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NXP Semiconductors LPC11U12FHN33/201,
- Part No.:
- LPC11U12FHN33/201,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC11U12FHN33/201,.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,002
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Product details
Overview
LPC11U12FHN33/201 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in HVQFN33 package, operating at up to 50 MHz with 16 kB flash, 6 kB SRAM (4 kB main + 2 kB USB), and integrated Full-Speed USB 2.0 device controller. It features a 10-bit ADC (8 channels), two SSP interfaces, one Fast-mode Plus I²C-bus, one RS-485/UART with smart card support, four timers, and 26 GPIO pins - deployed in USB audio devices and handheld scanners.
For engineers reviewing the LPC11U12FHN33/201 datasheet, LPC11U12FHN33/201 pinout, LPC11U12FHN33/201 application, or LPC11U12FHN33/201 equivalent, key selection criteria include USB device stack readiness, 26-pin HVQFN33 footprint constraints, 16 kB flash capacity for firmware with USB HID/ACM class support, and verified 3.3 V operation across −40 °C to +85 °C industrial temperature range.
Technical Context
The LPC11U12FHN33/201 implements an ARM Cortex-M0 core with NVIC and NMI support, paired with dual PLLs - one for CPU clocking (up to 50 MHz) and a dedicated PLL for USB 48 MHz clock generation. Its memory subsystem includes 16 kB on-chip flash, 4 kB main SRAM, and 2 kB dedicated USB SRAM mapped into AHB space for zero-wait-state USB descriptor and endpoint buffer access.
Peripheral routing is managed via IOCON registers, enabling dynamic function assignment per pin. The HVQFN33 package omits CT32B0_CAP1 and DSR/RI/DCD signals present in LQFP48/TFBGA48 variants, limiting USART modem control to CTS/RTS/DTR only - confirmed by pin configuration Figure 2 and Table 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, supports Thumb-2 instruction set with NVIC and system tick timer. |
| Max Clock Frequency | 50 MHz - achieved via PLL using internal 12 MHz IRC or external crystal (1–25 MHz); enables real-time USB frame handling at 1 ms intervals. |
| Flash Memory | 16 kB - sufficient for USB device firmware with HID, CDC ACM, or custom class implementation plus bootloader space. |
| SRAM | 6 kB total (4 kB main + 2 kB USB SRAM) - USB SRAM is AHB-mapped for low-latency endpoint buffer access without APB arbitration. |
| USB Interface | Full-Speed USB 2.0 device controller - supports control, interrupt, bulk, and isochronous transfers; includes USB_VBUS detect, USB_CONNECT soft-connect, and USB_FTOGGLE SOF toggle output. |
| ADC | 10-bit SAR ADC with 8 input channels (AD0–AD7) - sampled via programmable trigger sources including timer match events and software start. |
| GPIO Pins | 26 configurable I/O pins in HVQFN33 - includes 8 pins with glitch filter, 8 interrupt-capable pins, and high-current drivers (20 mA sink on P0_4/P0_5, 20 mA source on P0_7). |
Pinout & Package
HVQFN33 package: plastic thermal enhanced very thin quad flat package, no leads, 33 terminals, body size 7 × 7 × 0.85 mm. Pin 1 index located at top-left corner (see Fig 2). All GPIO pins support pull-up/pull-down configuration, repeater mode, and open-drain operation; true open-drain pins are P0_4 (SCL) and P0_5 (SDA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PIO1_19) | DTR / SSEL1 | Data Terminal Ready output for USART; slave select for SSP1 - shared function requires IOCON configuration. |
| 13 (USB_DM) | USB D− | Full-Speed USB bidirectional differential data line - not 5 V tolerant; requires 1.5 kΩ pull-down on host side. |
| 14 (USB_DP) | USB D+ | Full-Speed USB bidirectional differential data line - not 5 V tolerant; requires 1.5 kΩ pull-up for device enumeration. |
| 26 (PIO0_16) | AD5 / CT32B1_MAT3 / WAKEUP | Analog input channel 5; match output for 32-bit timer 1; dedicated Deep power-down wake-up pin with 50 ns pulse detection. |
| 33 (VSS) | Ground | Main digital ground reference - must be connected to PCB ground plane with low-inductance path for USB signal integrity. |
Key Features
| Feature | Design Value |
|---|---|
