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NXP Semiconductors LPC11U12FBD48/201,
- Part No.:
- LPC11U12FBD48/201,
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC11U12FBD48/201,.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:216
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Product details
Overview
LPC11U12FBD48/201 from NXP Semiconductors is a 32-bit ARM Cortex-M0 microcontroller in LQFP48 package, operating at up to 50 MHz with 16 kB flash, 6 kB SRAM (4 kB main + 2 kB USB), and integrated Full-Speed USB 2.0 device controller. It delivers low-power operation across Sleep, Deep-sleep, Power-down, and Deep power-down modes and supports industrial control, USB audio devices, and handheld scanners.
For engineers reviewing the LPC11U12FBD48/201 datasheet, LPC11U12FBD48/201 pinout, LPC11U12FBD48/201 application, or LPC11U12FBD48/201 equivalent, key selection criteria include USB device controller integration, 10-bit ADC with 8-channel input multiplexing, dual SSP interfaces, I²C Fast-mode Plus support (1 Mbit/s), and 40 GPIO pins with programmable glitch filtering and high-current drive capability on select pins.
Technical Context
The LPC11U12FBD48/201 implements an ARM Cortex-M0 core with NVIC and NMI support, paired with a dedicated USB PLL and system PLL for independent clock domain management. Its memory subsystem includes 16 kB flash, 4 kB main SRAM, and 2 kB USB-dedicated SRAM - enabling concurrent USB stack execution without contention.
Digital peripherals are routed via configurable IOCON registers, supporting function multiplexing across 40 GPIO pins. The device integrates two SSP controllers with FIFOs, one I²C-bus interface compliant with Fast-mode Plus, one USART with RS-485/ISO 7816-3 smart card support, four general-purpose timers (two 32-bit, two 16-bit), and a Windowed WatchDog Timer with internal low-power oscillator.
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 code footprint vs. 8/16-bit MCUs. |
| Memory | 16 kB flash / 6 kB SRAM (4 kB + 2 kB USB) - sufficient for USB HID/audio firmware with buffer space for descriptor handling and endpoint FIFOs. |
| USB Interface | Full-Speed USB 2.0 device controller - supports HID, CDC, and MSC classes without external PHY; includes USB_VBUS detection and SoftConnect (USB_CONNECT pin). |
| Analog Input | 10-bit ADC, 8-channel multiplexed input - provides direct sensor interfacing with ±1 LSB INL/DNL, usable for battery monitoring or environmental sensing. |
| Digital I/O | 40 GPIO pins, 8 with programmable glitch filter, 1 high-current source (20 mA @ P0_7), 2 true open-drain (P0_4/P0_5) - supports robust I²C bus driving and noise-immune interrupt sourcing. |
| Power Modes | Four reduced-power modes including Deep power-down with wake-up via WAKEUP pin or USB activity - achieves sub-μA retention current for battery-powered applications. |
| Clock Sources | Crystal oscillator (1–25 MHz), 12 MHz IRC, dedicated USB PLL, and WatchDog Oscillator - allows flexible clock tree configuration with no external crystal required for basic USB operation. |
Pinout & Package
LQFP48 package: plastic low-profile quad flat package, 48 leads, 7 × 7 × 1.4 mm body, lead pitch 0.5 mm, RoHS-compliant.
| 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 data pair | Full-Speed USB 2.0 bidirectional signals; require 27 Ω series resistors and proper PCB layout per USB spec; not 5 V tolerant. |
| PIO0_4/SCL & PIO0_5/SDA | I²C-bus interface | Open-drain pins supporting Fast-mode Plus (1 Mbit/s); require external pull-ups; high-current sink enabled only when Fast-mode Plus selected in IOCON. |
| PIO0_16/AD5/CT32B1_MAT3/WAKEUP | ADC input / timer match / wake-up | Deep power-down wake-up pin with 50 ns pulse sensitivity; also serves as ADC channel 5 and 32-bit timer 1 match output 3. |
| PIO0_17/RTS/CT32B0_CAP0/SCLK | USART control / timer capture / sync clock | Configurable as RTS output, 32-bit timer 0 capture input, or synchronous serial clock for USART - enables hardware flow control or precise timing event capture. |
Key Features
| Feature | Design Value |
|---|---|
| USB Device Controller | Integrated Full-Speed USB 2.0 device controller with SoftConnect, USB_VBUS detection, and dedicated 2 kB SRAM - eliminates need for external USB PHY and simplifies BOM for USB-peripheral designs. |
| Power Management Unit (PMU) | Hardware-managed Sleep, Deep-sleep, Power-down, and Deep power-down modes with wake-up via GPIO, watchdog, or USB - reduces active current to ~100 μA and Deep power-down current to <1 μA. |
| Peripheral Multiplexing | All digital peripherals (SSP, USART, timers, ADC) assigned via IOCON register programming - enables flexible pin assignment without hardware redesign; default JTAG/SWD functions pre-enabled. |
| ADC with Analog Input Flexibility | 10-bit SAR ADC with 8-channel input multiplexing and dedicated analog input pins (AD0–AD7) - supports simultaneous sampling of multiple sensors with minimal external circuitry. |
| High-Current GPIO Drivers | P0_7 supports 20 mA source drive; P0_4 and P0_5 support 20 mA sink in open-drain mode - directly drives LEDs, small relays, or I²C bus loads without external buffers. |
Applications
| Industrial Control | USB Audio Devices |
|---|---|
