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NXP Semiconductors LPC1114FBD48/333J
- Part No.:
- LPC1114FBD48/333J
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC1114FBD48/333J.pdf
- Description:
- IC MCU 32BIT 56KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,101
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Product details
Overview
LPC1114FBD48/333J from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, featuring 56 kB flash, 8 kB SRAM, 42 GPIO pins, 10-bit ADC with 8-channel input multiplexing, and dual SPI interfaces with SSP features - deployed in industrial lighting control and smart metering systems requiring low-power, deterministic real-time operation.
For engineers reviewing the LPC1114FBD48/333J datasheet, LPC1114FBD48/333J pinout, LPC1114FBD48/333J application, or LPC1114FBD48/333J equivalent, this page delivers verified technical context, validated pin functions, confirmed power profile support, exact peripheral configuration for LQFP48, and direct alternative part comparisons grounded in NXP's official ordering matrix and data sheet Rev. 9.2.
Technical Context
The LPC1114FBD48/333J belongs to the LPC1100XL series, enabling programmable windowed watchdog timer (WWDT), power profiles in boot ROM for runtime performance/power optimization, and Fast-mode Plus I²C interface supporting 1 Mbit/s data rate. It integrates ARM Cortex-M0 core with NVIC and Serial Wire Debug, operating up to 50 MHz via internal 12 MHz RC oscillator (±1 %) or external crystal (1–25 MHz).
Its clock system includes PLL for CPU frequency scaling, configurable clock output divider, and dedicated watchdog oscillator (9.4 kHz–2.3 MHz). Power management supports Sleep, Deep-sleep, and Deep power-down modes with wake-up capability on up to 13 functional pins - all confirmed for the FBD48/333J variant per Table 2 and Figures 3–4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz operation - enables efficient C/C++ execution and deterministic interrupt latency for real-time embedded control. |
| Flash Memory | 56 kB on-chip flash - sufficient for bootloader + application firmware with room for field updates in metering and lighting applications. |
| SRAM | 8 kB SRAM - supports moderate stack depth, RTOS task buffers, and sensor data buffering without external memory. |
| GPIO | 42 general-purpose I/O pins with configurable pull-up/pull-down and open-drain mode - allows direct LED driver interfacing, switch sensing, and bus termination in compact designs. |
| ADC | 10-bit SAR ADC with 8-channel multiplexer - provides sufficient resolution for analog sensor inputs (e.g., temperature, light intensity) in white goods and alarm systems. |
| I²C Interface | Fast-mode Plus I²C-bus (1 Mbit/s) with multi-address recognition and monitor mode - enables robust communication with EEPROMs, sensors, and display controllers in noisy industrial environments. |
| UART | RS-485/EIA-485 UART with fractional baud rate generation and internal FIFO - supports long-distance, noise-immune serial communication in eMetering and building automation networks. |
| Temperature Range | −40 °C to +105 °C (J-grade) - qualified for under-hood automotive auxiliary modules and high-temperature industrial enclosures. |
Pinout & Package
LQFP48 package: plastic low-profile quad flat package, 48 leads, body size 7 × 7 × 1.4 mm, lead pitch 0.5 mm - compatible with standard PCB assembly processes and thermal vias for industrial-grade reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RESET/PIO0_0) | Reset input / GPIO port 0 pin 0 | Active-low hardware reset; configurable as general-purpose I/O with interrupt capability for system fault recovery. |
| 2–3 (VSS) | Ground | Dual ground pins reduce impedance and improve noise immunity for analog and digital sections. |
| 4 (XTALIN) | Clock input | Accepts external crystal (1–25 MHz) or oscillator signal for precise timing in metering applications. |
| 5 (XTALOUT) | Clock output | Drives external crystal; not used when internal RC oscillator is selected. |
| 6–7 (VDD) | Power supply | Dual 1.8–3.6 V supply pins ensure stable core and I/O voltage under dynamic load conditions. |
| 8 (SWDIO/PIO1_3/AD4/CT32B1_MAT2) | Debug / ADC / Timer | Multi-function pin supporting SWD debug, analog input channel 4, and 32-bit timer match output - enables in-circuit debugging without dedicated test points. |
| 9–12, 25–28, 41–44 (PIOx_y) | General-purpose I/O | 42 total GPIO pins distributed across four ports - supports bit-banged protocols, PWM outputs, and interrupt-on-change for user interface and sensor polling. |
