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NXP Semiconductors LPC1114FHI33/303K
- Part No.:
- LPC1114FHI33/303K
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC1114FHI33/303K.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,420
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Product details
Overview
LPC1114FHI33/303K from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in a 5×5 mm HVQFN33 package, featuring 32 kB flash, 8 kB SRAM, 28 GPIO pins, 10-bit ADC with 8-channel input multiplexing, and support for UART, I²C (Fast-mode Plus), and two SPI interfaces. It operates at up to 50 MHz and targets low-power embedded control in lighting and alarm systems.
For engineers reviewing the LPC1114FHI33/303K datasheet, LPC1114FHI33/303K pinout, LPC1114FHI33/303K application, or LPC1114FHI33/303K equivalent, this page delivers verified specifications, validated pin functions, real-world use cases, and confirmed alternative parts for rapid design-in and supply assurance.
Technical Context
The LPC1114FHI33/303K belongs to the LPC1100XL series, incorporating a windowed watchdog timer (WWDT), configurable open-drain GPIO mode, and power profiles stored in boot ROM for optimized performance/power trade-offs. Its clock system includes a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), and PLL enabling full 50 MHz CPU operation.
It supports In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader, and features four general-purpose timers (two 32-bit, two 16-bit) with capture/match capability, plus edge- and level-sensitive GPIO interrupts across all 28 I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz - enables efficient C/C++ execution and interrupt latency as low as 12 cycles. |
| Flash Memory | 32 kB - sufficient for medium-complexity firmware including protocol stacks and sensor processing logic. |
| SRAM | 8 kB - supports real-time data buffering, stack depth for nested ISRs, and small heap allocations. |
| GPIO Pins | 28 configurable I/O - includes pull-up/pull-down, open-drain mode, and interrupt capability on all pins. |
| ADC | 10-bit SAR with 8-channel multiplexer - provides sufficient resolution for analog sensor interfacing (e.g., temperature, light, voltage monitoring). |
| I²C Interface | Fast-mode Plus (1 Mbit/s) - enables high-speed communication with sensors, EEPROMs, and PMICs without bus contention. |
| UART | RS-485/EIA-485 compliant with fractional baud rate generator - supports robust industrial serial networking over long distances. |
| Package | HVQFN33, 5×5×0.85 mm - compact footprint ideal for space-constrained PCBs while maintaining thermal performance. |
Pinout & Package
HVQFN33 (5×5 mm, 33-terminal, no-lead thermal-enhanced quad flat package) with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 1.8–3.6 V supply rail; two independent VDD pins ensure stable core/peripheral voltage distribution. |
| VSS | Ground | Reference ground for analog/digital domains; dedicated VSS terminal improves noise immunity for ADC and timing circuits. |
| RESET/PIO0_0 | Reset input / GPIO | Active-low reset with internal pull-up; dual-function pin allows flexible reset sourcing or general-purpose I/O after initialization. |
| XTALIN / XTALOUT | Clock oscillator inputs | Supports external crystal (1–25 MHz) for precise timing; XTALOUT drives external load for stable frequency reference. |
| SWDIO / PIO1_3 / AD4 / CT32B1_MAT2 | Debug / GPIO / ADC / Timer | Multi-function pin enabling Serial Wire Debug, analog input, or timer match output - reduces pin count without sacrificing debug or peripheral access. |
| PIO0_7 / CTS | UART clear-to-send | Hardware flow control signal for RS-485 transceivers - prevents data overrun during high-throughput serial transfers. |
| PIO1_4 / AD5 / CT32B1_MAT3 / WAKEUP | ADC input / Timer / Wakeup | Enables low-power wake-from-deep-sleep via external analog event or timer expiration - critical for battery-operated alarm sensors. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed Watchdog Timer (WWDT) | Prevents runaway code execution with time-windowed refresh requirement - essential for safety-critical lighting and alarm firmware. |
| Configurable Open-Drain GPIO | Allows direct interface with I²C buses, wired-AND logic, or LED drivers without external pull-ups - simplifies board design and reduces BOM cost. |
| Power Profiles in Boot ROM | One function call selects pre-validated power/performance modes - accelerates low-power optimization for white goods and metering applications. |
| 10-bit ADC with 8-channel Multiplexing | Simultaneous sampling of multiple analog sensors (e.g., ambient light + temperature + supply voltage) within single conversion sequence. |
| UART with RS-485 Support | Integrated driver enable control and polarity inversion - eliminates need for external direction-control logic in multi-drop industrial networks. |
| Serial Wire Debug (SWD) | 2-pin debug interface with full trace and breakpoint capability - enables non-intrusive firmware validation on production hardware. |
Applications
| Smart Lighting Control | Home Alarm Panel |
|---|---|
Use Scenario: Dimmable LED driver with ambient light sensing and wireless command reception. IC Role / Device Role / Timing Role: Main controller managing PWM dimming, ADC-based lux measurement, UART command parsing, and I²C communication with RF module. Use Value: 28 GPIO and dual SPI allow concurrent LED matrix control, sensor polling, and radio interface - eliminating secondary controllers. | Use Scenario: Battery-backed security panel monitoring door/window contacts, motion sensors, and siren output. IC Role / Device Role / Timing Role: Central MCU executing low-power sleep/wake cycles, debouncing digital inputs, driving piezo siren, and logging events to flash. Use Value: Windowed WDT and deep-sleep wake-on-ADC ensure reliable operation during extended battery life - critical for unattended installations. |
| Energy Metering Interface | White Goods Motor Control |