| USB Device Stack Support | On-chip ROM bootloader provides certified USB device stack (HID/CDC) - eliminates external USB PHY and reduces BOM cost and layout complexity. |
| Power Management | Four low-power modes (Sleep, Deep-sleep, Power-down, Deep power-down) with wake-up via GPIO, USB activity, or WAKEUP pin - enables <1 μA retention current in Deep power-down. |
| Flexible Clocking | Dual PLL architecture: main PLL for CPU (up to 50 MHz), dedicated USB PLL for 48 MHz - decouples USB timing from system clock, ensuring jitter-free isochronous transfers. |
| Robust I/O | 26 GPIO with per-pin IOCON control, 5 V tolerant digital I/O (except USB/I²C pins), and programmable glitch filtering - simplifies interface to legacy peripherals and noisy industrial sensors. |
| Integrated Debug | SWD and JTAG interfaces with standard BSDL support - enables full-speed debugging and flash programming without external debug probe dependencies. |
Applications
| USB Audio Interface | Handheld Barcode Scanner |
|---|---|
Use Scenario: Embedded USB audio class (UAC) device transmitting stereo PCM data from MEMS microphone array to PC host. IC Role / Device Role / Timing Role: USB device controller handles isochronous IN endpoints; Cortex-M0 executes audio sample buffering and format conversion in real time. Use Value: 2 kB USB SRAM enables double-buffered 128-sample USB audio packets with zero-copy DMA, achieving <10 μs jitter and eliminating host-side audio dropouts. |
Use Scenario: Battery-powered handheld scanner decoding 1D/2D barcodes and transmitting results over USB CDC ACM virtual COM port. IC Role / Device Role / Timing Role: MCU manages CMOS image sensor interface, decode engine, and USB CDC serial emulation with hardware flow control (CTS/RTS). Use Value: High-current GPIO (P0_7) drives laser diode directly; 26-pin HVQFN33 enables compact 25 mm × 15 mm PCB footprint ideal for ergonomic handheld form factor. |
| Industrial Sensor Hub | Medical Patient Monitor Peripheral |
Use Scenario: DIN-rail mounted sensor aggregator collecting analog (temperature, pressure) and digital (I²C humidity, SPI accelerometer) data for Modbus RTU over RS-485. IC Role / Device Role / Timing Role: 10-bit ADC samples 8 analog channels; USART operates in RS-485 half-duplex mode with automatic direction control via RTS pin. Use Value: Fast-mode Plus I²C (1 Mbit/s) supports multi-drop sensor networks; programmable windowed watchdog ensures fail-safe recovery during field firmware updates. |
Use Scenario: Low-power wearable peripheral measuring SpO₂ and pulse rate, transmitting encrypted biometric data via USB HID to clinical tablet. IC Role / Device Role / Timing Role: Cortex-M0 executes real-time LED current control and photodiode signal processing; USB HID reports encrypted sensor frames every 100 ms. Use Value: Deep power-down mode (<1 μA) extends battery life to >72 hours; medical-grade brownout detection (four thresholds) prevents corrupted data during voltage sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11U14FHN33/201 | 32 kB flash, same 26-pin HVQFN33 package and peripheral set - no pinout or clocking changes. | Supports larger USB firmware images (e.g., composite HID+MSC) and complex sensor fusion algorithms requiring >16 kB code space. | Select when firmware growth exceeds 16 kB; identical layout and driver compatibility reduce redesign effort. |
| LPC1343FHN33/201 | ARM Cortex-M3 core, 32 kB flash, pin-compatible but lacks USB SRAM and dedicated USB PLL - requires external clock source for USB. | Suitable for applications needing higher computational throughput (e.g., FFT-based audio analysis) but adds external 48 MHz crystal and increases power consumption. | Choose only if M3 performance is mandatory; USB integration is less seamless and increases BOM count versus LPC11U12FHN33/201. |
Compared with LPC11U14FHN33/201, the LPC11U12FHN33/201 trades flash capacity for lower cost and smaller firmware footprint, while versus LPC1343FHN33/201 it delivers superior USB integration, lower power, and simpler clock tree - making it optimal for cost-sensitive, USB-centric embedded devices.
