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NXP Semiconductors LPC1111JHN33/203E
- Part No.:
- LPC1111JHN33/203E
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC1111JHN33/203E.pdf
- Description:
- IC MCU 32BIT 8KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,905
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Product details
Overview
LPC1111JHN33/203E from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in HVQFN33 package, featuring 8 kB flash, 4 kB SRAM, 1 UART, 1 I²C-bus (Fast-mode Plus), 2 SPI interfaces, 10-bit ADC with 8 input channels, and 28 GPIO pins. It operates at up to 50 MHz and supports extended temperature range (−40 °C to +105 °C), targeting compact industrial control and smart sensor nodes.
For engineers reviewing the LPC1111JHN33/203E datasheet, LPC1111JHN33/203E pinout, LPC1111JHN33/203E application, or LPC1111JHN33/203E equivalent, this page delivers verified technical context, validated pin functions, confirmed power profile support, exact peripheral allocation for HVQFN33, and real-world substitution guidance aligned with LPC1100XL series specifications.
Technical Context
The LPC1111JHN33/203E belongs to the LPC1100XL series and integrates a windowed watchdog timer (WWDT), programmable 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 enabling full 50 MHz CPU operation without external high-frequency crystals.
It implements ARM Cortex-M0 core with NVIC, Serial Wire Debug (SWD), system tick timer, and non-maskable interrupt (NMI) capability. Memory subsystem supports In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader, with 256-byte page erase functionality enabled in LPC1100XL variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz - enables efficient execution of real-time control tasks with low code footprint. |
| Flash Memory | 8 kB - sufficient for small firmware images including bootloader, communication stacks, and sensor processing logic. |
| SRAM | 4 kB - supports moderate variable storage, stack depth, and buffer space for UART/I²C/SPI data exchange. |
| ADC | 10-bit, 8-channel multiplexed input - provides sufficient resolution for analog sensor interfacing (e.g., temperature, light, voltage monitoring). |
| I²C Interface | Fast-mode Plus (1 Mbit/s) with multi-address recognition - enables high-speed communication with multiple slave devices on shared bus. |
| GPIO Count | 28 pins with configurable pull-up/pull-down and open-drain mode - allows flexible signal conditioning, level translation, and direct drive of LEDs or small loads. |
| Operating Temp | −40 °C to +105 °C (J-grade) - qualified for under-hood automotive modules, industrial motor controllers, and outdoor metering equipment. |
| Package | HVQFN33 (7 × 7 × 0.85 mm, no leads) - offers thermal efficiency and board-space savings in space-constrained embedded designs. |
Pinout & Package
HVQFN33 package: plastic thermal enhanced very thin quad flat package, 33 terminals, body size 7 mm × 7 mm × 0.85 mm, exposed thermal pad, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (x2) | Power supply | Core and I/O supply (1.8 V to 3.6 V); dual pins reduce impedance and improve noise immunity. |
| VSS (x2) | GND | Digital ground reference; dual pins ensure stable return path for high-speed digital switching. |
| RESET/PIO0_0 | Reset input / GPIO | Active-low reset with internal pull-up; configurable as general-purpose input/output after initialization. |
| XTALIN / XTALOUT | Clock input/output | Supports external crystal (1–25 MHz) or ceramic resonator; optional bypass for internal RC oscillator use. |
| SWDIO / PIO1_3 / AD4 / CT32B1_MAT2 | Debug / ADC / Timer | Multi-function pin: SWD debug interface, analog input channel 4, and 32-bit timer match output - enables in-circuit debugging without dedicated debug header. |
| SWCLK / PIO0_10 / SCK0 / CT16B0_MAT2 | Debug / SPI / Timer | Serial Wire Clock input, SPI0 clock, and 16-bit timer match output - consolidates debug, peripheral, and timing functions on one pin. |
| PIO0_7 / CTS | UART handshaking | Clear-to-send input for hardware flow control in RS-485/EIA-485 UART applications. |
| PIO1_6 / RXD / CT32B0_MAT0 | UART receive / Timer | Asynchronous serial data input and 32-bit timer match output - supports time-stamped event capture during serial reception. |
| PIO1_7 / TXD / CT32B0_MAT1 | UART transmit / Timer | Asynchronous serial data output and 32-bit timer match output - enables synchronized pulse generation alongside data transmission. |
| PIO0_4 / SCL | I²C clock | Open-drain output with internal pull-up option; supports Fast-mode Plus (1 Mbit/s) timing requirements. |
| PIO0_5 / SDA | I²C data | Open-drain bidirectional data line; compatible with standard and Fast-mode Plus I²C slaves. |
