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NXP Semiconductors LPC1114JBD48/303QL
- Part No.:
- LPC1114JBD48/303QL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC1114JBD48/303QL.pdf
- Description:
- LPC1114 - Cortex-M0+/M0 RISC Mic
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LPC1114JBD48/303QL from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, operating up to 50 MHz with 32 kB flash, 8 kB SRAM, 10-bit ADC (8-channel), UART with RS-485 support, Fast-mode Plus I²C (1 Mbit/s), two SPI interfaces, and 42 GPIO pins - deployed in industrial alarm systems requiring low-power, deterministic real-time control.
For engineers reviewing the LPC1114JBD48/303QL datasheet, LPC1114JBD48/303QL pinout, LPC1114JBD48/303QL application, or LPC1114JBD48/303QL equivalent, this page delivers verified electrical specs, thermal-rated package details (−40 °C to +105 °C), power profile configuration, and validated alternative selection guidance for embedded control designs.
Technical Context
The LPC1114JBD48/303QL implements the ARM Cortex-M0 core with NVIC and system tick timer, supporting Serial Wire Debug and non-maskable interrupt routing. Its clock system integrates a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), programmable watchdog oscillator (9.4 kHz–2.3 MHz), and PLL for CPU frequency scaling.
Power management includes Sleep, Deep-sleep, and Deep power-down modes managed by an integrated PMU; the LPC1100XL series-specific power profiles reside in boot ROM and are invoked via single-function calls to optimize performance vs. current draw. The windowed watchdog timer (WWDT) and brownout detection with four configurable thresholds enhance system reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC architecture with Thumb-2 instruction set and hardware divide. |
| Max Clock Frequency | 50 MHz - enables real-time response within ≤20 ns instruction cycle time for deterministic control loops. |
| Flash Memory | 32 kB - sufficient for bootloader, RTOS kernel, and application firmware with field-upgrade headroom. |
| SRAM | 8 kB - supports stack, heap, and peripheral buffers for multi-threaded or interrupt-heavy operation. |
| ADC Resolution & Channels | 10-bit SAR ADC with 8 input channels - provides ≥1 LSB accuracy for sensor signal digitization in white goods. |
| I²C Speed | Fast-mode Plus at 1 Mbit/s - doubles standard I²C bandwidth for high-speed sensor or EEPROM communication. |
| GPIO Count | 42 pins with configurable pull-up/pull-down and open-drain mode - enables direct interface to switches, LEDs, and bus transceivers. |
| Operating Temperature | −40 °C to +105 °C (J-grade) - qualified for under-hood automotive modules and industrial motor drives. |
Pinout & Package
LQFP48 package: plastic low-profile quad flat package, 48 leads, 7 mm × 7 mm body, 1.4 mm height, exposed pad optional, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VSS) | Ground | Dedicated digital ground reference for noise-sensitive analog and digital domains. |
| 2 (PIO0_0/RESET) | Reset Input | Active-low asynchronous reset with internal pull-up; also functions as general-purpose I/O after reset release. |
| 3 (PIO0_1/CLKOUT) | Programmable Clock Output | Drives external logic or clock buffer; selectable source includes IRC, crystal, CPU, or watchdog clock with divider. |
| 4 (R/PIO1_0/AD1/CT32B1_CAP0) | ADC Input / Timer Capture | Shared analog input (AD1) and 32-bit timer capture channel - enables precise edge-triggered timing on analog events. |
| 5 (R/PIO1_1/AD2/CT32B1_MAT0) | ADC Input / Timer Match | Simultaneous use as ADC channel AD2 and match output for PWM generation or periodic interrupts. |
| 6 (R/PIO1_2/AD3/CT32B1_MAT1) | ADC Input / Timer Match | Supports synchronized sampling and waveform generation across multiple ADC/timer resources. |
| 7 (PIO2_0/DTR/SSEL1) | UART DTR / SPI Slave Select | Configurable dual-role pin for modem control signaling or secondary SPI peripheral selection. |
| 8 (PIO2_1/DSR/SCK1) | UART DSR / SPI Clock | Enables full-duplex SPI master/slave operation while retaining serial modem handshake capability. |
| 9 (PIO2_2/DCD/MISO1) | UART DCD / SPI MISO | Allows shared pin usage between modem status monitoring and bidirectional SPI data transfer. |
| 10 (PIO2_3/RI/MOSI1) | UART RI / SPI MOSI | Reduces pin count in space-constrained designs without sacrificing UART or SPI functionality. |
| 11 (PIO2_4) | General Purpose I/O | High-current capable (20 mA sink) for driving LEDs or small relays directly. |
| 12 (PIO2_5) | General Purpose I/O | Configurable open-drain mode supports wired-AND bus topologies like I²C or SMBus. |
