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NXP Semiconductors LPC11U24FBD64/401,
- Part No.:
- LPC11U24FBD64/401,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC11U24FBD64/401,.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:327
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Product details
Overview
LPC11U24FBD64/401 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller operating at up to 50 MHz, featuring 32 kB flash, 8 kB SRAM, 4 kB EEPROM, full-speed USB 2.0 device controller, 10-bit ADC with 8-channel input multiplexing, and up to 54 GPIO pins in LQFP64 package. It targets USB-connected embedded control applications such as industrial USB peripherals and medical data loggers.
For engineers reviewing the LPC11U24FBD64/401 datasheet, LPC11U24FBD64/401 pinout, LPC11U24FBD64/401 application, or LPC11U24FBD64/401 equivalent, key selection criteria include USB device stack support in ROM, 4 kB byte-erasable EEPROM for configuration storage, 54 GPIO with configurable pull-up/pull-down and interrupt grouping, and dual PLL architecture (one dedicated to USB) enabling stable 48 MHz USB clock generation independent of system clock source.
Technical Context
The LPC11U24FBD64/401 implements an ARM Cortex-M0 core with NVIC and NMI support, paired with a dedicated USB PLL and main system PLL-enabling simultaneous 50 MHz CPU operation and precise 48 MHz USB clocking. Its memory subsystem includes 32 kB flash with ISP/IAP, 8 kB SRAM, and 4 kB EEPROM with byte-level erasability.
Digital peripherals include two SSP controllers with FIFOs, one Fast-mode Plus I²C-bus interface (1 Mbit/s), one RS-485/ISO 7816 USART with fractional baud rate generation, four counter/timers (two 32-bit, two 16-bit), and programmable Windowed Watchdog Timer with internal low-power oscillator. Analog capability is limited to a single 10-bit ADC with eight input channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz operation - enables efficient execution of real-time control and USB protocol stacks without external co-processor. |
| Memory | 32 kB flash / 8 kB SRAM / 4 kB EEPROM - sufficient for standalone USB HID firmware, sensor data buffering, and persistent device configuration storage. |
| USB Interface | Full-speed USB 2.0 device controller with ROM-based drivers - eliminates need for external USB PHY and reduces BOM cost; supports Flash updates via USB. |
| ADC | 10-bit SAR ADC with 8 input channels - provides adequate resolution for analog sensor interfacing (e.g., temperature, voltage monitoring) in industrial and medical edge nodes. |
| GPIO | Up to 54 general-purpose I/O pins in LQFP64 package - supports complex peripheral expansion, multi-signal monitoring, and flexible board layout with configurable pull-up/pull-down and interrupt grouping. |
| Timers | Four timers: two 32-bit + two 16-bit, with total of 5 capture inputs and 13 match outputs - enables precise PWM generation, input capture for encoder signals, and multi-channel timing control. |
| Power Modes | Sleep, Deep-sleep, Power-down, Deep power-down - allows sub-μA standby current; wake-up from Deep power-down via dedicated WAKEUP pin (PIO0_16) with 50 ns pulse detection. |
Pinout & Package
Package: LQFP64 (plastic low profile quad flat package; 64 leads; body 10 × 10 × 1.4 mm; SOT314-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO | External reset with 20 ns glitch filter; also serves 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 specification rev 2.0; not 5 V tolerant; require series 27 Ω resistors and proper PCB routing for EMI control. |
| XTALIN / XTALOUT | Clock crystal interface | Supports 1–25 MHz crystal oscillator; XTALIN accepts ≤1.8 V input; XTALOUT drives external crystal; unused pins must be grounded (XTALIN) or left floating (XTALOUT). |
| PIO0_16/AD5/CT32B1_MAT3/WAKEUP | Multi-function GPIO | In Deep power-down mode, functions exclusively as WAKEUP pin with 50 ns pulse detection; also serves as ADC input 5 and timer match output. |
| VDD / VSS | Power supply rails | Single 3.3 V supply (1.8–3.6 V range); VDD also acts as ADC reference voltage; multiple VDD/VSS pins ensure low-impedance power distribution across LQFP64 footprint. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based USB drivers | Reduces firmware size and boot time; enables certified USB enumeration without external driver dependencies or flash-resident stack overhead. |
