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NXP Semiconductors LPC1114FHN33/302,5
- Part No.:
- LPC1114FHN33/302,5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC1114FHN33/302,5.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,467
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Product details
Overview
LPC1114FHN33/302 from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in HVQFN33 package, delivering up to 50 MHz CPU operation, 32 kB flash, 8 kB SRAM, one UART with RS-485 support, one Fast-mode Plus I²C interface, and a 10-bit ADC with 8-channel input multiplexing - deployed in lighting control and alarm systems requiring compact, low-power embedded processing.
For engineers reviewing the LPC1114FHN33/302 datasheet, LPC1114FHN33/302 pinout, LPC1114FHN33/302 application, or LPC1114FHN33/302 equivalent, this page provides verified technical context, validated pin functions, confirmed power profile support, and real-world application mappings for rapid integration into industrial and consumer embedded designs.
Technical Context
The LPC1114FHN33/302 belongs to the LPC1100L series and includes power profiles in boot ROM for runtime performance/power optimization, a programmable windowed watchdog timer (WWDT), and configurable open-drain GPIO mode. It supports fractional baud rate generation in UART and Fast-mode Plus I²C at 1 Mbit/s.
Its clock system integrates a 12 MHz internal RC oscillator trimmed to ±1 % accuracy, a 1–25 MHz crystal oscillator input, and a PLL enabling full 50 MHz CPU operation without external high-frequency crystals. The device operates across 1.8 V to 3.6 V and supports Sleep, Deep-sleep, and Deep power-down modes.
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 under 12 cycles. |
| Flash Memory | 32 kB on-chip flash - sufficient for firmware with bootloader, communication stacks, and application logic in space-constrained designs. |
| SRAM | 8 kB SRAM - supports real-time data buffering, stack depth for nested interrupts, and small RTOS footprint. |
| ADC | 10-bit SAR ADC with 8 selectable inputs - delivers 1 MSPS sampling for sensor monitoring in white goods and metering. |
| I²C Interface | Fast-mode Plus I²C (1 Mbit/s) with multi-address recognition - enables robust communication with multiple sensors or EEPROMs in noisy environments. |
| GPIO | 28 general-purpose I/O pins with configurable pull-up/pull-down and open-drain mode - simplifies level-shifting and bus interfacing without external components. |
| UART | RS-485/EIA-485 UART with internal FIFO and fractional baud rate generator - supports long-distance industrial serial networks with precise timing. |
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, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / General-purpose I/O | Active-low reset with internal pull-up; dual-function pin enables hardware reset or GPIO use after initialization. |
| XTALIN / XTALOUT | Clock oscillator inputs | Supports 1–25 MHz crystal; XTALOUT drives external crystal; both pins required for precision timing in metering applications. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug interface enables non-intrusive programming and real-time trace without dedicated JTAG pins. |
| PIO0_4/SCL & PIO0_5/SDA | I²C bus signals | Fast-mode Plus I²C pins with internal pull-ups - directly drive standard I²C peripherals without external resistors in most cases. |
| PIO1_6/RXD & PIO1_7/TXD | UART receive/transmit | Full-duplex UART with RTS/CTS flow control support - suitable for RS-485 transceiver control via GPIO-assisted direction management. |
| PIO0_11/AD0 – PIO1_11/AD7 | ADC input channels | 8-channel 10-bit ADC inputs mapped across GPIO ports - allows simultaneous analog sensing of temperature, voltage, and current in lighting control. |
Key Features
| Feature | Design Value |
|---|---|
| Power Profiles | Boot ROM-resident power profiles enable single-function API calls to switch between performance, low-power, and ultra-low-power operating points. |
| Windowed Watchdog Timer (WWDT) | Prevents runaway code by requiring periodic windowed refresh - critical for fail-safe operation in alarm systems and eMetering. |
| Configurable Open-Drain GPIO | Enables direct connection to I²C, SMBus, or 1-Wire buses without external pull-up resistors or level shifters. |
| High-Current GPIO Drivers | One 20 mA source pin and two 20 mA sink pins on I²C lines - drive LEDs or small relays directly without buffer stages. |
| Serial Wire Debug (SWD) | Two-pin debug interface reduces PCB footprint and routing complexity versus JTAG, while supporting full flash programming and real-time debugging. |
Applications
| Lighting Control | Alarm Systems |
|---|---|
Use Scenario: Dimmable LED driver with ambient light sensing and wireless command reception. IC Role / Device Role / Timing Role: Main controller executing PWM dimming algorithms, reading ADC-based light sensors, and managing UART-based RF module communication. Use Value: 32 kB flash stores lighting profiles and calibration data; 8-channel ADC monitors multiple photodiodes; WWDT ensures recovery from transient interference. | Use Scenario: Intrusion detection panel with door/window contact monitoring, siren control, and keypad interface. IC Role / Device Role / Timing Role: Central security processor handling zone polling, tamper detection, and RS-485 communication with remote sensors. Use Value: 28 GPIO support direct connection to 16+ zones; UART with RS-485 enables daisy-chained sensor networks; Deep-sleep mode extends battery life in wireless variants. |
| eMetering | White Goods |
Use Scenario: Smart electricity meter with pulse counting, tariff switching, and optical/IR communication port. IC Role / Device Role / Timing Role: Metering controller acquiring current/voltage samples via ADC, computing kWh, and managing secure IR data exchange. Use Value: 10-bit ADC meets Class B accuracy requirements; 50 MHz CPU handles real-time energy calculations; power profiles optimize active/idle cycle efficiency. | Use Scenario: Washing machine main control board managing motor drivers, water level sensing, temperature regulation, and user display. IC Role / Device Role / Timing Role: Primary MCU coordinating appliance subsystems via GPIO, UART (to display), I²C (to sensors), and ADC (NTC readings). Use Value: 8 kB SRAM buffers motor control state; open-drain GPIO interfaces with legacy I²C temperature sensors; WWDT prevents lockup during spin cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1114FBD48/302 | LQFP48 package (48 pins), 42 GPIO, same flash/SRAM/peripherals - adds two extra timers and full ADC channel count. | Requires larger PCB area and different layout; suited for designs needing >28 GPIO or additional capture inputs. | Select when pin count, timer resources, or ADC channel expansion are required beyond HVQFN33 constraints. |
| LPC1114FHN33/303 | Same HVQFN33 package but LPC1100XL series - adds second SPI interface and enhanced WWDT features. | Supports dual SPI peripheral chaining (e.g., display + SD card); requires updated firmware for WWDT window configuration. | Choose for new designs needing expanded serial connectivity or stricter safety timing enforcement. |
Compared with LPC1114FHN33/302, the LQFP48 variant offers greater I/O scalability at the cost of board space, while the /303 variant enhances serial flexibility and watchdog robustness without changing footprint - both require firmware adaptation but retain identical core architecture and toolchain compatibility.
