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NXP Semiconductors LPC1111JHN33/103E
- Part No.:
- LPC1111JHN33/103E
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC1111JHN33/103E.pdf
- Description:
- IC MCU 32BIT 8KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,333
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Product details
Overview
LPC1111JHN33/103E from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in HVQFN33 package, operating up to 50 MHz with 8 kB flash, 2 kB SRAM, one UART, one I²C-bus (Fast-mode Plus), two SPI interfaces, four timers, and a 10-bit ADC. It targets low-power embedded control in lighting, alarm systems, and white goods.
For engineers reviewing the LPC1111JHN33/103E datasheet, LPC1111JHN33/103E pinout, LPC1111JHN33/103E application, or LPC1111JHN33/103E equivalent, this page delivers verified specifications, package layout, functional alternatives, and supply-chain support for industrial design-in and volume procurement.
Technical Context
The LPC1111JHN33/103E belongs to the LPC1100XL series, featuring a windowed watchdog timer, power profiles in boot ROM, and configurable open-drain GPIO mode. Its clock system includes a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), and PLL for CPU frequency scaling.
It supports up to 28 GPIO pins with edge/level interrupt capability, high-current sink drivers on I²C pins (20 mA), and 8-channel 10-bit ADC input multiplexing. The device operates across −40 °C to +105 °C and uses a single 1.8–3.6 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC architecture optimized for deterministic real-time control |
| Max Clock Frequency | 50 MHz - enables fast interrupt response and efficient execution of sensor fusion or motor control loops |
| Flash Memory | 8 kB - sufficient for compact firmware with bootloader, communication stack, and application logic |
| SRAM | 2 kB - supports small data buffers, stack, and real-time variable storage without external memory |
| I/O Pins | 28 GPIO - configurable pull-up/pull-down and open-drain mode for direct interface with sensors, LEDs, and bus transceivers |
| ADC | 10-bit, 8-channel - provides sufficient resolution for temperature sensing, battery monitoring, and analog control feedback |
| Serial Interfaces | 1 UART (RS-485 capable), 1 I²C (Fast-mode Plus, 1 Mbit/s), 2 SPI - enables multi-protocol connectivity to displays, EEPROMs, and peripheral ICs |
| Operating Temp | −40 °C to +105 °C - qualified for under-hood automotive accessories and industrial control enclosures |
Pinout & Package
HVQFN33 package: plastic thermal-enhanced very thin quad flat no-lead package, 7 mm × 7 mm × 0.85 mm body, 33 terminals, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO port 0 pin 0 | Active-low hardware reset; dual-function I/O usable for wake-up or status signaling |
| XTALIN / XTALOUT | Crytal oscillator input/output | Supports 1–25 MHz crystal for precise timing; optional bypass for internal RC oscillator use |
| SWDIO / PIO1_3 / AD4 | SWD debug I/O / GPIO / ADC input | Single-wire debug interface; shared with analog channel 4 for cost-efficient board routing |
| SWCLK / PIO0_10 / SCK0 | SWD clock / GPIO / SPI0 clock | Enables in-circuit debugging and concurrent SPI peripheral control without extra pins |
| PIO0_4 / SCL | I²C serial clock | Open-drain output supporting Fast-mode Plus (1 Mbit/s) for high-speed sensor communication |
| PIO0_5 / SDA | I²C serial data | Open-drain bidirectional line with programmable slew rate for noise immunity on long traces |
| PIO1_6 / RXD | UART receive | Asynchronous serial input with fractional baud rate generator for flexible communication timing |
| PIO1_7 / TXD | UART transmit | Drives RS-485 transceiver enable or direct TTL-level serial output |
| VDD (×2) | Power supply | Dual VDD pins improve power integrity and reduce IR drop in high-frequency operation |
| VSS (×3) | GND | Three ground terminals provide low-impedance return paths for digital, analog, and debug domains |
| PIO1_4 / AD5 / WAKEUP | ADC input / wake-up source | Enables low-power sleep mode exit via external analog threshold detection |
| PIO0_7 / CTS | UART clear-to-send | Hardware flow control signal for reliable full-duplex communication with modems or transceivers |
Key Features
| Feature | Design Value |
|---|---|
| Windowed watchdog timer | Prevents runaway code while allowing safe firmware updates and extended low-power intervals |
| Power profiles in boot ROM | One function call selects pre-validated trade-offs between performance, current draw, and wake-up latency |
| Configurable open-drain GPIO | Eliminates need for external pull-ups when interfacing with I²C, SMBus, or wired-AND logic |
| High-current I²C sink drivers (20 mA) | Drives longer bus segments or multiple slave devices without external buffer amplifiers |
| 12 MHz ±1 % internal RC oscillator | Enables immediate code execution at power-on without crystal startup delay or BOM cost |
| Serial Wire Debug (SWD) | Two-pin debug interface reduces PCB footprint and simplifies production programming and field diagnostics |
Applications
| Smart Lighting Control | Industrial Alarm Panel |
|---|---|
Use Scenario: Dimmable LED driver with ambient light sensing and wireless command reception. IC Role / Device Role / Timing Role: Main controller executing PWM generation, ADC sampling, and UART-based protocol parsing. Use Value: 28 GPIO and dual SPI allow direct LED matrix addressing and RF module interfacing; 10-bit ADC resolves lux-level changes with <1% error. | Use Scenario: Multi-zone fire/smoke detection panel with local siren, display, and RS-485 network reporting. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, alarm state machine, and serial communication to building management system. Use Value: UART with RS-485 support enables robust long-distance networking; −40 °C to +105 °C rating ensures reliability in unconditioned enclosures. |
| White Goods Interface Module | Energy Metering Subsystem |
Use Scenario: User interface and motor control coordinator in washing machine or dishwasher. IC Role / Device Role / Timing Role: Real-time task scheduler handling button debounce, display refresh, and triac firing timing. Use Value: Four 32-/16-bit timers provide independent PWM channels and precise zero-crossing detection for AC load control. | Use Scenario: Data acquisition front-end in smart electricity meter, reading shunt voltage and current transformer outputs. IC Role / Device Role / Timing Role: ADC controller and isolation barrier interface, feeding sampled data to host processor via SPI. Use Value: 8-channel 10-bit ADC with dedicated input pins supports simultaneous voltage/current measurement; open-drain GPIO safely interfaces with opto-isolators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1111FHN33/103 | Same core, flash, SRAM, and peripherals but rated for −40 °C to +85 °C only | Suitable for consumer-grade indoor appliances where extended temperature range is unnecessary | Select when cost sensitivity outweighs industrial temperature requirements |
| LPC1112JHN33/103 | 16 kB flash, 2 kB SRAM, identical package and temperature grade; adds one more GPIO | Better suited for designs requiring larger firmware image or additional I/O for expansion headers | Choose when future firmware growth or board-level flexibility is anticipated |
Compared with LPC1111JHN33/103E, the LPC1111FHN33/103 offers identical functionality at lower thermal qualification, while the LPC1112JHN33/103 extends flash capacity and I/O count-both retain pin compatibility and SWD debug infrastructure, enabling reuse of PCB layout and toolchain configuration.