| Byte-erasable EEPROM | Enables field-upgradable calibration data, device serial numbers, or user preferences without block-erase wear on flash memory. |
| Dual PLL architecture | Separate USB PLL ensures accurate 48 MHz clock regardless of system oscillator drift or IRC variation - critical for USB compliance and jitter-sensitive audio endpoints. |
| GPIO interrupt grouping | Two GPIO grouped interrupt modules allow software-defined pattern-matching on up to 8 pins per group - simplifies wake-on-event logic for battery-powered sensors. |
| High-current GPIO drivers | 20 mA source/sink capability on designated pins (e.g., PIO0_7) enables direct LED driving or relay control without external buffers. |
Applications
| USB Audio Adapters | Industrial USB Data Loggers |
|---|---|
Use Scenario: Compact USB-to-analog audio interface for PC-connected headsets or microphone preamps. IC Role / Device Role / Timing Role: USB device controller handles HID/class-compliant audio streaming; 10-bit ADC digitizes analog mic input; GPIOs manage mute/LED status. Use Value: ROM-based USB stack eliminates external USB PHY and reduces firmware development effort; 4 kB EEPROM stores device descriptors and vendor IDs. | Use Scenario: Standalone environmental monitor logging temperature, humidity, and voltage over USB to host PC. IC Role / Device Role / Timing Role: MCU reads sensors via ADC and I²C, stores timestamps in SRAM, and transfers batches via USB bulk transfer upon host request. Use Value: Dual PLL ensures stable USB timing during variable CPU load; Deep power-down mode extends battery life between sampling intervals. |
| Medical Diagnostic Handhelds | RS-485 USB Gateways |
Use Scenario: Portable pulse oximeter or blood glucose meter with USB configuration and firmware update capability. IC Role / Device Role / Timing Role: Manages optical sensor interface, performs signal processing, and presents as USB CDC device for clinical software communication. Use Value: 32 kB flash accommodates safety-certified bootloader and application; 4 kB EEPROM retains calibration coefficients and usage logs across power cycles. | Use Scenario: Protocol converter bridging legacy RS-485 industrial equipment to modern USB-enabled SCADA systems. IC Role / Device Role / Timing Role: USART operates in RS-485 mode with automatic direction control; USB handles host command parsing and data forwarding. Use Value: Hardware-supported RS-485 transceiver control (via RTS/CTS) minimizes software latency; 54 GPIO allow isolation circuitry and status LED management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11U37FBD64/401 | Same core, 64 kB flash, 12 kB SRAM, 4 kB EEPROM, identical USB/ADC/peripheral set; larger flash enables complex USB composite devices. | Targeted at USB mass storage or multi-interface devices requiring >32 kB application code space. | Select when firmware complexity exceeds 32 kB flash capacity but same LQFP64 footprint and peripheral compatibility are required. |
| STM32F072RBT6 | ARM Cortex-M0, 128 kB flash, 16 kB SRAM, USB 2.0 FS, 12-bit ADC (19 ch), no EEPROM; requires external EEPROM for persistent config storage. | Better suited for high-channel-count sensor fusion or USB HID with large descriptor sets; lacks integrated EEPROM. | Choose when higher ADC resolution, more SRAM, or larger flash is prioritized over on-chip EEPROM and lower BOM count. |
Compared with LPC11U37FBD64/401, the LPC11U24FBD64/401 offers reduced flash/SRAM but maintains identical USB timing architecture and EEPROM retention-making it optimal for cost-sensitive, fixed-function USB peripherals. Against STM32F072RBT6, it trades ADC resolution and memory size for guaranteed EEPROM persistence and simpler USB integration via ROM drivers.
Availability
LPC11U24FBD64/401 is available at Aetrix Electronics and suitable for industrial USB gateways, medical handheld diagnostics, and consumer peripheral designs requiring stable component supply, long-term lifecycle support, and consistent USB device certification.
Supply support for LPC11U24FBD64/401 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 LPC11U2x product line was designed specifically for cost-sensitive, USB-connected embedded applications where low power, small footprint, and integrated USB device functionality reduce system complexity and bill-of-materials cost.
