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NXP Semiconductors LPC1114JHN33/303E
- Part No.:
- LPC1114JHN33/303E
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VQFN Exposed Pad
- Datasheet:
-
LPC1114JHN33/303E.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,673
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Product details
Overview
LPC1114JHN33/303E from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in HVQFN33 package, operating up to 50 MHz with 32 kB flash, 8 kB SRAM, and integrated peripherals including UART, I²C-Fast+, two SPI interfaces, four timers, and 10-bit ADC. It targets cost-sensitive embedded control in lighting, eMetering, and alarm systems.
For engineers reviewing the LPC1114JHN33/303E datasheet, LPC1114JHN33/303E pinout, LPC1114JHN33/303E application, or LPC1114JHN33/303E equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for industrial and consumer design-in.
Technical Context
The LPC1114JHN33/303E belongs to the LPC1100XL series, featuring a windowed watchdog timer (WWDT), power profiles in boot ROM for runtime performance/power tuning, 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 full-speed CPU operation without external high-frequency crystals.
It supports RS-485 UART with fractional baud rate generation and FIFO, dual SPI controllers with SSP features and multi-protocol capability, and Fast-mode Plus I²C at 1 Mbit/s with monitor mode and multiple address recognition - all confirmed for the LPC1100XL variant group containing LPC1114JHN33/303E.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz operation |
| Flash Memory | 32 kB on-chip flash with ISP/IAP support and page erase |
| SRAM | 8 kB on-chip SRAM for data and stack storage |
| ADC | 10-bit successive approximation ADC with up to 8 input channels |
| I²C Interface | Fast-mode Plus (1 Mbit/s) with monitor mode and multi-address support |
| GPIO Pins | 28 general-purpose I/O pins with configurable pull-up/pull-down and open-drain mode |
| Operating Temp | −40 °C to +105 °C (J-grade industrial temperature range) |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO port 0 pin 0 | Active-low reset with optional GPIO reuse after initialization |
| XTALIN / XTALOUT | Crytal oscillator input/output | Supports 1–25 MHz external crystal for precise timing |
| SWDIO / PIO1_3 / AD4 / CT32B1_MAT2 | SWD debug I/O / ADC channel 4 / timer match output | Multi-function pin enabling debug, analog sensing, and timer control |
| PIO0_7 / CTS | Clear-to-send input for UART flow control | Hardware RTS/CTS handshaking support for robust serial communication |
| VDD (×2) | Power supply (1.8–3.6 V) | Dual VDD pins ensure stable core and I/O rail operation |
| VSS (×2) | Ground reference | Dual ground pins reduce noise coupling and improve signal integrity |
| PIO2_0 / DTR / SSEL1 | Data terminal ready / SPI slave select 1 | Shared function enables UART modem control or SPI peripheral selection |
Key Features
| Feature | Design Value |
|---|---|
| Windowed Watchdog Timer (WWDT) | Enables fail-safe recovery with time-windowed refresh to prevent accidental or malicious resets |
| Power Profiles in Boot ROM | Single API call selects optimized voltage/frequency combinations for dynamic power/performance trade-offs |
| Configurable Open-Drain GPIO | Allows direct interface with I²C buses, wired-AND logic, or level-shifting circuits without external components |
| RS-485 UART with FIFO | Reduces CPU overhead during burst serial transfers and enables reliable long-distance industrial communication |
| High-Current GPIO Drivers | One 20 mA source pin and two 20 mA sink pins on I²C lines simplify LED or relay drive without buffers |
Applications
| Smart Lighting Control | eMetering Systems |
|---|---|
Use Scenario: Digital ballast control in LED streetlights with dimming, thermal monitoring, and DALI/KNX gateway functions. IC Role / Device Role / Timing Role: Main system controller executing real-time PWM dimming, ADC-based temperature sampling, and UART-based protocol translation. Use Value: 32 kB flash stores dual firmware images; 8 kB SRAM buffers sensor data; WWDT ensures safe fallback during firmware updates. | Use Scenario: Sub-metering node in smart building energy management, measuring current/voltage via shunt and reporting via RS-485. IC Role / Device Role / Timing Role: Primary acquisition and communication controller handling 10-bit ADC sampling, CRC calculation, and RS-485 UART transmission. Use Value: −40 °C to +105 °C rating ensures outdoor enclosure reliability; hardware FIFO prevents data loss at 19.2 kbps RS-485 rates. |
| Industrial Alarm Panels | White Goods UI Controllers |
Use Scenario: Zone monitoring and siren activation in fire/burglar panels with tamper detection and battery backup supervision. IC Role / Device Role / Timing Role: Central security processor managing GPIO-based zone inputs, buzzer outputs, and non-volatile event logging. Use Value: Power profiles enable low-power sleep between interrupts; open-drain GPIO directly drives opto-isolated zone inputs. | Use Scenario: Front-panel controller in washing machines, interpreting encoder/button inputs and driving segmented LCDs or LEDs. IC Role / Device Role / Timing Role: Dedicated UI microcontroller offloading main MCU, handling capacitive touch, LED PWM, and serial display updates. Use Value: 28 GPIO pins support matrix keypad + LED drivers + encoder interface; 50 MHz CPU handles real-time touch debouncing and animation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit ARM Cortex-M0 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1114FHN33/303 | Same flash/SRAM/peripherals but rated for −40 °C to +85 °C (F-grade); lacks extended temperature qualification | Suitable for commercial indoor environments only; not qualified for under-hood or outdoor industrial enclosures | Select when ambient temperature stays below +85 °C and cost sensitivity outweighs extended temp requirement |
| LPC1114JBD48/303 | LQFP48 package (48-pin) vs. HVQFN33 (33-pin); adds 14 more GPIO and full 42-pin capability; same J-temp grade and LPC1100XL feature set | Enables higher I/O density designs requiring more sensors, displays, or communication interfaces | Choose when board layout allows larger footprint and additional GPIO or ADC channels are needed |
Compared with LPC1114FHN33/303, the LPC1114JHN33/303E provides guaranteed operation up to +105 °C for harsh environments; compared with LPC1114JBD48/303, it offers identical functionality in a space-constrained 7×7 mm HVQFN33 package with reduced pin count for simpler routing.
