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NXP Semiconductors LPC1114JBD48/323QL
- Part No.:
- LPC1114JBD48/323QL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC1114JBD48/323QL.pdf
- Description:
- IC MCU 32BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,708
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Product details
Overview
LPC1114JBD48/323QL from NXP Semiconductors is an ARM Cortex-M0 32-bit microcontroller in LQFP48 package, featuring 48 kB flash, 8 kB SRAM, 42 GPIO pins, 10-bit ADC (8-channel), and integrated UART, I²C-Fast+ (1 Mbit/s), and dual SPI interfaces. It operates at up to 50 MHz and supports industrial temperature range (−40 °C to +105 °C), targeting embedded control in lighting and alarm systems.
For engineers reviewing the LPC1114JBD48/323QL datasheet, LPC1114JBD48/323QL pinout, LPC1114JBD48/323QL application, or LPC1114JBD48/323QL equivalent, key selection criteria include flash size (48 kB), extended temperature rating (J-grade), LQFP48 pin count and layout, windowed watchdog timer, and power profile support for low-power operation.
Technical Context
The LPC1114JBD48/323QL belongs to the LPC1100XL series, incorporating a windowed watchdog timer (WWDT), configurable open-drain GPIO mode, and power profiles stored in boot ROM for runtime performance/power tuning. Its clock system includes a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), and PLL for CPU frequencies up to 50 MHz.
It integrates four general-purpose timers (two 32-bit, two 16-bit) with match/capture capability, a 10-bit ADC with multiplexed inputs across 8 pins, and serial interfaces including UART with RS-485 support, I²C-bus Fast-mode Plus (1 Mbit/s), and two SPI controllers with FIFO and multi-protocol features - all accessible on the LQFP48 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, supports Thumb-2 instruction set for compact code and efficient interrupt handling. |
| Max Clock Frequency | 50 MHz - enables real-time control tasks with sub-microsecond timer resolution and fast peripheral response. |
| Flash Memory | 48 kB - sufficient for firmware with protocol stacks (e.g., Modbus RTU over UART) and application logic in metering or lighting control. |
| SRAM | 8 kB - supports multiple concurrent buffers (e.g., UART FIFO, ADC sample array, stack for nested interrupts). |
| GPIO Pins | 42 - full LQFP48 pin utilization; includes configurable pull-up/pull-down, edge/level interrupt, and high-current sink (20 mA) on select I²C pins. |
| ADC | 10-bit, 8-channel - allows simultaneous monitoring of analog sensors (e.g., ambient light, temperature, voltage rails) without external mux. |
| I²C Interface | Fast-mode Plus (1 Mbit/s) - doubles standard I²C speed for faster sensor data acquisition in time-critical lighting feedback loops. |
| Temperature Range | −40 °C to +105 °C (J-grade) - qualified for under-hood automotive accessories or enclosed industrial lighting fixtures. |
Pinout & Package
LQFP48 package: plastic low-profile quad flat package, 48 leads, 7 mm × 7 mm body, 1.4 mm height, exposed pad optional per design. Pin pitch: 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VSS) | Ground | Primary digital ground reference; must be connected to PCB ground plane for noise immunity and ADC accuracy. |
| 2 (PIO0_0/RESET) | Reset Input | Active-low reset pin; also functions as GPIO; internal pull-up ensures reliable startup after power-on or brownout. |
| 3 (PIO0_1/CLKOUT) | Programmable Clock Output | Outputs divided system clock (IRC, crystal, or CPU clock); used for synchronizing external peripherals or debug timing analysis. |
| 4 (PIO0_2/SSEL0) | SPI0 Slave Select | Active-low chip select for SPI0 bus; configurable as GPIO; supports hardware-controlled slave mode in daisy-chain configurations. |
| 5 (PIO0_3) | General Purpose I/O | Multi-function pin; default GPIO; can be assigned to UART CTS, I²C SDA, or timer capture input via IOCONFIG register. |
| 48 (PIO3_5) | General Purpose I/O / TXD | Supports UART transmit function; also serves as CT16B1_CAP1 and TXD for secondary UART; enables dual-serial communication without external transceivers. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed Watchdog Timer (WWDT) | Prevents runaway code by requiring feed within defined time window - critical for fail-safe alarm system firmware. |
| Power Profiles in Boot ROM | Enables runtime switching between performance and ultra-low-power modes via single API call - reduces active current to <100 µA in Deep-sleep. |
| Configurable Open-Drain Mode | Allows direct interface with 5 V logic or wired-AND buses (e.g., I²C) without level shifters - simplifies BOM in mixed-voltage lighting designs. |
| UART with RS-485 Support | Hardware flow control (RTS/CTS) and driver enable control built-in - eliminates need for external RS-485 transceiver logic in industrial bus nodes. |
| High-Current Sink on I²C Pins | 20 mA drive strength on SDA/SCL - supports longer bus traces and higher capacitance loads typical in panel-mounted lighting controllers. |
| Serial Wire Debug (SWD) | 2-pin debug interface (SWDIO/SWCLK) - enables in-circuit programming and real-time trace without dedicated JTAG pins, saving PCB space. |
Applications
| Lighting Control | Alarm System Node |
|---|---|
Use Scenario: Digital LED driver with dimming, thermal monitoring, and DALI/DMX compatibility. IC Role / Device Role / Timing Role: Main controller executing PWM generation, ADC-based temperature sampling, and UART-based DALI command parsing. Use Value: 48 kB flash stores DALI stack + lighting profiles; 42 GPIO support addressable LED strings and status indicators; J-grade temp rating ensures reliability in enclosed luminaires. | Use Scenario: Wireless sensor node (door/window contact, PIR) with local siren and wired alarm panel interface. IC Role / Device Role / Timing Role: Sensor aggregator and RS-485 bus master communicating with central panel; manages wake-on-interrupt and low-power sleep cycles. Use Value: WWDT prevents false alarms from firmware lockup; 10-bit ADC reads analog sensor outputs directly; UART RS-485 mode enables long-distance panel connection without external transceiver. |