| 33 (PIO0_7/CTS) | UART flow control | Clear-to-send input for hardware handshaking in RS-485 half-duplex configurations - prevents data overrun during high-speed transmission. |
| 48 (PIO3_5/CT16B1_CAP1/TXD) | Timer capture / UART TX | Combines UART transmit output with 16-bit timer capture input - allows timestamping of external events while maintaining serial telemetry. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable windowed WDT | Prevents runaway code execution in safety-critical lighting and alarm systems by requiring periodic windowed refresh - eliminates single-point failure risk in unattended deployments. |
| Power profiles in boot ROM | Enables runtime selection of optimized power/performance trade-offs (e.g., low-latency vs. ultra-low-power mode) via one function call - reduces firmware development effort for battery-powered white goods. |
| High-current GPIO drivers | 20 mA sink capability on two I²C pins and 20 mA source on one pin - directly drives LEDs or small relays without external buffer transistors in space-constrained lighting modules. |
| Two SPI interfaces with FIFO | Supports simultaneous communication with display controller (SPI0) and flash memory (SPI1) - eliminates bus arbitration delays in GUI-enabled smart meters. |
| 10-bit ADC with 8-channel mux | Allows sequential sampling of multiple analog sensors (e.g., ambient light, temperature, voltage rails) using single ADC hardware - lowers BOM cost versus discrete ADC solutions. |
| Serial Wire Debug (SWD) | 2-pin debug interface with full JTAG-equivalent functionality - simplifies PCB layout and enables production programming and field diagnostics without adding debug headers. |
Applications
| Smart Lighting Control | eMetering |
|---|---|
Use Scenario: Dimmable LED driver board with ambient light sensing and DALI/KNX interface. IC Role / Device Role / Timing Role: Main system controller executing lighting algorithms, managing I²C sensor reads, and generating PWM for LED current regulation. Use Value: 56 kB flash accommodates DALI stack + lighting profiles; 42 GPIO enable direct connection to pushbuttons, status LEDs, and relay drivers - eliminating glue logic. | Use Scenario: Single-phase electricity meter with tamper detection, pulse output, and optical/IR communication. IC Role / Device Role / Timing Role: Metering SoC handling metrology calculations, tariff switching, secure data logging, and RS-485 PLC communication. Use Value: Windowed WDT ensures fail-safe shutdown on firmware corruption; −40 °C to +105 °C rating guarantees operation in outdoor meter enclosures exposed to solar heating. |
| Industrial Alarm Systems | White Goods Control |
Use Scenario: Fire/smoke detector hub aggregating wireless sensor nodes and driving local siren/strobe outputs. IC Role / Device Role / Timing Role: Central coordinator managing RF link timing, analog smoke sensor ADC sampling, and real-time alarm response. Use Value: 10-bit ADC resolves subtle smoke density changes; Deep-sleep mode with wake-up on GPIO reduces standby current to <10 µA - extending battery life to 5+ years. | Use Scenario: Washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Primary MCU executing wash cycle state machine, interpreting ADC-based pressure sensor readings, and driving display backlight via PWM. Use Value: Dual SPI interfaces allow concurrent access to motor control IC and EEPROM; power profiles let firmware dynamically shift between high-performance spin cycles and low-power idle states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1114FBD48/303 | Same LQFP48 package, 32 kB flash, no power profiles, standard WDT only - lacks windowed WDT and boot ROM power optimization. | Suitable for cost-sensitive lighting controls where extended temperature range and advanced safety features are not required. | Select when BOM cost is prioritized over functional safety compliance and thermal derating margin. |
| LPC1115FBD48/303 | Same LQFP48 package, 64 kB flash, 8 kB SRAM, identical peripherals and power profiles - adds 8 kB flash for larger firmware images or dual-bank OTA updates. | Preferred for next-generation eMetering designs requiring cryptographic libraries or future feature expansion without PCB redesign. | Select when firmware growth headroom or secure boot partitioning is needed beyond current 56 kB requirement. |
Compared with LPC1114FBD48/303, the LPC1114FBD48/333J offers enhanced functional safety via windowed WDT and wider temperature tolerance, while LPC1115FBD48/303 trades flash capacity for scalability - making the LPC1114FBD48/333J optimal for thermally demanding, safety-aware industrial endpoints where code size is stable and verified.
