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NXP Semiconductors LPC11U24FBD48/301,
- Part No.:
- LPC11U24FBD48/301,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC11U24FBD48/301,.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,428
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Product details
Overview
LPC11U24FBD48/301 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, operating at up to 50 MHz with 32 kB flash, 6 kB SRAM, 2 kB EEPROM, and integrated Full-Speed USB 2.0 device controller. It features a 10-bit ADC (8-channel), two SSP interfaces, Fast-mode Plus I²C, RS-485-capable USART, four timers, and 40 GPIO pins - deployed in USB audio devices and industrial control systems.
For engineers reviewing the LPC11U24FBD48/301 datasheet, LPC11U24FBD48/301 pinout, LPC11U24FBD48/301 application, or LPC11U24FBD48/301 equivalent, key selection criteria include USB device stack support in ROM, byte-programmable EEPROM, fractional baud rate generation in USART, and wake-up capability from Deep power-down via dedicated WAKEUP pin (PIO0_16).
Technical Context
The LPC11U24FBD48/301 implements a single-core ARM Cortex-M0 CPU with NVIC and system tick timer, paired with dual PLLs - one for CPU clocking (up to 50 MHz) and a dedicated PLL for USB timing compliance. Its memory subsystem includes boot ROM (16 kB) hosting USB drivers, ISP/IAP firmware, and power profile APIs.
Digital peripherals are routed through configurable IOCON registers supporting pull-up/pull-down, repeater, and open-drain modes on most pins. Analog functions (ADC inputs AD0–AD7) disable digital circuitry when active, and true open-drain I²C pins (PIO0_4/SCL, PIO0_5/SDA) support Fast-mode Plus (1 Mbit/s) with external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, supports Thumb-2 instruction set for compact code size vs. 8/16-bit MCUs. |
| Max Clock Frequency | 50 MHz - achieved via PLL using internal 12 MHz IRC or external crystal (1–25 MHz); enables real-time USB frame handling. |
| Memory | 32 kB flash (in-system programmable), 6 kB SRAM, 2 kB byte-erasable EEPROM - supports field firmware updates without external storage. |
| USB Interface | Full-Speed USB 2.0 device controller with ROM-based drivers - eliminates need for external USB PHY or host-side driver development. |
| ADC | 10-bit SAR ADC with 8 input channels (AD0–AD7), 400 kS/s max sample rate - suitable for sensor interfacing in medical and industrial monitoring. |
| I/O & Timers | 40 GPIO pins (5 V tolerant), four general-purpose timers (two 32-bit, two 16-bit), 5 capture/13 match outputs - supports motor control and pulse-width measurement. |
| Power Modes | Four low-power states: Sleep, Deep-sleep, Power-down, Deep power-down - Deep power-down draws <1 µA and wakes via PIO0_16 or USB activity. |
Pinout & Package
LQFP48 package: plastic low-profile quad flat package, 48 leads, 7 mm × 7 mm × 1.4 mm body (SOT313-2). Pin 1 index located at top-left corner; exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO | Active-low reset with 20 ns glitch filter; doubles as debug select (LOW = JTAG, HIGH = SWD); must be pulled HIGH externally in Deep power-down mode. |
| USB_DP / USB_DM | USB differential pair | Full-Speed USB 2.0 D+ and D− lines compliant with USB spec rev 2.0; require 27 Ω series resistors and proper PCB routing for EMI control. |
| PIO0_16/AD5/CT32B1_MAT3/WAKEUP | Multi-function pin | Primary wake-up source from Deep power-down; also serves as ADC input 5 and match output 3 for 32-bit timer 1 - function selected via IOCON register. |
| PIO0_4/SCL & PIO0_5/SDA | I²C-bus interface | Open-drain pins supporting Fast-mode Plus (1 Mbit/s); high-current sink only when Fast-mode Plus enabled in IOCON; require external pull-ups. |
| VDD / VSS | Power supply | Single 3.3 V supply (1.8–3.6 V range); VDD also serves as ADC reference voltage - decoupling capacitors required per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based USB stack | Eliminates external USB PHY and reduces firmware development time; supports USB HID, CDC, and MSC class implementations out of box. |