| eMetering Interface | White Goods UI Controller |
Use Scenario: Smart electricity meter front-end handling pulse counting, tamper detection, and HAN communication. IC Role / Device Role / Timing Role: Isolated interface MCU managing optical pulse inputs, EEPROM logging, and I²C Fast+ communication with metrology IC. Use Value: I²C Fast+ (1 Mbit/s) accelerates data transfer from metrology IC; 48 kB flash accommodates secure bootloader and firmware updates; J-grade supports transformer-coupled meter environments. | Use Scenario: Front-panel controller for washing machine with touch keys, display backlight, and motor status reporting. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch scanning, LED backlight PWM, and UART communication with main MCU. Use Value: 8 kB SRAM buffers touch scan data and display frame buffer; configurable open-drain GPIO drives LED strings directly; power profiles optimize battery backup during power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1114FBD48/323 | Same core, flash, SRAM, and peripherals, but rated for −40 °C to +85 °C (F-grade) instead of J-grade. | Suitable for indoor consumer appliances but not under-hood or outdoor-rated enclosures. | Select when industrial temperature range is not required; lower cost and same footprint. |
| LPC1114JBD48/333 | 56 kB flash (vs. 48 kB), identical J-grade temp rating, same LQFP48 package and pinout. | Better suited for applications requiring larger firmware (e.g., OTA update capability, cryptographic libraries). | Choose when future firmware expansion headroom is needed; pin-compatible upgrade path with no PCB change. |
Compared with LPC1114FBD48/323, the LPC1114JBD48/323QL adds extended temperature operation critical for harsh environments; compared with LPC1114JBD48/333, it trades 8 kB flash for lower cost while retaining identical peripheral set and thermal robustness.
Availability
LPC1114JBD48/323QL is available at Aetrix Electronics and suitable for lighting control, alarm system nodes, and eMetering interfaces requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature compliance.
Supply support for LPC1114JBD48/323QL 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 LPC1114JBD48/323QL - was designed for cost-sensitive, low-power embedded control where extended temperature operation, integrated analog peripherals, and robust debug support are essential.
FAQ
What is the maximum operating frequency of the LPC1114JBD48/323QL?
The LPC1114JBD48/323QL operates at a maximum CPU frequency of 50 MHz, achievable using the on-chip PLL driven by either the internal 12 MHz RC oscillator or an external crystal. This frequency enables deterministic real-time response for timer-based control loops and high-throughput serial communication in applications such as lighting dimming and alarm signaling.
Does the LPC1114JBD48/323QL support in-system programming (ISP)?
Yes, the LPC1114JBD48/323QL supports In-System Programming (ISP) via its built-in bootloader, accessible through UART0 using standard ISP commands. This allows field firmware updates without requiring a dedicated debugger, and is fully compatible with NXP's Flash Magic utility and custom host applications implementing the ISP protocol.
What is the ADC resolution and channel count on the LPC1114JBD48/323QL?
The LPC1114JBD48/323QL integrates a 10-bit successive-approximation ADC with up to 8 input channels (AD0–AD7), all accessible on the LQFP48 package. The ADC supports programmable conversion speed, burst mode, and hardware trigger sources (e.g., timer match), enabling precise analog sensing for temperature, light, or voltage monitoring in industrial control applications.
Is the LPC1114JBD48/323QL pin-compatible with other LPC111x LQFP48 variants?
Yes, the LPC1114JBD48/323QL shares identical LQFP48 pinout and electrical characteristics with all LPC111x devices in the same package (e.g., LPC1113FBD48/303, LPC1114FBD48/302, LPC1115JBD48/303). Pin compatibility extends across flash sizes, temperature grades, and series (LPC1100, LPC1100L, LPC1100XL), enabling flexible BOM management and design reuse.
What debug interface does the LPC1114JBD48/323QL provide?
The LPC1114JBD48/323QL provides Serial Wire Debug (SWD) interface using two dedicated pins (SWDIO and SWCLK), supporting full JTAG-equivalent functionality including breakpoints, watchpoints, memory inspection, and real-time variable monitoring. It is compatible with standard ARM-compliant debug probes (e.g., LPC-Link2, SEGGER J-Link) and IDEs like MCUXpresso IDE and Keil MDK.
LPC1114JBD48/323QL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC1100XL
- Packaging:
- Tray
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC1114JBD48/323QL FAQ
1.How can I place an order for LPC1114JBD48/323QL through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1114JBD48/323QL 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 LPC1114JBD48/323QL reliable?
The price and inventory of LPC1114JBD48/323QL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1114JBD48/323QL is usually 5 days.
3.What payment methods are accepted for LPC1114JBD48/323QL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1114JBD48/323QL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1114JBD48/323QL?
LPC1114JBD48/323QL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1114JBD48/323QL 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 LPC1114JBD48/323QL?
For technical support, including LPC1114JBD48/323QL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1114JBD48/323QL requirements.
6.How does Aetrix verify that LPC1114JBD48/323QL is sourced from the original manufacturer or authorized distributors?
All LPC1114JBD48/323QL 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 LPC1114JBD48/323QL meets industry standards.
7.What is the process for return or replacement of LPC1114JBD48/323QL?
All LPC1114JBD48/323QL units undergo pre-shipment inspection (PSI). If there is an issue with LPC1114JBD48/323QL, 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 LPC1114JBD48/323QL part is unused and in its original packaging.
Return procedure for LPC1114JBD48/323QL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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