My Inquiry
My Account
NXP Semiconductors LPC11U24FHI33/301Y
- Part No.:
- LPC11U24FHI33/301Y
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
LPC11U24FHI33/301Y.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 33HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,228
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LPC11U24FHI33/301 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller optimized for USB-enabled embedded control, operating at up to 50 MHz with 32 kB flash, 6 kB SRAM, 2 kB EEPROM, and full-speed USB 2.0 device controller. It integrates a 10-bit ADC (8-channel), two SSP interfaces, I²C-bus Fast-mode Plus (1 Mbit/s), and USART with RS-485/smart card support - deployed in handheld scanners and USB audio devices.
For engineers reviewing the LPC11U24FHI33/301 datasheet, LPC11U24FHI33/301 pinout, LPC11U24FHI33/301 application, or LPC11U24FHI33/301 equivalent, key selection criteria include HVQFN33 package footprint, USB device stack support in ROM, 26 GPIO count, deep power-down wake-up via PIO0_16, and compatibility with NXP's LPCXpresso toolchain and CMSIS drivers.
Technical Context
The LPC11U24FHI33/301 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 USB PLL for precise 48 MHz timing. Its memory subsystem includes boot ROM with USB API and integer division routines, enabling firmware updates over USB without external host software.
Digital peripherals are routed through configurable IOCON registers supporting pull-up/pull-down, repeater, and open-drain modes on all GPIO. The 10-bit ADC supports 8 analog inputs with programmable sampling, while the USB controller operates in full-speed mode only and requires no external PHY - validated for HID, CDC, and MSC class implementations per NXP UM10462.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0, 32-bit RISC, up to 50 MHz - enables deterministic real-time control with Thumb-2 instruction set and low code footprint vs. 8/16-bit MCUs. |
| Memory | 32 kB flash / 6 kB SRAM / 2 kB EEPROM - sufficient for USB device firmware with persistent configuration storage and runtime data buffering. |
| USB Interface | Full-speed USB 2.0 device controller with ROM-based drivers - eliminates need for external USB stack licensing and reduces BOM cost. |
| Analog Input | 10-bit ADC with 8 multiplexed channels (AD0–AD7) - supports sensor monitoring and calibration in medical and industrial peripherals. |
| Digital I/O | 26 GPIO pins in HVQFN33 package, 5 V tolerant, with configurable pull-up/pull-down and glitch filtering - simplifies level-shifting and noise immunity in mixed-voltage systems. |
| Power Modes | Deep power-down mode with wake-up via PIO0_16 (20 ns glitch filter) - achieves sub-μA standby current for battery-powered USB devices. |
| Clock Sources | Crystal oscillator (1–25 MHz), 12 MHz IRC, dedicated watchdog oscillator, and dual PLLs - provides flexible clock tree for USB timing compliance and low-power operation. |
Pinout & Package
HVQFN33 (5 × 5 × 0.85 mm, no leads, 33 terminals) - thermally enhanced, fine-pitch package optimized for space-constrained USB peripherals and handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET/PIO0_0 | Reset input / GPIO | Active-low reset with 20 ns glitch filter; doubles as debug select (JTAG/SWD) and general-purpose I/O. |
| USB_DP / USB_DM | USB differential pair | Full-speed USB 2.0 D+ and D− signals - require 27 Ω series resistors and proper PCB length matching per USB spec. |
| PIO0_16/AD5/CT32B1_MAT3/WAKEUP | Multi-function pin | Wakes device from Deep power-down mode; also serves as ADC input 5 and match output for 32-bit timer 1. |
| XTALIN / XTALOUT | Crytal oscillator interface | Supports 1–25 MHz crystal; XTALIN accepts ≤1.8 V input - must be grounded if internal IRC used exclusively. |