Availability
LPC1114JHN33/303E is available at Aetrix Electronics and suitable for smart lighting control, eMetering systems, and industrial alarm panels requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LPC1114JHN33/303E 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 LPC1114JHN33/303E, was designed for cost-optimized, low-power 32-bit embedded control in resource-constrained applications where extended temperature operation and robust peripheral integration are critical.
FAQ
What is the maximum operating frequency of the LPC1114JHN33/303E?
The LPC1114JHN33/303E operates at a maximum CPU frequency of 50 MHz. This is achieved using either the internal 12 MHz ±1% RC oscillator with PLL multiplication or an external crystal oscillator (1–25 MHz) feeding the PLL. The 50 MHz performance is fully supported across its −40 °C to +105 °C operating range.
Does the LPC1114JHN33/303E support In-System Programming (ISP)?
Yes, the LPC1114JHN33/303E supports In-System Programming via its on-chip bootloader, accessible through UART, I²C, or USB (when used with external bridge). ISP enables field firmware updates without removing the device from the PCB, and is fully functional across all LPC1100XL variants including LPC1114JHN33/303E.
What ADC resolution and channel count does the LPC1114JHN33/303E provide?
The LPC1114JHN33/303E integrates a 10-bit successive approximation ADC with multiplexing across up to 8 input channels (AD[7:0]). Channel availability depends on package: the HVQFN33 package supports all 8 channels, as confirmed in the LPC1100XL series block diagram and pin description tables for LPC1114JHN33/303E.
Is the LPC1114JHN33/303E pin-compatible with other LPC1114 variants in HVQFN33?
Yes, the LPC1114JHN33/303E shares identical pinout and electrical characteristics with all other LPC1114 variants in the HVQFN33 package (e.g., LPC1114FHN33/303, LPC1114FHN33/203), differing only in temperature grade (J vs. F) and flash/SRAM configuration. Pin compatibility is explicitly confirmed in NXP's ordering information and pin description tables.
What debug interface does the LPC1114JHN33/303E support?
The LPC1114JHN33/303E supports Serial Wire Debug (SWD) via dedicated SWCLK and SWDIO pins (PIO0_10 and PIO1_3), compliant with ARM CoreSight standards. This two-wire interface enables full breakpoint, watchpoint, and memory access capabilities using standard tools like LPC-Link2 or SEGGER J-Link.
LPC1114JHN33/303E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VQFN Exposed Pad
- Series:
- LPC1100XL
- Packaging:
- Bulk
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1114JHN33/303E FAQ
1.How can I place an order for LPC1114JHN33/303E through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1114JHN33/303E 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 LPC1114JHN33/303E reliable?
The price and inventory of LPC1114JHN33/303E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1114JHN33/303E is usually 5 days.
3.What payment methods are accepted for LPC1114JHN33/303E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1114JHN33/303E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1114JHN33/303E?
LPC1114JHN33/303E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1114JHN33/303E 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 LPC1114JHN33/303E?
For technical support, including LPC1114JHN33/303E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1114JHN33/303E requirements.
6.How does Aetrix verify that LPC1114JHN33/303E is sourced from the original manufacturer or authorized distributors?
All LPC1114JHN33/303E 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 LPC1114JHN33/303E meets industry standards.
7.What is the process for return or replacement of LPC1114JHN33/303E?
All LPC1114JHN33/303E units undergo pre-shipment inspection (PSI). If there is an issue with LPC1114JHN33/303E, 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 LPC1114JHN33/303E part is unused and in its original packaging.
Return procedure for LPC1114JHN33/303E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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