins, and true open-drain outputs. |
Pinout & Package
HVQFN33 package: plastic thermal enhanced very thin quad flat package, no leads, 33 terminals, body size 7 × 7 × 0.85 mm. Exposed thermal pad improves power dissipation in compact USB peripheral designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO | Active-low reset with 20 ns glitch filter; doubles as debug select (LOW = JTAG, HIGH = SWD); must be pulled HIGH externally in Deep power-down mode. |
| USB_DP / USB_DM | USB differential pair | Full-Speed USB 2.0 D+ and D− lines; require 27 Ω series resistors and proper PCB routing for EMI compliance. |
| PIO0_1/CLKOUT/USB_FTOGGLE | Multi-function pin | Provides USB 1 ms Start-of-Frame toggle signal or system clock output; used during UART ISP entry when pulled LOW with PIO0_3. |
| PIO0_3/USB_VBUS | USB VBUS monitor | Detects presence of USB bus power (5 V); enables automatic enumeration only when VBUS is valid. |
| PIO0_6/USB_CONNECT/SCK0 | USB SoftConnect / SSP0 clock | Controls internal 1.5 kΩ pull-up resistor on D+ for software-initiated USB connect/disconnect; also serves as SSP0 serial clock. |
| PIO0_15/AD4/CT32B1_MAT2/SWDIO | Debug / ADC / timer / GPIO | Primary SWD debug I/O; supports analog input (AD4), match output for 32-bit timer 1, and general-purpose digital I/O with pull-up enabled at reset. |
| PIO0_16/AD5/CT32B1_MAT3/WAKEUP | Wake-up / ADC / timer | Dedicated Deep power-down wake-up pin with 20 ns glitch filter; also functions as ADC input 5 and timer match output. |
| VDD / VSS | Power / Ground | Single 3.3 V supply (1.8–3.6 V range); VDD also serves as ADC reference voltage - requires local 100 nF decoupling per supply pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual PLL architecture | Separate CPU and USB PLLs eliminate clock domain conflicts and ensure stable USB timing independent of system clock scaling. |
| USB SoftConnect | Software-controlled 1.5 kΩ pull-up on D+ enables hot-plug detection and enumeration without mechanical switch or external components. |
| Power management unit (PMU) | Four low-power modes (Sleep, Deep-sleep, Power-down, Deep power-down) with wake-up sources including GPIO, USB activity, and dedicated WAKEUP pin. |
| Boot ROM APIs | Pre-integrated power profile functions simplify transition between performance and ultra-low-power states with single API call. |
| 5 V tolerant GPIO | 26 pins support 5 V logic levels - simplifies interface with legacy peripherals and level-shifting circuits without external translators. |
| I²C Fast-mode Plus | 1 Mbit/s operation with multiple address recognition and monitor mode - enables robust communication in noisy industrial environments. |
Applications
| USB Audio Devices | Handheld Scanners |
|---|---|
Use Scenario: Compact USB-powered headset or microphone with real-time audio processing and volume control. IC Role / Device Role / Timing Role: Main MCU executing USB Audio Class (UAC) firmware, managing I²C-connected DAC/ADC, and servicing 1 ms SOF interrupts. Use Value: Integrated USB controller and 2 kB USB SRAM eliminate external PHY and reduce BOM cost; 50 MHz CPU handles sample rate conversion and echo cancellation. | Use Scenario: Battery-operated barcode scanner with laser trigger, decode engine, and USB HID keyboard emulation. IC Role / Device Role / Timing Role: Central controller managing laser driver timing, CMOS image sensor interface, and USB HID report generation. Use Value: Deep power-down mode with WAKEUP pin enables <1 µA standby current; 10-bit ADC reads battery voltage and ambient light for adaptive brightness. |
| Medical Sensors | Industrial Control |
Use Scenario: Portable pulse oximeter using red/IR photodiodes and analog front-end with digital signal processing. IC Role / Device Role / Timing Role: Signal acquisition MCU sampling ADC at 1 kHz, performing FFT-based SpO₂ calculation, and transmitting results over USB CDC. Use Value: 8-channel 10-bit ADC with internal reference eliminates external voltage reference IC; USB device stack supports certified medical data transfer protocols. | Use Scenario: DIN-rail mounted USB-to-RS-485 converter for PLC communication in factory automation. IC Role / Device Role / Timing Role: Protocol bridge translating USB CDC commands to RS-485 UART frames with hardware flow control (RTS/CTS). Use Value: USART with fractional baud rate generator supports non-standard rates (e.g., 38.4 kbps for Modbus RTU); 5 V tolerant GPIO interfaces directly with RS-485 transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11U14FBD48/201 | Same core, flash, and peripherals but in LQFP48 package with 40 GPIO pins instead of 26. | Requires PCB redesign due to larger footprint and different pin count; suitable when more I/O or additional timer capture inputs (CT32B0_CAP1) are needed. | Select when board layout allows LQFP48 and application demands >26 GPIO or CT32B0_CAP1 functionality not available in HVQFN33. |
| LPC11U24FHN33/201 | Higher flash (64 kB) and SRAM (8 kB), adds second USB port and CAN interface; same HVQFN33 package and pinout. | Enables dual-role USB (device + host) and CAN bus connectivity - over-spec for pure USB device use but future-proof for field upgrades. | Choose when roadmap includes CAN diagnostics or USB host capability; pin-compatible drop-in upgrade path exists. |
Compared with LPC11U14FBD48/201, the LPC11U14FHN33/201 saves board space and cost in compact USB peripherals; versus LPC11U24FHN33/201, it reduces firmware complexity and power consumption where CAN or dual USB is unnecessary.