Availability
LPC1114FHN33/302 is available at Aetrix Electronics and suitable for lighting control, alarm systems, and eMetering requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature range (−40 °C to +85 °C).
Supply support for LPC1114FHN33/302 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 applications.
The LPC1100L series - including LPC1114FHN33/302 - was designed for cost-sensitive, low-power 32-bit embedded control in consumer and industrial equipment where footprint, energy efficiency, and ease of certification are critical.
FAQ
What is the maximum operating frequency of the LPC1114FHN33/302?
The LPC1114FHN33/302 operates at a maximum CPU frequency of 50 MHz, achieved via its integrated PLL that accepts input from either the internal 12 MHz RC oscillator or an external crystal (1–25 MHz). This frequency is fully supported across its specified industrial temperature range (−40 °C to +85 °C) and 1.8–3.6 V supply.
Does the LPC1114FHN33/302 include a windowed watchdog timer?
Yes, the LPC1114FHN33/302 includes a programmable windowed watchdog timer (WWDT) as part of its LPC1100L series feature set. This WWDT requires refresh within a defined time window to prevent reset, providing stronger fault containment than standard WDTs - essential for alarm systems and eMetering compliance.
How many ADC channels does the LPC1114FHN33/302 support?
The LPC1114FHN33/302 supports 8 ADC input channels (AD0–AD7), accessible via dedicated GPIO pins. Its 10-bit successive approximation register (SAR) ADC achieves up to 1 MSPS sampling rate and includes internal voltage reference - meeting accuracy requirements for sensor interfacing in white goods and lighting applications.
What debug interface does the LPC1114FHN33/302 use?
The LPC1114FHN33/302 uses Serial Wire Debug (SWD), a 2-pin ARM-standard interface (SWDIO and SWCLK). It supports full flash programming, real-time variable inspection, and breakpoint debugging without requiring JTAG pins - reducing PCB routing complexity and pin count overhead in the HVQFN33 package.
Is the LPC1114FHN33/302 pin-compatible with other LPC111x HVQFN33 variants?
Yes, the LPC1114FHN33/302 shares identical pinout and package dimensions (HVQFN33, 7×7×0.85 mm) with all other LPC111x FHN33 variants (e.g., LPC1113FHN33/302, LPC1114FHN33/202). Pin functions, power domains, and peripheral mappings are consistent across the family - enabling drop-in replacement where flash/SRAM and feature requirements align.
LPC1114FHN33/302,5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VQFN Exposed Pad
- Series:
- LPC1100L
- Packaging:
- Tape & Reel (TR)
- 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
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1114FHN33/302,5 FAQ
1.How can I place an order for LPC1114FHN33/302,5 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1114FHN33/302,5 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 LPC1114FHN33/302,5 reliable?
The price and inventory of LPC1114FHN33/302,5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1114FHN33/302,5 is usually 5 days.
3.What payment methods are accepted for LPC1114FHN33/302,5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1114FHN33/302,5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1114FHN33/302,5?
LPC1114FHN33/302,5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1114FHN33/302,5 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 LPC1114FHN33/302,5?
For technical support, including LPC1114FHN33/302,5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1114FHN33/302,5 requirements.
6.How does Aetrix verify that LPC1114FHN33/302,5 is sourced from the original manufacturer or authorized distributors?
All LPC1114FHN33/302,5 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 LPC1114FHN33/302,5 meets industry standards.
7.What is the process for return or replacement of LPC1114FHN33/302,5?
All LPC1114FHN33/302,5 units undergo pre-shipment inspection (PSI). If there is an issue with LPC1114FHN33/302,5, 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 LPC1114FHN33/302,5 part is unused and in its original packaging.
Return procedure for LPC1114FHN33/302,5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC1114FHN33/302,5 Tags
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