| Byte-erasable EEPROM | Enables reliable non-volatile parameter storage (e.g., calibration data, device ID) without block-level erase overhead or wear leveling firmware. |
| Smart card interface support | USART configured for ISO/IEC 7816-3 asynchronous smart card protocol - used in secure access and payment terminals. |
| Programmable Windowed Watchdog | WWDT with internal low-power oscillator prevents runaway code while allowing flexible timeout windows - critical for fail-safe industrial controllers. |
| Power profiles in boot ROM | Pre-validated power/performance configurations (e.g., "Low Power USB Active") invoked via single API call - accelerates power optimization. |
Applications
| USB Audio Interface | Industrial Sensor Hub |
|---|---|
Use Scenario: Embedded USB microphone array or DAC-based audio playback device requiring plug-and-play operation on Windows/macOS/Linux. IC Role / Device Role / Timing Role: USB device controller with integrated audio class firmware; handles USB enumeration, isochronous data transfers, and sample rate synchronization via USB SOF. Use Value: ROM-based USB drivers reduce BOM cost and firmware footprint; 10-bit ADC supports analog mic preamp digitization; 40 GPIO enable LED/mute button control. |
Use Scenario: DIN-rail mounted environmental monitor collecting temperature, humidity, and CO₂ via analog and digital sensors in factory settings. IC Role / Device Role / Timing Role: Central data aggregator with RS-485 UART for Modbus RTU communication to PLCs; uses timers for periodic sensor polling and ADC for analog sensor reads. Use Value: 2 kB EEPROM stores calibration coefficients and device configuration; Deep power-down mode (<1 µA) extends battery life in wireless variants; 5 V-tolerant GPIO simplify interfacing with legacy industrial I/O. |
| Medical Handheld Scanner | Consumer Peripheral Controller |
Use Scenario: Portable barcode or RFID scanner powered by coin cell, requiring fast wake-up and low active current for >1-year battery life. IC Role / Device Role / Timing Role: System controller managing imaging sensor, decode engine, and USB HID interface; uses WAKEUP pin (PIO0_16) for instant resume from Deep power-down. Use Value: Single 3.3 V supply simplifies power design; 32 kB flash accommodates image processing algorithms and USB HID descriptor tables; 5 V-tolerant GPIO interface directly with scanner trigger buttons. |
Use Scenario: Gaming keyboard or mechanical switch controller needing responsive key matrix scanning and RGB LED control over USB. IC Role / Device Role / Timing Role: USB HID device implementing custom report descriptors; uses GPIO for matrix scan and PWM-capable timers for LED dimming. Use Value: Fractional baud rate generator in USART supports precise timing for external debug UART; high-current GPIO (20 mA sink/source) drive LEDs directly; 40 GPIO support large key matrices (e.g., 16×16). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11U35FBD48/401 | Higher memory: 64 kB flash, 12 kB SRAM, 4 kB EEPROM; adds second USB endpoint buffer and enhanced debug trace. | Better suited for complex USB composite devices (e.g., HID + MSC) or larger firmware images requiring more RAM. | Select when firmware exceeds 32 kB or dual USB interfaces needed; same LQFP48 footprint but higher cost. |
| STM32F072CBT6 | ARM Cortex-M0+, 48 MHz, 128 kB flash, 16 kB SRAM; USB 2.0 FS device with crystal-less operation; no on-chip EEPROM. | Requires external EEPROM for non-volatile storage; superior analog performance (12-bit ADC, 1.0 µs conversion) but lacks ROM-based USB stack. | Choose for higher analog precision or crystal-less USB; add external EEPROM if parameter retention is critical. |
Compared with LPC11U24FBD48/301, the LPC11U35FBD48/401 offers scalable memory for future firmware growth, while the STM32F072CBT6 trades integrated EEPROM for greater ADC resolution and crystal-less USB - both require PCB layout review due to differing pinouts and power requirements.
Availability
LPC11U24FBD48/301 is available at Aetrix Electronics and suitable for USB audio devices, industrial sensor hubs, and medical handheld scanners requiring stable component supply across production lifecycles.
