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NXP Semiconductors LPC1114FBD48/323J
- Part No.:
- LPC1114FBD48/323J
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC1114FBD48/323J.pdf
- Description:
- IC MCU 32BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LPC1114FBD48/323J from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in LQFP48 package, featuring 48 kB flash, 8 kB SRAM, up to 42 GPIO pins, a 10-bit ADC with 8-channel input multiplexing, and dual SPI interfaces - deployed in lighting control, e-metering, and alarm systems requiring low-power embedded processing.
For engineers reviewing the LPC1114FBD48/323J datasheet, LPC1114FBD48/323J pinout, LPC1114FBD48/323J application, or LPC1114FBD48/323J equivalent, key selection criteria include its LPC1100XL series windowed watchdog timer, Fast-mode Plus I²C (1 Mbit/s), RS-485 UART support, and 48-pin LQFP thermal performance for industrial temperature operation (−40 °C to +85 °C).
Technical Context
The LPC1114FBD48/323J implements the ARM Cortex-M0 core with NVIC and Serial Wire Debug, operating at up to 50 MHz via internal 12 MHz RC oscillator (±1 %) or external crystal (1–25 MHz). Its clock system includes PLL, programmable watchdog oscillator (9.4 kHz–2.3 MHz), and configurable CLKOUT divider.
It belongs to the LPC1100XL series, enabling power profile optimization via boot ROM functions, windowed WDT, and configurable open-drain GPIO - distinguishing it from base LPC1100 and LPC1100L variants. All peripherals (UART, I²C, SPI, timers, ADC) are accessible on the LQFP48 package with full 42-GPIO availability.
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++ code execution with Thumb-2 instruction set and low interrupt latency. |
| Flash Memory | 48 kB on-chip flash - sufficient for medium-complexity firmware including bootloader, communication stacks, and sensor processing logic. |
| SRAM | 8 kB on-chip SRAM - supports real-time data buffering, stack usage for nested interrupts, and small RTOS kernel deployment. |
| GPIO | Up to 42 general-purpose I/O pins with configurable pull-up/pull-down and open-drain mode - allows direct interface to LEDs, buttons, sensors, and bus transceivers without external level-shifting. |
| ADC | 10-bit successive approximation ADC with 8-channel multiplexer - provides precise analog sensing for voltage monitoring, thermistor reading, or potentiometer position detection. |
| I²C Interface | Fast-mode Plus I²C-bus (1 Mbit/s) with multi-address recognition and monitor mode - enables high-speed communication with EEPROMs, digital sensors, and display controllers in noise-sensitive environments. |
| UART | RS-485/EIA-485 UART with fractional baud rate generation and FIFO - supports robust long-distance industrial serial communication with automatic direction control capability. |
| Power Range | Single 1.8 V to 3.6 V supply - compatible with common Li-ion battery, 3.3 V LDO, or energy-harvesting power sources without level translation. |
Pinout & Package
LQFP48 package: plastic low-profile quad flat package, 48 leads, body size 7 × 7 × 1.4 mm, standard JEDEC footprint, suitable for reflow assembly and thermal management in industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO port 0 pin 0 | Active-low hardware reset; also usable as general-purpose I/O with interrupt capability and configurable pull-up/down. |
| XTALIN / XTALOUT | Crytal oscillator input/output | Supports external 1–25 MHz crystal for precise timing; internal 12 MHz RC oscillator available as fallback clock source. |
| SWDIO / SWCLK | Serial Wire Debug I/O and clock | Two-pin debug interface for programming and real-time debugging - eliminates need for JTAG header space and simplifies production test access. |
| PIO0_4/SCL / PIO0_5/SDA | I²C-bus clock and data | Fast-mode Plus I²C interface with 1 Mbit/s capability and multi-address recognition - enables connection to multiple slave devices on shared bus. |
| PIO0_7/CTS / PIO1_5/RTS | UART hardware flow control | Full RS-485 handshaking support - critical for reliable data transmission in noisy industrial networks with variable packet lengths. |
| PIO1_4/AD5 / PIO1_11/AD7 | ADC input channels | Two of eight 10-bit ADC inputs routed to dedicated pins - allows simultaneous sampling of multiple analog signals with minimal PCB routing complexity. |
| VDD / VSS | Power supply and ground | Dual VDD pins (pins 24 & 48) and dual VSS pins (pins 13 & 25) reduce supply impedance and improve noise immunity in mixed-signal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed Watchdog Timer (WWDT) | Prevents runaway code execution with time-windowed refresh requirement - essential for fail-safe operation in alarm systems and metering applications. |
| Configurable Open-Drain GPIO | Enables direct wired-AND bus interfacing (e.g., I²C, SMBus, interrupt sharing) without external pull-up resistors on selected pins. |
| Power Profile Optimization | Boot ROM-based function calls allow dynamic switching between performance, low-power sleep, and deep power-down modes - extends battery life in portable lighting controls. |
| RS-485 UART with Auto Direction Control | Hardware-assisted half-duplex control eliminates software timing dependency - ensures reliable multi-drop communication in building automation networks. |
| High-Current GPIO Drivers | 20 mA sink capability on two I²C pins and 20 mA source on one GPIO - drives LEDs or small relays directly without external drivers. |
| Programmable Clock Output (CLKOUT) | Dividable system, IRC, CPU, or watchdog clock output on PIO0_1 - facilitates clock distribution to external ADCs, sensors, or logic circuits with synchronized timing. |
Applications
| Smart Lighting Control | e-Metering Systems |
|---|---|
Use Scenario: Dimmable LED driver with ambient light sensing and DALI/KNX gateway functionality. IC Role / Device Role / Timing Role: Main controller executing PWM dimming algorithms, ADC-based lux measurement, and bidirectional serial protocol handling. Use Value: 48 kB flash stores DALI stack and calibration tables; 42 GPIO enable direct LED channel control and sensor interfacing; WWDT ensures safe failure response during firmware updates. | Use Scenario: Residential electricity meter with pulse counting, tamper detection, and HAN communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology front-end, secure data logging, and RF/PLC communication interface. Use Value: RS-485 UART connects to utility concentrators; 10-bit ADC reads shunt voltage; windowed WDT prevents undetected firmware hangs during critical billing cycles. |