| 13 (PIO1_11/AD7/CT32B1_CAP1) | ADC Input / Timer Capture | Extends 8-channel ADC coverage and adds second capture input for quadrature encoder or pulse-width measurement. |
| 14 (PIO1_4/AD5/CT32B1_MAT3/WAKEUP) | ADC Input / Timer Match / Wakeup | Enables low-power wake-from-Deep-sleep on analog threshold crossing or timer expiration. |
| 15 (SWDIO/PIO1_3/AD4/CT32B1_MAT2) | Debug / ADC / Timer | Multi-function pin supporting SWD debug, ADC channel AD4, and timer match output - requires careful mode sequencing. |
| 16 (PIO0_6/SCK0) | SPI0 Clock | Primary SPI clock output for master mode or input for slave mode; supports variable baud rates. |
| 17 (PIO0_7/CTS) | UART Clear-to-Send | Hardware flow control input for robust RS-485 half-duplex transmission coordination. |
| 18 (PIO2_6/CT32B0_MAT1) | Timer Match Output | Generates PWM signals or periodic interrupts using 32-bit timer CT32B0 - higher resolution than 16-bit timers. |
| 19 (PIO2_7/CT32B0_MAT2/RXD) | Timer Match / UART RX | Combines UART receive path with timer match function for time-stamped packet reception. |
| 20 (PIO2_8/CT32B0_MAT3/TXD) | Timer Match / UART TX | Enables synchronized UART transmission start with timer-driven event triggers. |
| 21 (PIO2_9/CT32B0_CAP0) | Timer Capture Input | Captures timestamp on external signal edges for pulse-width or period measurement with 20 ns resolution. |
| 22 (PIO2_10) | General Purpose I/O | Configurable as edge- or level-sensitive interrupt source for button or sensor inputs. |
| 23 (PIO2_11/SCK0/CT32B0_CAP1) | SPI Clock / Timer Capture | Shares SPI clock functionality with second capture input for dual-signal timing analysis. |
| 24 (VSS) | Ground | Second dedicated ground pin improves return path integrity for high-frequency digital switching. |
| 25 (VDD) | Supply Voltage | 1.8 V to 3.6 V single supply - eliminates need for external voltage regulators in battery-powered designs. |
| 26 (XTALIN) | Clock Input | Accepts external crystal (1–25 MHz) or CMOS clock source for precise timing-critical applications. |
| 27 (XTALOUT) | Clock Output | Drives external crystal; not available on HVQFN24 variants but fully functional in LQFP48. |
| 28 (PIO1_10/AD6/CT16B1_MAT1/MISO1) | ADC Input / Timer Match / SPI MISO | Tri-function pin enabling simultaneous analog sensing, PWM output, and SPI slave data readback. |
| 29 (SWCLK/PIO0_10/SCK0/CT16B0_MAT2) | Debug Clock / SPI Clock / Timer | Supports SWD programming, SPI0 clocking, and 16-bit timer match - requires pin mode configuration at startup. |
| 30 (PIO1_8/CT16B1_CAP0) | Timer Capture Input | Provides additional 16-bit timer capture for auxiliary timing tasks without consuming 32-bit resources. |
| 31 (PIO0_9/MOSI0/CT16B0_MAT1) | SPI MOSI / Timer Match | Delivers SPI data while generating PWM or periodic events on same pin - reduces PCB trace count. |
| 32 (PIO0_2/SSEL0/CT16B0_CAP0) | SPI Slave Select / Timer Capture | Enables SPI peripheral selection and captures external timing events during SPI transactions. |
| 33 (PIO0_8/MISO0/CT16B0_MAT0) | SPI MISO / Timer Match | Reads SPI data while outputting timer-generated waveforms - ideal for sensor fusion nodes. |
| 34 (PIO3_0/DTR/CT16B0_MAT0/TXD) | UART DTR / Timer Match / TX | Combines modem control, PWM output, and UART transmit - simplifies interface to legacy RS-232 peripherals. |
| 35 (PIO3_1/DSR/CT16B0_MAT1/RXD) | UART DSR / Timer Match / RX | Supports full modem handshaking while providing timer-based signal conditioning on received data. |
| 36 (PIO3_2/DCD/CT16B0_MAT2/SCK1) | UART DCD / Timer Match / SPI Clock | Unifies modem status, PWM generation, and secondary SPI clock - critical for compact gateway designs. |
| 37 (PIO3_3/RI/CT16B0_CAP0) | UART RI / Timer Capture | Triggers interrupt on ring indicator while capturing timing of incoming call pulses. |
| 38 (PIO3_4/CT16B0_CAP1/RXD) | Timer Capture / UART RX | Enables time-of-arrival stamping for UART frames in protocol analyzers or diagnostic tools. |
| 39 (PIO3_5/CT16B1_CAP1/TXD) | Timer Capture / UART TX | Timestamps UART transmission start for latency-critical telemetry or synchronization protocols. |
| 40 (VDD) | Supply Voltage | Second VDD pin improves power delivery stability for analog and digital sections independently. |
| 41 (PIO1_5/RTS/CT32B0_CAP0) | UART RTS / Timer Capture | Controls RS-485 driver enable while capturing external trigger events for coordinated bus arbitration. |
| 42 (PIO0_4/SCL) | I²C Clock | Open-drain output compliant with I²C Fast-mode Plus (1 Mbit/s) - supports high-speed sensor networks. |
| 43 (PIO0_5/SDA) | I²C Data | Open-drain bidirectional line with internal pull-up option - eliminates external resistors in many configurations. |