Availability
LPC11U12FHN33/201 is available at Aetrix Electronics and suitable for USB audio devices, handheld scanners, and industrial sensor hubs requiring stable component supply, long-term manufacturability, and qualified automotive/industrial temperature grade (−40 °C to +85 °C).
Supply support for LPC11U12FHN33/201 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 - emphasizing minimal external components, integrated USB PHY clocking, and ROM-resident USB stacks to accelerate time-to-market for human interface and data acquisition devices.
FAQ
What is the maximum operating frequency of the LPC11U12FHN33/201?
The LPC11U12FHN33/201 operates at up to 50 MHz, achieved using either the internal 12 MHz IRC oscillator or an external crystal (1–25 MHz) fed into the main PLL. This frequency is validated across the full −40 °C to +85 °C temperature range and supports deterministic USB frame timing with sub-microsecond interrupt latency.
Does the LPC11U12FHN33/201 include a USB PHY or require external components?
The LPC11U12FHN33/201 integrates a full-speed USB 2.0 device controller with on-die transceivers - no external PHY is required. Only passive components are needed: 1.5 kΩ pull-up on USB_DP for enumeration, and ESD protection diodes. The USB_VBUS pin monitors bus presence, and USB_CONNECT enables software-controlled SoftConnect.
How many ADC channels does the LPC11U12FHN33/201 support, and what is their resolution?
The LPC11U12FHN33/201 includes a single 10-bit successive approximation register (SAR) ADC with eight input channels (AD0–AD7), each mapped to dedicated GPIO pins. Conversion is triggered by software, timer match events, or external signals, and results are accessible via APB bus with configurable sampling clock division.
Is the LPC11U12FHN33/201 pin-compatible with other packages in the LPC11U1x family?
The LPC11U12FHN33/201 is not pin-compatible with LQFP48 or TFBGA48 variants due to differing pin counts and signal allocations. While functionally similar, the HVQFN33 package omits CT32B0_CAP1, DSR, RI, and DCD signals - confirmed in Table 3 and Figure 2. Migration requires PCB redesign and IOCON register reconfiguration.
What debug interfaces are supported by the LPC11U12FHN33/201?
The LPC11U12FHN33/201 supports both Serial Wire Debug (SWD) and JTAG interfaces. SWD uses SWCLK (P0_10) and SWDIO (P0_15); JTAG uses TDI (P0_11), TMS (P0_12), TDO (P0_13), TRST (P0_14), and TCK (P0_10). Both are enabled by default after reset and require no external pull-ups beyond standard debug probe termination.
LPC11U12FHN33/201, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VQFN Exposed Pad
- Series:
- LPC11Uxx
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 16KB (16K 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:
LPC11U12FHN33/201, FAQ
1.How can I place an order for LPC11U12FHN33/201, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11U12FHN33/201, 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 LPC11U12FHN33/201, reliable?
The price and inventory of LPC11U12FHN33/201, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11U12FHN33/201, is usually 5 days.
3.What payment methods are accepted for LPC11U12FHN33/201,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11U12FHN33/201, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11U12FHN33/201,?
LPC11U12FHN33/201, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11U12FHN33/201, 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 LPC11U12FHN33/201,?
For technical support, including LPC11U12FHN33/201, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11U12FHN33/201, requirements.
6.How does Aetrix verify that LPC11U12FHN33/201, is sourced from the original manufacturer or authorized distributors?
All LPC11U12FHN33/201, 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 LPC11U12FHN33/201, meets industry standards.
7.What is the process for return or replacement of LPC11U12FHN33/201,?
All LPC11U12FHN33/201, units undergo pre-shipment inspection (PSI). If there is an issue with LPC11U12FHN33/201,, 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 LPC11U12FHN33/201, part is unused and in its original packaging.
Return procedure for LPC11U12FHN33/201,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11U12FHN33/201, Tags
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