Availability
LPC11U14FHN33/201 is available at Aetrix Electronics and suitable for USB audio devices, handheld scanners, and medical sensors requiring stable component supply, long-term manufacturability, and NXP's industrial-grade qualification.
Supply support for LPC11U14FHN33/201 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 applications, with deep expertise in ARM-based microcontrollers and USB ecosystem integration.
The LPC11U1x product line was designed specifically for cost-sensitive, USB-connected embedded systems requiring low power, small footprint, and rapid time-to-market - targeting consumer peripherals, portable medical devices, and industrial gateways.
FAQ
What is the maximum operating frequency of the LPC11U14FHN33/201?
The LPC11U14FHN33/201 operates at a maximum CPU frequency of 50 MHz, achieved using either the internal 12 MHz IRC oscillator with PLL multiplication or an external crystal (1–25 MHz) fed into the system oscillator. This frequency is fully supported across the specified industrial temperature range (−40 °C to +85 °C) and 1.8–3.6 V supply voltage.
Does the LPC11U14FHN33/201 support USB device functionality without external components?
Yes, the LPC11U14FHN33/201 integrates a Full-Speed USB 2.0 device controller with on-chip transceiver, eliminating the need for an external PHY. Its USB SoftConnect feature uses an internal 1.5 kΩ pull-up resistor on D+, controllable via software through the USB_CONNECT pin (P0_6), enabling fully autonomous USB enumeration.
How many analog inputs does the LPC11U14FHN33/201 ADC support?
The LPC11U14FHN33/201 features a 10-bit successive approximation register (SAR) ADC with eight analog input channels (AD0–AD7), mapped to specific GPIO pins including PIO0_11 through PIO0_16 and PIO0_22/PIO0_23. All channels share a common reference tied to VDD, requiring no external reference circuitry.
What low-power modes are available on the LPC11U14FHN33/201?
The LPC11U14FHN33/201 supports four reduced-power modes: Sleep (core clock stopped, peripherals active), Deep-sleep (peripherals clock gated), Power-down (all clocks stopped except wake-up sources), and Deep power-down (only WAKEUP pin and reset functional). Wake-up sources include GPIO, USB activity, watchdog interrupt, and the dedicated WAKEUP pin (P0_16).
Is the LPC11U14FHN33/201 pin-compatible with other members of the LPC11U1x family?
Yes, the LPC11U14FHN33/201 shares identical pinout and electrical characteristics with other HVQFN33 variants in the LPC11U1x family, including LPC11U12FHN33/201 and LPC11U14FHI33/201. This enables direct substitution within the same package footprint, provided flash and SRAM requirements align with the target application.
LPC11U14FHN33/201, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VQFN Exposed Pad
- Series:
- LPC11Uxx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, Microwire, SmartCard, SPI, SSP, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 26
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC11U14FHN33/201, FAQ
1.How can I place an order for LPC11U14FHN33/201, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11U14FHN33/201, 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 LPC11U14FHN33/201, reliable?
The price and inventory of LPC11U14FHN33/201, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11U14FHN33/201, is usually 5 days.
3.What payment methods are accepted for LPC11U14FHN33/201,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11U14FHN33/201, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11U14FHN33/201,?
LPC11U14FHN33/201, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11U14FHN33/201, 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 LPC11U14FHN33/201,?
For technical support, including LPC11U14FHN33/201, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11U14FHN33/201, requirements.
6.How does Aetrix verify that LPC11U14FHN33/201, is sourced from the original manufacturer or authorized distributors?
All LPC11U14FHN33/201, 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 LPC11U14FHN33/201, meets industry standards.
7.What is the process for return or replacement of LPC11U14FHN33/201,?
All LPC11U14FHN33/201, units undergo pre-shipment inspection (PSI). If there is an issue with LPC11U14FHN33/201,, 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 LPC11U14FHN33/201, part is unused and in its original packaging.
Return procedure for LPC11U14FHN33/201,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11U14FHN33/201, Tags
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ATTINY4-TSHR
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