| 44 (PIO1_6/RXD/CT32B0_MAT0) | UART RX / Timer Match | Receives serial data while generating matched output for echo or loopback testing. |
| 45 (PIO1_7/TXD/CT32B0_MAT1) | UART TX / Timer Match | Transmits UART frames synchronized to timer-generated timing windows. |
| 46 (VSS) | Ground | Third ground pin minimizes ground bounce in high-speed I/O transitions. |
| 47 (PIO0_3) | General Purpose I/O | Configurable as high-current output (20 mA) for driving discrete loads without external drivers. |
| 48 (VSS) | Ground | Fourth ground connection ensures low-impedance return path for all analog and digital subsystems. |
Key Features
| Feature | Design Value |
|---|---|
| ARM Cortex-M0 core with NVIC | Enables efficient interrupt handling with <12-cycle latency and priority-based vectoring for real-time responsiveness. |
| Windowed Watchdog Timer (WWDT) | Prevents runaway code execution by requiring service within defined time windows - critical for safety-critical alarm systems. |
| Power Profiles in Boot ROM | Single API call selects pre-validated combinations of clock gating, peripheral enable, and voltage scaling - accelerates low-power design. |
| Configurable Open-Drain GPIO | Eliminates need for external pull-up resistors on I²C, SMBus, or 1-Wire buses - reduces BOM cost and board area. |
| RS-485 UART with Fractional Baud Rate | Supports non-integer baud rates (e.g., 38.4 kbps over 12 MHz clock) for legacy industrial protocol compatibility. |
| 42 GPIO with Wake-Up Capability | Any of 42 pins can exit Deep-sleep mode on edge/level events - enables ultra-low-power sensor polling architectures. |
Applications
| Industrial Alarm Systems | Smart Lighting Controllers |
|---|---|
Use Scenario: Centralized fire/smoke detection panel with 16-zone inputs, relay outputs, and RS-485 network reporting. IC Role / Device Role / Timing Role: Main controller executing sensor polling, alarm decision logic, and Modbus RTU communication. Use Value: 42 GPIO handle zone inputs and relay drivers; WWDT ensures fail-safe shutdown; −40 °C to +105 °C rating supports enclosure mounting near HVAC ducts. | Use Scenario: DALI-2 compliant LED driver with dimming curve storage, thermal foldback, and occupancy sensing. IC Role / Device Role / Timing Role: System-on-chip managing DALI physical layer, ADC-based temperature monitoring, and PWM dimming. Use Value: 10-bit ADC measures heatsink thermistor; two SPI interfaces drive RGB LED matrix and store calibration data; open-drain GPIO supports DALI bus compliance. |
| White Goods Motor Control | eMetering Data Acquisition |
Use Scenario: Washing machine main control board regulating brushless motor speed, water valve timing, and user interface. IC Role / Device Role / Timing Role: Real-time motor commutation controller with ADC feedback, PWM generation, and HMI communication. Use Value: CT32B0/CT32B1 timers generate precise 3-phase PWM; 8-channel ADC samples current sensors and thermistors; 50 MHz CPU handles PID loops at 20 kHz update rate. | Use Scenario: Solid-state electricity meter with metrology IC interface, tamper detection, and optical/IR communication. IC Role / Device Role / Timing Role: Host processor managing metrology data aggregation, security crypto acceleration, and utility communication stacks. Use Value: UART with RS-485 supports DLMS/COSEM over PLC or wired networks; 32 kB flash stores dual firmware images for secure OTA updates; J-grade temp range ensures outdoor meter cabinet operation. |
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 |
|---|---|---|---|
| LPC1114FBD48/303 | Same core, flash, SRAM, and peripherals; rated for −40 °C to +85 °C (F-grade) instead of +105 °C (J-grade). | Not suitable for under-hood automotive or high-ambient industrial enclosures where >85 °C operation occurs. | Select when ambient temperature remains below 85 °C and cost sensitivity outweighs extended thermal margin. |
| LPC1114JBD48/323 | Same package and temperature grade; upgraded to 48 kB flash and retains 8 kB SRAM - no change to peripheral count or clock specs. | Required when firmware image size exceeds 32 kB due to added cryptographic libraries or larger RTOS footprint. | Choose when future firmware expansion or secure boot requirements demand additional flash capacity without changing PCB layout. |
Compared with LPC1114FBD48/303, the LPC1114JBD48/303QL offers guaranteed operation up to +105 °C for harsh environments, while LPC1114JBD48/323 provides 16 kB more flash for complex protocol stacks - both retain identical pinout, peripheral mapping, and debug interface compatibility.