| PIO0_2 / SSEL0 / CT16B0_CAP0 | SPI select / Timer capture | Slave select for SPI0 and 16-bit timer capture input - allows edge-triggered timestamping of external events during SPI communication. |
| PIO0_9 / MOSI0 / CT16B0_MAT1 | SPI master out / Timer | Master-out-slave-in data line and 16-bit timer match output - supports simultaneous data transfer and periodic signal generation. |
| PIO0_8 / MISO0 / CT16B0_MAT0 | SPI master in / Timer | Master-in-slave-out data line and 16-bit timer match output - enables feedback-based control loops using SPI sensor reads and timed actuation. |
| PIO1_4 / AD5 / CT32B1_MAT3 / WAKEUP | ADC / Timer / Wake | Analog input channel 5, 32-bit timer match output, and wake-from-deep-sleep source - allows low-power sensor polling with autonomous wake-up on threshold crossing. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed Watchdog Timer (WWDT) | Prevents runaway code execution with time-windowed refresh requirement - critical for fail-safe operation in industrial safety systems. |
| Configurable Power Profiles | Boot ROM-resident power optimization routines enable single-function call to switch between performance, low-power sleep, and deep power-down modes. |
| Programmable Open-Drain GPIO | Enables direct interface with I²C, SMBus, and 1-Wire buses without external pull-ups - reduces BOM count and layout complexity. |
| 256-Byte Flash Page Erase | Allows fine-grained firmware updates and parameter storage without erasing full sectors - essential for field-upgradable calibration data or configuration settings. |
| RS-485/EIA-485 UART Support | Integrated driver enable control and fractional baud rate generation - simplifies robust long-distance industrial communication without external transceivers. |
| High-Current GPIO Drivers | One 20 mA source and two 20 mA sink pins - directly drives LEDs, relays, or optocouplers without external buffers in cost-sensitive designs. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Compact electricity/water/gas meter with tamper detection, pulse counting, and wireless backhaul. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing EEPROM/NVRAM, and handling RS-485 communication with concentrators. Use Value: 8 kB flash stores calibrated metrology firmware; 28 GPIO support optical pulse inputs, LCD segments, and relay control; J-grade temp rating ensures reliability in outdoor enclosures. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Low-power sensor aggregator with wake-on-event ADC sampling and SPI-connected sensor ICs. Use Value: Deep power-down mode draws <1 µA; WWDT ensures recovery from brownout; 10-bit ADC resolves sub-degree temperature changes; open-drain GPIO interfaces with I²C sensors. |
| LED Lighting Control | Alarm System Controller |
Use Scenario: DALI-compliant LED driver with dimming, color tuning, and fault reporting in commercial lighting fixtures. IC Role / Device Role / Timing Role: DALI physical layer controller implementing EN 62386-102, managing PWM outputs, and handling address programming. Use Value: UART with RS-485 support meets DALI bus electrical specs; 28 GPIO configure as DALI bus drivers and status indicators; 50 MHz CPU handles real-time dimming curves. | Use Scenario: Residential or commercial intrusion alarm panel with PIR motion sensors, door/window contacts, and siren output. IC Role / Device Role / Timing Role: Central security processor managing sensor polling, keypad scanning, and alarm triggering with audible/visual alerts. Use Value: 4 kB SRAM buffers zone states and event logs; GPIO with interrupt capability detects contact closure edges; WWDT prevents lockup during prolonged alarm conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1111FHN33/203 | Same core, memory, peripherals, and HVQFN33 package but rated for −40 °C to +85 °C (F-grade) instead of J-grade. | Not suitable for extended-temperature environments like under-hood automotive or outdoor utility meters. | Select when ambient operating temperature remains within industrial grade limits and cost optimization is prioritized. |
| LPC1112JHN33/203 | Upgraded to 16 kB flash and same 4 kB SRAM; identical J-grade temp range, HVQFN33 package, and peripheral set. | Supports larger firmware (e.g., BLE stack, advanced encryption, or multi-protocol gateways) while maintaining pin compatibility. | Choose when future firmware expansion or added feature sets require more program memory without PCB redesign. |
Compared with LPC1111JHN33/203E, the FHN33/203 variant lacks extended temperature qualification, limiting deployment in harsh environments, while the LPC1112JHN33/203 provides double the flash capacity for feature-rich firmware - both retain identical pinout, peripheral mapping, and power profile behavior.