| Industrial Alarm Panels | White Goods Control |
Use Scenario: Fire/smoke detection panel with zone monitoring, siren control, and remote reporting via GSM module. IC Role / Device Role / Timing Role: Central alarm processor handling sensor polling, event prioritization, and serial communication with modem. Use Value: 8 kB SRAM buffers alarm logs; dual SPI interfaces connect to flash memory and display driver; open-drain GPIO supports wired-OR fault signaling across zones. | Use Scenario: Washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Primary MCU coordinating motor control timing, ADC-based pressure/temperature feedback, and button/display I/O. Use Value: 50 MHz Cortex-M0 delivers real-time PID loop execution; 42 GPIO route all front-panel keys, LEDs, and relay drivers; low-voltage operation (1.8 V) supports energy-efficient standby modes. |
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 |
|---|---|---|---|
| LPC1114FBD48/333 | 56 kB flash (vs. 48 kB), same 8 kB SRAM, identical LQFP48 package and peripheral set. | Preferred where firmware growth headroom is required for future feature updates or larger communication stacks. | Select when additional flash margin is needed without changing PCB layout or software abstraction layer. |
| LPC1114JBD48/323 | Identical 48 kB flash, 8 kB SRAM, and peripherals; extended temperature range (−40 °C to +105 °C vs. −40 °C to +85 °C). | Suitable for under-hood automotive accessories or high-ambient industrial enclosures where thermal derating is critical. | Choose for deployments exceeding 85 °C ambient, with no functional or software trade-offs. |
Compared with LPC1114FBD48/323J, the /333 variant offers 8 kB more flash for firmware scalability, while the J-temperature /323 variant maintains identical functionality with enhanced thermal reliability - both retain pin compatibility, peripheral mapping, and software binary compatibility.
Availability
LPC1114FBD48/323J is available at Aetrix Electronics and suitable for smart lighting control, e-metering systems, and industrial alarm panels requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature compliance.
Supply support for LPC1114FBD48/323J 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 LPC1100XL series - including LPC1114FBD48/323J - was designed for cost-sensitive, low-power embedded control applications demanding robustness, integrated analog peripherals, and simplified power management in industrial and consumer equipment.
FAQ
What is the maximum operating frequency of the LPC1114FBD48/323J?
The LPC1114FBD48/323J operates at a maximum CPU frequency of 50 MHz, achievable using either the internal 12 MHz RC oscillator (trimmed to ±1 % accuracy) or an external crystal oscillator (1–25 MHz) with PLL multiplication. This frequency supports real-time control loops and moderate data throughput in industrial sensor nodes and lighting controllers.
Does the LPC1114FBD48/323J support RS-485 communication?
Yes, the LPC1114FBD48/323J includes a dedicated UART with RS-485/EIA-485 support, featuring fractional baud rate generation, internal FIFO, and hardware flow control (CTS/RTS). It enables reliable multi-drop communication in building automation and utility metering networks without external transceiver logic for basic implementations.
What is the ADC resolution and channel count on the LPC1114FBD48/323J?
The LPC1114FBD48/323J integrates a 10-bit successive approximation ADC with input multiplexing across 8 pins (AD[7:0]), all accessible on the LQFP48 package. This provides sufficient precision for voltage monitoring, temperature sensing via thermistors, and position detection in cost-sensitive embedded systems.
Is the LPC1114FBD48/323J pin-compatible with other LPC111x LQFP48 variants?
Yes, the LPC1114FBD48/323J shares identical LQFP48 pinout and electrical characteristics with all LPC111x family members in the same package - including LPC1113FBD48, LPC1114FBD48/301–333, and LPC1115FBD48 - enabling hardware reuse across flash-size and temperature-grade variants without PCB redesign.
What debug interface does the LPC1114FBD48/323J support?
The LPC1114FBD48/323J supports Serial Wire Debug (SWD) via SWDIO and SWCLK pins - a 2-pin ARM-standard interface that replaces JTAG for programming, breakpoint setting, and real-time variable inspection. This reduces PCB footprint and simplifies test fixture design compared to 5-pin JTAG implementations.
LPC1114FBD48/323J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC1100XL
- 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:
- 42
- Program Memory Size:
- 48KB (48K 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:
LPC1114FBD48/323J FAQ
1.How can I place an order for LPC1114FBD48/323J through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1114FBD48/323J 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 LPC1114FBD48/323J reliable?
The price and inventory of LPC1114FBD48/323J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1114FBD48/323J is usually 5 days.
3.What payment methods are accepted for LPC1114FBD48/323J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1114FBD48/323J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1114FBD48/323J?
LPC1114FBD48/323J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1114FBD48/323J 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 LPC1114FBD48/323J?
For technical support, including LPC1114FBD48/323J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1114FBD48/323J requirements.
6.How does Aetrix verify that LPC1114FBD48/323J is sourced from the original manufacturer or authorized distributors?
All LPC1114FBD48/323J 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 LPC1114FBD48/323J meets industry standards.
7.What is the process for return or replacement of LPC1114FBD48/323J?
All LPC1114FBD48/323J units undergo pre-shipment inspection (PSI). If there is an issue with LPC1114FBD48/323J, 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 LPC1114FBD48/323J part is unused and in its original packaging.
Return procedure for LPC1114FBD48/323J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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