Availability
LPC1114JBD48/303QL is available at Aetrix Electronics and suitable for industrial alarm systems, smart lighting controllers, white goods motor control, eMetering data acquisition, and RS-485 networked sensor nodes requiring stable component supply across extended temperature ranges.
Supply support for LPC1114JBD48/303QL 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 LPC1114JBD48/303QL - was designed for cost-sensitive, low-power embedded control applications demanding extended temperature operation, integrated analog peripherals, and robust communication interfaces in compact packages.
FAQ
What is the maximum operating frequency of the LPC1114JBD48/303QL?
The LPC1114JBD48/303QL 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 enables sub-20 ns instruction cycles for time-critical control tasks while maintaining low dynamic power consumption typical of the ARM Cortex-M0 architecture.
Does the LPC1114JBD48/303QL support hardware debugging?
Yes, the LPC1114JBD48/303QL supports Serial Wire Debug (SWD) through dedicated SWDIO (Pin 15) and SWCLK (Pin 29) pins. It is compatible with standard ARM debug probes (e.g., J-Link, CMSIS-DAP) and enables full breakpoint, watchpoint, and memory inspection capabilities without requiring additional debug circuitry or pins beyond the two SWD signals.
How many ADC channels does the LPC1114JBD48/303QL have, and what is their resolution?
The LPC1114JBD48/303QL features a 10-bit successive approximation register (SAR) ADC with up to 8 input channels (AD0–AD7), accessible on LQFP48 package pins. All channels share a common reference and achieve ≥1 LSB integral nonlinearity, supporting accurate temperature, voltage, and current sensing in industrial and appliance applications.
What is the purpose of the "J" suffix in LPC1114JBD48/303QL?
The "J" in LPC1114JBD48/303QL denotes the extended temperature grade: −40 °C to +105 °C. This distinguishes it from "F"-grade variants (−40 °C to +85 °C) and confirms qualification for deployment in high-ambient environments such as industrial motor drives, automotive under-hood modules, and outdoor utility meters where thermal stress exceeds standard commercial limits.
Can the LPC1114JBD48/303QL operate from a single supply voltage?
Yes, the LPC1114JBD48/303QL operates from a single supply voltage ranging from 1.8 V to 3.6 V, eliminating the need for separate analog/digital rails or external regulators. Its integrated power management unit (PMU) maintains stable internal voltages across this range, enabling direct connection to Li-ion batteries, USB 3.3 V rails, or regulated DC-DC outputs in portable and energy-harvesting systems.
Is the LPC1114JBD48/303QL pin-compatible with other LPC111x LQFP48 variants?
Yes, the LPC1114JBD48/303QL shares identical pinout and package dimensions with all other LPC111x devices in LQFP48 (e.g., LPC1113FBD48/303, LPC1115JBD48/303). Pin functions are consistent across the LPC1100XL family, allowing direct substitution where flash, SRAM, or temperature grade requirements align - verified by NXP's official pin compatibility documentation for the LQFP48 footprint.
LPC1114JBD48/303QL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC11xx
- Packaging:
- Bulk
- 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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1114JBD48/303QL FAQ
1.How can I place an order for LPC1114JBD48/303QL through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1114JBD48/303QL 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 LPC1114JBD48/303QL reliable?
The price and inventory of LPC1114JBD48/303QL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1114JBD48/303QL is usually 5 days.
3.What payment methods are accepted for LPC1114JBD48/303QL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1114JBD48/303QL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1114JBD48/303QL?
LPC1114JBD48/303QL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1114JBD48/303QL 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 LPC1114JBD48/303QL?
For technical support, including LPC1114JBD48/303QL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1114JBD48/303QL requirements.
6.How does Aetrix verify that LPC1114JBD48/303QL is sourced from the original manufacturer or authorized distributors?
All LPC1114JBD48/303QL 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 LPC1114JBD48/303QL meets industry standards.
7.What is the process for return or replacement of LPC1114JBD48/303QL?
All LPC1114JBD48/303QL units undergo pre-shipment inspection (PSI). If there is an issue with LPC1114JBD48/303QL, 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 LPC1114JBD48/303QL part is unused and in its original packaging.
Return procedure for LPC1114JBD48/303QL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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