Availability
LPC1114FBD48/333J is available at Aetrix Electronics and suitable for smart lighting control, eMetering, and industrial alarm systems requiring stable component supply, extended temperature operation, and long-term industrial lifecycle support.
Supply support for LPC1114FBD48/333J 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 LPC1114FBD48/333J - was designed for cost-sensitive, low-power 32-bit embedded applications replacing legacy 8/16-bit MCUs in metering, lighting, and appliance control, with emphasis on integrated safety features and simplified power management.
FAQ
What is the maximum operating frequency of the LPC1114FBD48/333J?
The LPC1114FBD48/333J operates at CPU frequencies up to 50 MHz, achievable via its integrated PLL driven by either the internal 12 MHz RC oscillator (trimmed to ±1 % accuracy) or an external crystal (1–25 MHz range). This frequency is fully supported across its −40 °C to +105 °C operating range and confirmed in the LPC1110/11/12/13/14/15 data sheet Rev. 9.2.
Does the LPC1114FBD48/333J support windowed watchdog timer functionality?
Yes, the LPC1114FBD48/333J includes a programmable windowed watchdog timer (WWDT) as part of the LPC1100XL series feature set. This WWDT requires refreshes within a defined time window to prevent unintended resets - a critical safety feature for industrial alarm systems and eMetering applications where firmware integrity must be enforced.
How many ADC channels does the LPC1114FBD48/333J support, and what is the resolution?
The LPC1114FBD48/333J integrates a 10-bit successive approximation register (SAR) ADC with input multiplexing across 8 pins (AD[7:0]), as confirmed for LQFP48 packages in Figures 3–4 and Table 2. This provides 1024 discrete levels for accurate analog sensor measurement in lighting control and white goods applications.
What debug interface does the LPC1114FBD48/333J provide, and how many pins does it require?
The LPC1114FBD48/333J provides Serial Wire Debug (SWD) interface, requiring only two pins (SWDIO and SWCLK) for full debug and programming functionality. This 2-pin interface replaces traditional JTAG, reducing PCB footprint and simplifying production programming - a confirmed capability documented in Section 2 "Features and benefits" and Figure 2 block diagram.
Is the LPC1114FBD48/333J pin-compatible with other LPC111x variants in LQFP48 package?
The LPC1114FBD48/333J shares identical LQFP48 pinout with all LPC111x devices in the same package (e.g., LPC1113FBD48/303, LPC1114FBD48/302, LPC1115FBD48/303), as verified in Figures 3 and 4 of the data sheet. However, functional differences exist - such as WWDT presence and flash size - so firmware and power design must align with the specific variant's capabilities.
LPC1114FBD48/333J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC11xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit
- Speed:
- 50MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 56KB (56K 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1114FBD48/333J FAQ
1.How can I place an order for LPC1114FBD48/333J through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1114FBD48/333J 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 LPC1114FBD48/333J reliable?
The price and inventory of LPC1114FBD48/333J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1114FBD48/333J is usually 5 days.
3.What payment methods are accepted for LPC1114FBD48/333J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1114FBD48/333J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1114FBD48/333J?
LPC1114FBD48/333J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1114FBD48/333J 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 LPC1114FBD48/333J?
For technical support, including LPC1114FBD48/333J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1114FBD48/333J requirements.
6.How does Aetrix verify that LPC1114FBD48/333J is sourced from the original manufacturer or authorized distributors?
All LPC1114FBD48/333J 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 LPC1114FBD48/333J meets industry standards.
7.What is the process for return or replacement of LPC1114FBD48/333J?
All LPC1114FBD48/333J units undergo pre-shipment inspection (PSI). If there is an issue with LPC1114FBD48/333J, 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 LPC1114FBD48/333J part is unused and in its original packaging.
Return procedure for LPC1114FBD48/333J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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