My Inquiry
My Account
NXP Semiconductors LPC1115JBD48/303QL
- Part No.:
- LPC1115JBD48/303QL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC1115JBD48/303QL.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:445
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LPC1115JBD48/303 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, operating up to 50 MHz with 64 kB flash, 8 kB SRAM, and support for RS-485 UART, Fast-mode Plus I²C, dual SPI, 10-bit ADC (8-channel), and 42 GPIO pins. It targets cost-sensitive industrial control and smart sensor nodes requiring extended temperature operation.
For engineers reviewing the LPC1115JBD48/303 datasheet, LPC1115JBD48/303 pinout, LPC1115JBD48/303 application, or LPC1115JBD48/303 equivalent, this page delivers verified electrical specs, validated LQFP48 pin mapping, confirmed LPC1100XL series features including windowed watchdog timer and power profiles, and real-world use cases in metering and lighting systems.
Technical Context
The LPC1115JBD48/303 implements an ARM Cortex-M0 core with NVIC and Serial Wire Debug, paired with a programmable windowed watchdog timer and boot ROM-resident power profiles for runtime performance/power tuning. Its clock system integrates a 12 MHz ±1 % internal RC oscillator, crystal oscillator (1–25 MHz), and PLL for CPU frequency scaling.
Peripheral integration includes two SPI controllers with FIFO and multi-protocol capability, one UART with fractional baud rate generation and RS-485 support, one Fast-mode Plus I²C interface (1 Mbit/s), four general-purpose timers (two 32-bit, two 16-bit), and a 10-bit ADC with 8 input channels-fully enabled on the LQFP48 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 50 MHz max - enables deterministic real-time response with Thumb-2 instruction set and low gate count. |
| Flash Memory | 64 kB - sufficient for complex firmware with bootloader, communication stacks, and application logic in single-chip designs. |
| SRAM | 8 kB - supports multiple concurrent buffers for UART, SPI, and ADC data without external memory. |
| GPIO Pins | 42 - full I/O availability on LQFP48 package, configurable as interrupts, open-drain (LPC1100XL), or high-current (20 mA sink/source). |
| ADC | 10-bit, 8-channel - provides precision analog sensing across voltage, current, or temperature inputs in industrial monitoring. |
| I²C Interface | Fast-mode Plus (1 Mbit/s) - doubles standard I²C speed for faster sensor or EEPROM communication in time-critical subsystems. |
| Operating Temp | −40 °C to +105 °C (J-grade) - qualified for under-hood automotive modules, motor drives, and industrial PLC edge nodes. |
Pinout & Package
LQFP48 package: plastic low-profile quad flat package, 48 leads, 7 mm × 7 mm × 1.4 mm body, lead pitch 0.5 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24, 48 | VSS | Ground reference for digital and analog domains; decoupling required at each pin per layout guidelines. |
| 14, 25, 39 | VDD | 1.8–3.6 V supply input; requires local 100 nF ceramic decoupling per VDD pin. |
| 13, 26 | XTALIN / XTALOUT | Crystal oscillator connection points; supports 1–25 MHz crystals for precise timing or clock source redundancy. |
| 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 17, 18, 19, 20, 21, 22, 23, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 46, 47 | GPIO / Peripheral Multiplex | 42 configurable I/O pins supporting UART (RXD/TXD/RTS/CTS), SPI (SCK/MISO/MOSI/SSEL), I²C (SCL/SDA), ADC (AD0–AD7), timers, and wake-up interrupts. |
| 2, 47 | RESET / SWDIO | Active-low reset input and bidirectional Serial Wire Debug I/O - enables in-circuit programming and debug without JTAG header. |
| 41 | SWCLK | Serial Wire Debug clock input - synchronizes debug communication with host debugger during firmware development. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed Watchdog Timer | Prevents runaway code execution with configurable time window - critical for fail-safe operation in alarm systems and white goods. |
| Power Profiles in Boot ROM | One function call selects optimized power/performance modes - reduces firmware development effort for battery-powered or thermally constrained designs. |
| RS-485 UART Support | Hardware-level differential driver enable control - eliminates external transceiver logic in industrial bus nodes. |
| Configurable Open-Drain Mode | Per-pin software control of drive strength and termination - simplifies I²C bus design and mixed-voltage interfacing. |
| High-Current GPIO | 20 mA sink on I²C pins and 20 mA source on dedicated pin - directly drives LEDs or small relays without external drivers. |
Applications
| Smart Energy Metering | Industrial Lighting Control |
|---|---|
Use Scenario: Two-way communication and tariff calculation in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing RS-485 HAN communication, and sampling ADC for voltage/current inputs. Use Value: 64 kB flash stores DLMS/COSEM stack and firmware updates; 10-bit ADC meets IEC 62053 accuracy requirements; −40 °C to +105 °C rating ensures field reliability. | Use Scenario: DALI-2 or 0–10 V dimming control in commercial LED fixtures with thermal monitoring. IC Role / Device Role / Timing Role: System-on-chip managing LED driver PWM, ambient light sensing via ADC, and DALI bus arbitration over UART. Use Value: Dual SPI interfaces support independent LED channel control and sensor hub expansion; windowed WDT prevents flicker due to firmware hangs. |
| Fire & Security Alarm Panel | Appliance Motor Control |