| VDD / VSS | Power supply | Single 3.3 V supply (1.8–3.6 V range); VDD also acts as ADC reference voltage - requires local 100 nF decoupling per supply pin. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-based USB stack | Enables certified USB device operation (HID/CDC/MSC) without external firmware or license fees - reduces development time by ≥3 weeks. |
| Byte-erasable EEPROM | 2 kB on-chip EEPROM supports field-updatable calibration data and device identity storage - eliminates need for external serial EEPROM. |
| Configurable GPIO | All 26 pins support pull-up/pull-down, hysteresis, repeater, and open-drain modes - allows direct interfacing with I²C, RS-485, and legacy logic without discrete components. |
| Dual PLL architecture | Dedicated USB PLL ensures stable 48 MHz clock independent of system oscillator drift - meets USB full-speed timing jitter requirements (<±0.25% deviation). |
| Power management unit (PMU) | Four low-power modes (Sleep, Deep-sleep, Power-down, Deep power-down) with wake-up sources including USB activity and GPIO - extends battery life in portable USB devices. |
Applications
| Handheld Scanners | USB Audio Devices |
|---|---|
Use Scenario: Battery-powered barcode scanner with USB-CDC interface for PC connectivity and firmware updates. IC Role / Device Role / Timing Role: Main MCU executing scan engine control, image processing pipeline, and USB CDC class enumeration. Use Value: ROM-based USB drivers and 2 kB EEPROM enable secure, field-upgradable firmware without external memory - reducing bill-of-materials and qualification effort. |
Use Scenario: Plug-and-play USB headset with analog microphone input, volume control, and LED status indicators. IC Role / Device Role / Timing Role: USB audio class (UAC1.0) device controller managing isochronous audio streaming and HID volume controls. Use Value: Integrated 10-bit ADC (for mic bias sensing) and 26 GPIO (for button/LED control) eliminate external ADC and I/O expanders - shrinking PCB area by ≥15%. |
| Medical Peripherals | Industrial Control Interfaces |
Use Scenario: Portable pulse oximeter with optical sensor interface, OLED display driver, and USB data export. IC Role / Device Role / Timing Role: Real-time sensor acquisition controller with synchronized ADC sampling and USB bulk transfer of waveform data. Use Value: Deep power-down mode with wake-up on PIO0_16 enables <1 μA standby current - extending single-cell Li-ion battery life to >6 months. |
Use Scenario: DIN-rail mounted USB-to-RS-485 converter for PLC communication gateways. IC Role / Device Role / Timing Role: Protocol bridge MCU handling UART-to-USB translation and RS-485 transceiver control (DE/RE signals). Use Value: Hardware USART with RS-485 direction control and fractional baud rate generator ensures ±0.1% timing accuracy across 1200–115.2 kbps - meeting IEC 61000-4-5 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11U35FHI33/501 | Same HVQFN33 package; 64 kB flash, 12 kB SRAM, 4 kB EEPROM, USB HS support in ROM - no additional USB PHY required. | Higher memory and USB HS capability suit complex HID + mass storage composite devices. | Select when firmware size exceeds 32 kB or USB high-speed throughput (>12 Mbps) is required. |
| STM32F072CBT6 | LQFP48 package (48-pin), 128 kB flash, 16 kB SRAM, USB FS device, but no on-chip EEPROM - requires external EEPROM for nonvolatile storage. | Better analog performance (12-bit ADC, 1.14 MSPS) and higher GPIO count (37) for sensor-rich designs. | Choose when ADC resolution/speed or GPIO density outweighs EEPROM integration and HVQFN33 footprint constraints. |
Compared with LPC11U35FHI33/501 and STM32F072CBT6, the LPC11U24FHI33/301 delivers optimal balance of USB integration, EEPROM persistence, and compact HVQFN33 packaging for cost-sensitive, space-constrained USB peripherals - without sacrificing ROM-based driver reliability or deep power-down efficiency.
Availability
LPC11U24FHI33/301 is available at Aetrix Electronics and suitable for handheld scanners, USB audio devices, and medical peripherals requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature (−40 °C to +85 °C).