Supply support for LPC11U24FBD48/301 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in ARM-based microcontrollers and interface IP.
The LPC11U2x product line targets cost-sensitive, USB-connected embedded applications where low power, small footprint, and rapid time-to-market are critical - emphasizing ROM-resident USB stacks and simplified power management.
FAQ
What USB device classes does the LPC11U24FBD48/301 support natively?
The LPC11U24FBD48/301 includes ROM-based USB device stack supporting HID, CDC ACM (virtual COM port), and MSC (mass storage) classes. Firmware can instantiate these classes without external USB PHY or driver development. The LPC11U24FBD48/301 does not support USB host mode or high-speed operation - only Full-Speed (12 Mbps) device functionality is implemented.
Does the LPC11U24FBD48/301 require an external crystal for USB operation?
No - the LPC11U24FBD48/301 integrates a dedicated USB PLL and can operate USB in Full-Speed mode using its internal 12 MHz IRC oscillator, eliminating the need for an external crystal. An external crystal (1–25 MHz) is optional and used primarily for higher-precision system timing or when the IRC's ±1% accuracy is insufficient for application requirements. The LPC11U24FBD48/301 datasheet confirms USB timing compliance with IRC alone.
How is non-volatile data stored on the LPC11U24FBD48/301?
The LPC11U24FBD48/301 provides 2 kB of on-chip byte-erasable and byte-programmable EEPROM, accessible via IAP calls from application firmware. This eliminates reliance on external serial EEPROM or flash, reducing BOM count and improving reliability. Unlike flash, EEPROM supports single-byte writes without block erase - ideal for storing calibration values, device IDs, or user preferences. The LPC11U24FBD48/301 EEPROM endurance is rated for 100,000 write cycles.
Can the LPC11U24FBD48/301 wake from Deep power-down using sources other than PIO0_16?
No - only the dedicated WAKEUP pin (PIO0_16) can exit Deep power-down mode. Other wake sources - including GPIO interrupts, watchdog timeout, or USB activity - are disabled in Deep power-down to minimize leakage. The LPC11U24FBD48/301 datasheet explicitly states that PIO0_16 is the sole wake-up pin in this mode, requiring external pull-down to trigger wake-up and external pull-up to enter Deep power-down. All other GPIO pins are frozen during Deep power-down.
What debug interfaces are supported by the LPC11U24FBD48/301?
The LPC11U24FBD48/301 supports Serial Wire Debug (SWD) and standard JTAG (IEEE 1149.1) interfaces. SWD uses SWCLK and SWDIO pins (PIO0_10 and PIO0_15) for minimal-pin debugging; JTAG requires TCK, TMS, TDO, TDI, and TRST (PIO0_10, PIO0_12, PIO0_13, PIO0_11, PIO0_14). Both interfaces support full run-control, memory access, and flash programming. The LPC11U24FBD48/301 does not support SWO trace output.
LPC11U24FBD48/301, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC11Uxx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, Microwire, SPI, SSI, SSP, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- 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:
LPC11U24FBD48/301, FAQ
1.How can I place an order for LPC11U24FBD48/301, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11U24FBD48/301, 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 LPC11U24FBD48/301, reliable?
The price and inventory of LPC11U24FBD48/301, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11U24FBD48/301, is usually 5 days.
3.What payment methods are accepted for LPC11U24FBD48/301,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11U24FBD48/301, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11U24FBD48/301,?
LPC11U24FBD48/301, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11U24FBD48/301, 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 LPC11U24FBD48/301,?
For technical support, including LPC11U24FBD48/301, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11U24FBD48/301, requirements.
6.How does Aetrix verify that LPC11U24FBD48/301, is sourced from the original manufacturer or authorized distributors?
All LPC11U24FBD48/301, 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 LPC11U24FBD48/301, meets industry standards.
7.What is the process for return or replacement of LPC11U24FBD48/301,?
All LPC11U24FBD48/301, units undergo pre-shipment inspection (PSI). If there is an issue with LPC11U24FBD48/301,, 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 LPC11U24FBD48/301, part is unused and in its original packaging.
Return procedure for LPC11U24FBD48/301,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11U24FBD48/301, Tags
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