FAQ
What USB speed and device classes does the LPC11U24FBD64/401 support?
The LPC11U24FBD64/401 supports Full-Speed USB 2.0 (12 Mbps) as a device only-not host or OTG. It includes ROM-based drivers for CDC, HID, and MSC classes, enabling plug-and-play operation on Windows, macOS, and Linux without custom driver installation. The LPC11U24FBD64/401 USB controller complies with USB-IF certification requirements when implemented with proper termination and layout per NXP AN10887.
Does the LPC11U24FBD64/401 include hardware support for USB suspend/resume?
Yes, the LPC11U24FBD64/401 implements full USB suspend/resume signaling per USB 2.0 specification. Its PMU automatically enters Sleep mode during USB suspend and wakes on resume or remote wakeup request. The LPC11U24FBD64/401 firmware can configure remote wakeup capability and respond to bus-reset events without external intervention.
How is the 4 kB EEPROM organized and accessed in the LPC11U24FBD64/401?
The 4 kB EEPROM in the LPC11U24FBD64/401 is organized as 4096 bytes, fully byte-erasable and byte-programmable via IAP calls from firmware. It resides in a separate memory region mapped at 0x0000E000 and is accessed using ROM API functions-no special voltage programming or erase cycles required. The LPC11U24FBD64/401 EEPROM endurance is rated for 100,000 write/erase cycles per byte.
Can the LPC11U24FBD64/401 operate without an external crystal?
Yes, the LPC11U24FBD64/401 can operate using its internal 12 MHz IRC oscillator as the system clock source. The IRC is factory-trimmed to ±1 % accuracy and supports USB operation when paired with the dedicated USB PLL. External crystal is optional and only required for applications needing tighter clock stability (e.g., synchronous serial interfaces or precise timing-critical ADC sampling).
What debug interfaces are supported by the LPC11U24FBD64/401?
The LPC11U24FBD64/401 supports both Serial Wire Debug (SWD) and standard JTAG interfaces. SWD uses SWCLK and SWDIO pins (PIO0_10 and PIO0_15) and is the recommended interface for minimal pin count and energy-efficient debugging. JTAG is available via TDI, TDO, TMS, TRST, and TCK (PIO0_11, PIO0_13, PIO0_12, PIO0_14, PIO0_10) for boundary scan testing and legacy tool compatibility.
LPC11U24FBD64/401, Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-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:
- 54
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 10K 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:
LPC11U24FBD64/401, FAQ
1.How can I place an order for LPC11U24FBD64/401, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11U24FBD64/401, 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 LPC11U24FBD64/401, reliable?
The price and inventory of LPC11U24FBD64/401, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11U24FBD64/401, is usually 5 days.
3.What payment methods are accepted for LPC11U24FBD64/401,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11U24FBD64/401, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11U24FBD64/401,?
LPC11U24FBD64/401, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11U24FBD64/401, 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 LPC11U24FBD64/401,?
For technical support, including LPC11U24FBD64/401, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11U24FBD64/401, requirements.
6.How does Aetrix verify that LPC11U24FBD64/401, is sourced from the original manufacturer or authorized distributors?
All LPC11U24FBD64/401, 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 LPC11U24FBD64/401, meets industry standards.
7.What is the process for return or replacement of LPC11U24FBD64/401,?
All LPC11U24FBD64/401, units undergo pre-shipment inspection (PSI). If there is an issue with LPC11U24FBD64/401,, 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 LPC11U24FBD64/401, part is unused and in its original packaging.
Return procedure for LPC11U24FBD64/401,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11U24FBD64/401, Tags
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ATTINY4-TSHR
Microchip Technology
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ATTINY10-TSHR
Microchip Technology
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ATTINY10-TS8R
Microchip Technology
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ATTINY202-SSNR
Microchip Technology
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ATTINY202-SSFR
Microchip Technology
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ATTINY402-SSNR
Microchip Technology
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PIC16F15213T-I/MF
Microchip Technology
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PIC16F15213-E/MF
Microchip Technology
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PIC10F200T-I/OT
Microchip Technology
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ATTINY412-SSNR
Microchip Technology
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PIC10F202T-I/OT
Microchip Technology
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ATTINY404-SSNR
Microchip Technology
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