Use Scenario: Zone monitoring, siren activation, and wireless reporting in residential security panels. IC Role / Device Role / Timing Role: Central MCU handling keypad scanning, smoke/door sensor polling, buzzer timing, and RF module handshaking via UART/SPI. Use Value: 42 GPIO enable direct connection to 16+ zones and status LEDs; power profiles extend battery life in backup mode; J-grade temp range covers garage or attic installations. | Use Scenario: BLDC motor commutation and fault protection in washing machine drum drives. IC Role / Device Role / Timing Role: Real-time motor controller using timer match outputs for six-step commutation and ADC for current sensing. Use Value: Four independent timers with capture/compare support precise 120° phase alignment; 8 kB SRAM buffers encoder position data and PID loop variables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC1114JBD48/303 | 32 kB flash, same 8 kB SRAM, identical peripherals and pinout - lower program storage capacity. | Suitable where firmware size remains under 30 kB and cost optimization is prioritized over future feature expansion. | Select when application firmware fits within 32 kB and no additional flash headroom is needed for field upgrades. |
| LPC11U15JBD48/303 | USB 2.0 device controller, 64 kB flash, 10 kB SRAM, same core/peripherals - adds USB connectivity and extra RAM. | Required for human-interface devices needing USB HID or CDC virtual COM port functionality. | Choose when USB interface is mandatory and board layout can accommodate identical LQFP48 footprint. |
Compared with LPC1114JBD48/303, the LPC1115JBD48/303 provides 32 kB more flash for larger protocol stacks or OTA update partitions; versus LPC11U15JBD48/303, it omits USB but reduces BOM cost and power consumption in non-USB applications.
Availability
LPC1115JBD48/303 is available at Aetrix Electronics and suitable for smart metering, industrial lighting control, fire alarm systems, and appliance motor control requiring stable component supply across long production lifecycles.
Supply support for LPC1115JBD48/303 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 LPC1115JBD48/303 - was designed for cost-sensitive, low-power embedded applications demanding extended temperature operation, robust peripheral integration, and simplified power management via boot ROM APIs.
FAQ
What is the maximum operating frequency of the LPC1115JBD48/303?
The LPC1115JBD48/303 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 is fully supported across the −40 °C to +105 °C industrial temperature range specified for the J-grade variant.
Does the LPC1115JBD48/303 support in-system programming (ISP)?
Yes, the LPC1115JBD48/303 supports In-System Programming (ISP) via its built-in bootloader, accessible through UART0 using standard ISP commands. This enables firmware updates in the field without requiring a debug probe, and is fully compatible with NXP's Flash Magic utility and custom host applications.
How many ADC input channels are available on the LPC1115JBD48/303?
The LPC1115JBD48/303 provides eight 10-bit ADC input channels (AD0–AD7), all physically routed to pins on the LQFP48 package. These channels support single-ended conversion with programmable sample rate and hardware trigger sources including timer match events and external pins.
Is the LPC1115JBD48/303 pin-compatible with other LPC11xx LQFP48 variants?
Yes, the LPC1115JBD48/303 shares identical pinout and package dimensions with all LPC11xx family members in LQFP48 (e.g., LPC1113/1114JBD48/303), including matching power, ground, crystal, reset, SWD, and peripheral signal assignments - enabling drop-in replacement within the same series.
What debug interface does the LPC1115JBD48/303 use?
The LPC1115JBD48/303 uses Serial Wire Debug (SWD) with two dedicated pins: SWDIO (shared with PIO1_3) and SWCLK (shared with PIO0_10). No JTAG header is required, and debugging is supported by all major IDEs including MCUXpresso IDE, Keil µVision, and SEGGER Embedded Studio.
LPC1115JBD48/303QL 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:
- 64KB (64K 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:
LPC1115JBD48/303QL FAQ
1.How can I place an order for LPC1115JBD48/303QL through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC1115JBD48/303QL 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 LPC1115JBD48/303QL reliable?
The price and inventory of LPC1115JBD48/303QL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC1115JBD48/303QL is usually 5 days.
3.What payment methods are accepted for LPC1115JBD48/303QL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC1115JBD48/303QL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC1115JBD48/303QL?
LPC1115JBD48/303QL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC1115JBD48/303QL 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 LPC1115JBD48/303QL?
For technical support, including LPC1115JBD48/303QL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC1115JBD48/303QL requirements.
6.How does Aetrix verify that LPC1115JBD48/303QL is sourced from the original manufacturer or authorized distributors?
All LPC1115JBD48/303QL 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 LPC1115JBD48/303QL meets industry standards.
7.What is the process for return or replacement of LPC1115JBD48/303QL?
All LPC1115JBD48/303QL units undergo pre-shipment inspection (PSI). If there is an issue with LPC1115JBD48/303QL, 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 LPC1115JBD48/303QL part is unused and in its original packaging.
Return procedure for LPC1115JBD48/303QL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC1115JBD48/303QL Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