Supply support for LPC11U24FHI33/301 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 applications, with core expertise in ARM-based microcontrollers and NFC/RFID technologies.
The LPC11U2x product line was designed specifically for USB-centric embedded control - integrating ROM-based USB stacks, low-power PMU, and robust analog peripherals to accelerate development of certified USB devices without external components.
FAQ
Does LPC11U24FHI33/301 support USB host functionality?
No. The LPC11U24FHI33/301 implements a USB 2.0 full-speed device controller only - it cannot act as a USB host. Host capability requires external USB OTG PHY or a different MCU family such as NXP's LPC17xx or LPC18xx series. The LPC11U24FHI33/301 USB controller is strictly device-side and relies on ROM-based drivers for CDC, HID, and MSC classes.
What is the maximum ADC sampling rate for LPC11U24FHI33/301?
The LPC11U24FHI33/301 10-bit ADC achieves up to 400 kS/s under optimal conditions (single-ended mode, no burst, minimal setup time). Actual sustained rate depends on clock configuration and conversion mode - typical design usage yields 200–300 kS/s with DMA-triggered sequences. This performance is documented in Section 13.5.4 of the LPC11U2x User Manual (UM10462).
Can LPC11U24FHI33/301 operate without an external crystal?
Yes. The LPC11U24FHI33/301 can run entirely from its internal 12 MHz IRC oscillator, which is factory-trimmed to ±1% accuracy. Crystal-free operation is supported for USB device mode using the IRC + USB PLL, though USB certification requires validation of ±0.25% clock tolerance - achievable with optional software trimming or external crystal for critical applications.
How many GPIO pins are available on the HVQFN33 package of LPC11U24FHI33/301?
The LPC11U24FHI33/301 in HVQFN33 package provides 26 general-purpose I/O pins, as confirmed in Table 2 of the datasheet. This count excludes power, ground, reset, and USB DP/DM pins. All 26 GPIOs support digital functions including interrupt generation, timer capture/match, and peripheral multiplexing - verified in the pin description table (Section 6.2).
Is there hardware support for AES or cryptographic acceleration in LPC11U24FHI33/301?
No. The LPC11U24FHI33/301 does not include dedicated cryptographic hardware such as AES engines, TRNG, or PKA accelerators. Security features are limited to unique device serial number and basic flash protection bits. For applications requiring hardware crypto, consider NXP's LPC54xxx or Kinetis E-series MCUs - the LPC11U24FHI33/301 relies on software-based encryption libraries.
LPC11U24FHI33/301Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- LPC11Uxx
- 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, Microwire, SPI, SSI, SSP, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 26
- 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:
LPC11U24FHI33/301Y FAQ
1.How can I place an order for LPC11U24FHI33/301Y through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11U24FHI33/301Y 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 LPC11U24FHI33/301Y reliable?
The price and inventory of LPC11U24FHI33/301Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11U24FHI33/301Y is usually 5 days.
3.What payment methods are accepted for LPC11U24FHI33/301Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11U24FHI33/301Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11U24FHI33/301Y?
LPC11U24FHI33/301Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11U24FHI33/301Y 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 LPC11U24FHI33/301Y?
For technical support, including LPC11U24FHI33/301Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11U24FHI33/301Y requirements.
6.How does Aetrix verify that LPC11U24FHI33/301Y is sourced from the original manufacturer or authorized distributors?
All LPC11U24FHI33/301Y 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 LPC11U24FHI33/301Y meets industry standards.
7.What is the process for return or replacement of LPC11U24FHI33/301Y?
All LPC11U24FHI33/301Y units undergo pre-shipment inspection (PSI). If there is an issue with LPC11U24FHI33/301Y, 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 LPC11U24FHI33/301Y part is unused and in its original packaging.
Return procedure for LPC11U24FHI33/301Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11U24FHI33/301Y 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…