Availability
LPC1111JHN33/103E is available at Aetrix Electronics and suitable for smart lighting control, industrial alarm panels, and white goods interface modules requiring stable component supply and long-term industrial lifecycle support.
Supply support for LPC1111JHN33/103E 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 LPC1100XL series, including LPC1111JHN33/103E, was designed for cost-sensitive, low-power embedded applications demanding robust operation across extended industrial temperatures and simplified development with ARM Cortex-M0 efficiency.
FAQ
What is the maximum operating frequency of the LPC1111JHN33/103E?
The LPC1111JHN33/103E operates at a maximum CPU frequency of 50 MHz. This speed is achievable using the internal PLL driven by either the 12 MHz internal RC oscillator or an external crystal. The device maintains full peripheral functionality-including UART, I²C, and ADC-at this clock rate, making it suitable for time-critical control tasks such as motor commutation or real-time sensor processing.
Does the LPC1111JHN33/103E support in-system programming (ISP)?
Yes, the LPC1111JHN33/103E supports In-System Programming (ISP) via its built-in bootloader, accessible through UART using standard serial commands. This allows firmware updates without removing the device from the PCB. The bootloader resides in protected ROM and requires no user code modification, ensuring reliable field upgrades for deployed LPC1111JHN33/103E units in lighting or alarm systems.
What is the ADC resolution and channel count on the LPC1111JHN33/103E?
The LPC1111JHN33/103E integrates a 10-bit successive-approximation ADC with up to 8 input channels (AD0–AD7), mapped to specific GPIO pins depending on package. In the HVQFN33 variant, all 8 channels are available. The ADC supports single-shot and burst modes, programmable sample rates, and hardware trigger sources such as timers or external events-enabling precise analog monitoring in energy metering or environmental sensing applications using LPC1111JHN33/103E.
Is the LPC1111JHN33/103E pin-compatible with other LPC111x HVQFN33 variants?
Yes, the LPC1111JHN33/103E shares identical pinout and package dimensions with all other LPC111x HVQFN33 variants (e.g., LPC1112JHN33/103, LPC1114FHN33/203). Pin functions-including GPIO, UART, I²C, SPI, ADC, and debug signals-are fully aligned across the family. This enables direct substitution during prototyping or production ramp, provided firmware accounts for differences in flash size, SRAM, and peripheral enablement per part number.
What debug interface does the LPC1111JHN33/103E support?
The LPC1111JHN33/103E supports Serial Wire Debug (SWD) using two dedicated pins: SWDIO (PIO1_3) and SWCLK (PIO0_10). This two-wire interface enables full JTAG-equivalent debugging-breakpoints, register inspection, memory read/write-without requiring additional pins or complex trace circuitry. SWD is natively supported by Keil MDK, IAR Embedded Workbench, and open-source tools like OpenOCD, streamlining development for LPC1111JHN33/103E-based designs.
LPC1111JHN33/103E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VQFN Exposed Pad
- Series:
- LPC1100XL
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 28
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1111JHN33/103E FAQ
1.How can I place an order for LPC1111JHN33/103E through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1111JHN33/103E 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 LPC1111JHN33/103E reliable?
The price and inventory of LPC1111JHN33/103E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1111JHN33/103E is usually 5 days.
3.What payment methods are accepted for LPC1111JHN33/103E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1111JHN33/103E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1111JHN33/103E?
LPC1111JHN33/103E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1111JHN33/103E 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 LPC1111JHN33/103E?
For technical support, including LPC1111JHN33/103E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1111JHN33/103E requirements.
6.How does Aetrix verify that LPC1111JHN33/103E is sourced from the original manufacturer or authorized distributors?
All LPC1111JHN33/103E 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 LPC1111JHN33/103E meets industry standards.
7.What is the process for return or replacement of LPC1111JHN33/103E?
All LPC1111JHN33/103E units undergo pre-shipment inspection (PSI). If there is an issue with LPC1111JHN33/103E, 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 LPC1111JHN33/103E part is unused and in its original packaging.
Return procedure for LPC1111JHN33/103E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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