Availability
LPC1111JHN33/203E is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, LED lighting control, and alarm system controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LPC1111JHN33/203E 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 delivering secure, scalable solutions for automotive, industrial, IoT, and mobile applications, with strong IP in ARM-based microcontrollers and connectivity technologies.
The LPC1100XL series was designed specifically for cost-sensitive, low-power embedded applications requiring extended temperature operation, integrated analog peripherals, and robust communication interfaces - targeting metering, lighting, and industrial control markets.
FAQ
What is the maximum operating frequency of the LPC1111JHN33/203E?
The LPC1111JHN33/203E operates at a maximum CPU frequency of 50 MHz, achievable via its integrated PLL driven by either the internal 12 MHz RC oscillator or an external crystal (1–25 MHz). This frequency is fully supported across its −40 °C to +105 °C operating range and enables deterministic real-time response for control loops and communication protocols.
Does the LPC1111JHN33/203E support In-Application Programming (IAP)?
Yes, the LPC1111JHN33/203E supports In-Application Programming (IAP) through its on-chip bootloader, allowing firmware updates without external programming hardware. This capability is enabled by the LPC1100XL series' 256-byte flash page erase function and is documented in NXP's UM10398 user manual - critical for remote field upgrades in deployed LPC1111JHN33/203E-based devices.
How many ADC input channels does the LPC1111JHN33/203E provide?
The LPC1111JHN33/203E features a 10-bit ADC with multiplexing across 8 input channels (AD0–AD7), all accessible on the HVQFN33 package. These channels are mapped to specific GPIO pins (e.g., PIO1_4/AD5, PIO1_3/AD4) and support single-ended conversion with programmable sample rates - sufficient for multi-sensor monitoring in LPC1111JHN33/203E-based environmental or metering applications.
Is the LPC1111JHN33/203E pin-compatible with other LPC11xx HVQFN33 variants?
Yes, the LPC1111JHN33/203E shares identical pinout and package dimensions (HVQFN33, 7 × 7 × 0.85 mm) with all other LPC11xx parts in the same package family, including LPC1111FHN33/203, LPC1112JHN33/203, and LPC1114JHN33/203. This enables drop-in replacement for memory or temperature grade upgrades without PCB modification - confirmed by NXP's Figure 7 pin configuration diagram for LPC1100XL HVQFN33.
What debug interface does the LPC1111JHN33/203E support?
The LPC1111JHN33/203E supports Serial Wire Debug (SWD) via dedicated SWDIO and SWCLK pins (PIO1_3 and PIO0_10), providing full ARM Cortex-M0 debug access including breakpoints, watchpoints, and memory inspection. No JTAG interface is implemented; SWD requires only two pins and is compatible with standard ARM debug probes such as LPC-Link2 and SEGGER J-Link - essential for development and validation of LPC1111JHN33/203E firmware.
LPC1111JHN33/203E 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:
LPC1111JHN33/203E FAQ
1.How can I place an order for LPC1111JHN33/203E through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1111JHN33/203E 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 LPC1111JHN33/203E reliable?
The price and inventory of LPC1111JHN33/203E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1111JHN33/203E is usually 5 days.
3.What payment methods are accepted for LPC1111JHN33/203E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1111JHN33/203E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1111JHN33/203E?
LPC1111JHN33/203E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1111JHN33/203E 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 LPC1111JHN33/203E?
For technical support, including LPC1111JHN33/203E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1111JHN33/203E requirements.
6.How does Aetrix verify that LPC1111JHN33/203E is sourced from the original manufacturer or authorized distributors?
All LPC1111JHN33/203E 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 LPC1111JHN33/203E meets industry standards.
7.What is the process for return or replacement of LPC1111JHN33/203E?
All LPC1111JHN33/203E units undergo pre-shipment inspection (PSI). If there is an issue with LPC1111JHN33/203E, 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 LPC1111JHN33/203E part is unused and in its original packaging.
Return procedure for LPC1111JHN33/203E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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