Use Scenario: Sub-metering node aggregating current/voltage readings and communicating via RS-485 to central gateway. IC Role / Device Role / Timing Role: Data acquisition and protocol translation unit converting analog sensor outputs to Modbus RTU frames. Use Value: RS-485 UART with hardware flow control ensures error-free transmission over noisy 100+ meter cable runs in utility environments. | Use Scenario: Fan speed controller in refrigerator or HVAC unit using hall-effect feedback and thermal monitoring. IC Role / Device Role / Timing Role: Real-time motor commutation supervisor with ADC-based temperature supervision and PWM generation. Use Value: 32 kB flash stores motor profile tables and calibration data; 8 kB SRAM buffers real-time PID calculations and fault logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1114FHN33/303 | Same core, flash, SRAM, and peripherals but in 7×7 mm HVQFN33 package - larger footprint, higher thermal mass. | Preferred where PCB layout allows larger package or requires enhanced thermal dissipation under sustained 50 MHz operation. | Select when mechanical constraints permit larger package and thermal margin is prioritized over board area. |
| LPC1114FBD48/303 | LQFP48 package with 42 GPIO, same flash/SRAM, adds second SPI and full 8-channel ADC routing - different pinout and larger footprint. | Suitable for designs requiring maximum I/O count or legacy LQFP-compatible layouts without redesign. | Choose when expanding I/O count or migrating from existing LQFP-based designs is required. |
Compared with LPC1114FHI33/303K, the FHN33/303 offers identical functionality in a thermally robust 7×7 mm variant, while the FBD48/303 delivers expanded I/O and routing flexibility at the cost of board area - both require PCB layout changes but provide validated migration paths.
Availability
LPC1114FHI33/303K is available at Aetrix Electronics and suitable for smart lighting control, home alarm systems, energy metering interfaces, and white goods motor control requiring stable component supply across industrial temperature ranges (−40 °C to +105 °C).
Supply support for LPC1114FHI33/303K 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.
The LPC1100XL series, including LPC1114FHI33/303K, was designed for cost-sensitive, low-power embedded control in lighting, alarm, and metering systems - emphasizing fast time-to-market with integrated power management and debug features.
FAQ
What is the operating temperature range for the LPC1114FHI33/303K?
The LPC1114FHI33/303K is rated for industrial operation from −40 °C to +105 °C, as indicated by the 'J' suffix in its ordering code. This extended range supports deployment in demanding environments such as outdoor lighting fixtures, HVAC units, and alarm panels exposed to wide ambient fluctuations - ensuring reliable startup and operation without thermal derating.
Does the LPC1114FHI33/303K support In-Application Programming (IAP)?
Yes, the LPC1114FHI33/303K supports In-Application Programming via its on-chip bootloader, allowing firmware updates without external programming hardware. This capability is enabled by the 32 kB flash memory and dedicated IAP routines in ROM - critical for field-upgradable lighting controllers and alarm systems where physical access is limited.
How many ADC channels does the LPC1114FHI33/303K support, and what is the resolution?
The LPC1114FHI33/303K integrates a 10-bit successive approximation register (SAR) ADC with input multiplexing across 8 pins. This provides sufficient resolution for precision analog sensing in applications like ambient light detection, temperature monitoring, and supply voltage supervision - all accessible through a single peripheral with configurable sample rates.
What debug interface does the LPC1114FHI33/303K use, and how many pins are required?
The LPC1114FHI33/303K uses Serial Wire Debug (SWD), requiring only two pins: SWCLK and SWDIO. This 2-pin interface supports full debugging capabilities including breakpoints, watchpoints, and real-time memory inspection - minimizing pin usage while delivering professional-grade development support for the LPC1114FHI33/303K.
Is the LPC1114FHI33/303K pin-compatible with other LPC1114 variants in HVQFN33 packages?
Yes, the LPC1114FHI33/303K shares identical pinout and electrical characteristics with other LPC1114 variants in the HVQFN33 package (e.g., LPC1114FHN33/303, LPC1114FHI33/302), differing only in temperature grade and internal configuration bits - enabling drop-in replacement where thermal or feature requirements align.
LPC1114FHI33/303K 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1114FHI33/303K FAQ
1.How can I place an order for LPC1114FHI33/303K through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1114FHI33/303K 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 LPC1114FHI33/303K reliable?
The price and inventory of LPC1114FHI33/303K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1114FHI33/303K is usually 5 days.
3.What payment methods are accepted for LPC1114FHI33/303K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1114FHI33/303K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1114FHI33/303K?
LPC1114FHI33/303K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1114FHI33/303K 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 LPC1114FHI33/303K?
For technical support, including LPC1114FHI33/303K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1114FHI33/303K requirements.
6.How does Aetrix verify that LPC1114FHI33/303K is sourced from the original manufacturer or authorized distributors?
All LPC1114FHI33/303K 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 LPC1114FHI33/303K meets industry standards.
7.What is the process for return or replacement of LPC1114FHI33/303K?
All LPC1114FHI33/303K units undergo pre-shipment inspection (PSI). If there is an issue with LPC1114FHI33/303K, 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 LPC1114FHI33/303K part is unused and in its original packaging.
Return procedure for LPC1114FHI33/303K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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