Use Scenario: Compact programmable logic controller (PLC) module with local I/O expansion and USB-based configuration interface. IC Role / Device Role / Timing Role: Main MCU executing ladder logic, managing RS-485 fieldbus communication, and hosting USB CDC ACM for PC-based HMI updates. Use Value: Integrated USB device controller and RS-485-capable USART eliminate external transceivers; 40 GPIO enable direct connection to discrete I/O points. | Use Scenario: Low-latency USB headset with microphone input, volume control, and LED status indicators. IC Role / Device Role / Timing Role: USB audio class (UAC) device controller handling isochronous audio streaming, ADC sampling, and GPIO-driven LED feedback. Use Value: Dedicated USB PLL ensures jitter-free audio clocking; 10-bit ADC digitizes analog mic signal; high-current GPIO drives status LEDs directly. |
| Handheld Scanners | Medical Sensors |
Use Scenario: Battery-powered barcode scanner with laser trigger, decode engine, and USB mass storage emulation for firmware updates. IC Role / Device Role / Timing Role: Real-time decoder host with USB MSC interface, managing laser driver timing, button interrupts, and battery voltage monitoring via ADC. Use Value: Deep power-down mode extends battery life between scans; 40 GPIO support matrix keypad and status LEDs; USB MSC simplifies field firmware upgrades. | Use Scenario: Portable pulse oximeter with analog front-end, OLED display interface, and USB data export to clinical software. IC Role / Device Role / Timing Role: Signal acquisition MCU performing ADC sampling of photodiode outputs, calculating SpO₂, and transmitting results via USB HID. Use Value: 10-bit ADC resolution meets clinical accuracy requirements; USB device controller enables plug-and-play connectivity without drivers on modern OSes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC11U14FBD48/201 | 32 kB flash (vs. 16 kB), same 6 kB SRAM, identical peripherals and pinout | Suitable for larger firmware images requiring bootloader, USB stack, and application logic in flash | Select when firmware size exceeds 16 kB or future-proofing for feature expansion is required; drop-in compatible with no PCB changes. |
| STM32F042F4P6 | ARM Cortex-M0, 48 MHz, 16 kB flash, 6 kB SRAM, USB 2.0 FS device, but no RS-485 USART or I²C Fast-mode Plus | Better suited for pure USB HID or CDC applications without industrial bus requirements | Choose if RS-485 or 1 Mbit/s I²C is unnecessary and ST's ecosystem/toolchain preference applies; requires layout review due to different pin mapping. |
Compared with LPC11U14FBD48/201, the LPC11U12FBD48/201 trades flash capacity for cost-sensitive deployment, while STM32F042F4P6 offers comparable USB functionality but lacks native RS-485 and Fast-mode Plus I²C - making LPC11U12FBD48/201 optimal for industrial USB peripherals needing robust serial bus support.
Availability
LPC11U12FBD48/201 is available at Aetrix Electronics and suitable for industrial control, USB audio devices, and handheld scanners requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant LQFP packaging.
Supply support for LPC11U12FBD48/201 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 LPC11U1x product line was designed specifically for cost-sensitive, USB-connected embedded applications requiring low power, compact code size, and seamless integration of USB device functionality - targeting consumer peripherals, medical sensors, and industrial edge nodes.
FAQ
What is the maximum CPU frequency supported by the LPC11U12FBD48/201?
The LPC11U12FBD48/201 supports a maximum CPU frequency of 50 MHz, achievable using either the internal 12 MHz IRC oscillator with PLL multiplication or an external crystal oscillator (1–25 MHz) as the system clock source. This frequency is maintained across all operating voltage ranges (1.8 V to 3.6 V) and ambient temperatures (−40 °C to +85 °C), as verified in the official NXP datasheet Rev. 2.2.
Does the LPC11U12FBD48/201 include dedicated SRAM for USB operations?
Yes, the LPC11U12FBD48/201 allocates 2 kB of its total 6 kB SRAM specifically for USB operations. This dedicated USB SRAM is physically separate from the 4 kB main SRAM and is used exclusively by the USB device controller for endpoint buffers, descriptor tables, and control transfers - ensuring deterministic USB performance without contention with application code.
Can the LPC11U12FBD48/201 operate without an external crystal oscillator?
Yes, the LPC11U12FBD48/201 can operate without an external crystal oscillator by using its internal 12 MHz IRC oscillator as the system clock source. The IRC is factory-trimmed to ±1 % accuracy and supports full USB functionality when paired with the dedicated USB PLL. XTALIN and XTALOUT pins may be left floating or grounded (XTALIN preferred grounded) in this configuration.
How many GPIO pins on the LPC11U12FBD48/201 support programmable glitch filtering?
Eight GPIO pins on the LPC11U12FBD48/201 support programmable glitch filtering: PIO0_11 through PIO0_14, PIO0_15, PIO0_16, PIO0_22, and PIO0_23. This feature is implemented in hardware and configured via the SYSCON register, enabling reliable debouncing of mechanical switches or noisy industrial inputs without CPU overhead.
Is the LPC11U12FBD48/201 pin-compatible with other members of the LPC11U1x family?
Yes, the LPC11U12FBD48/201 in LQFP48 package is pin-compatible with LPC11U13FBD48/201 and LPC11U14FBD48/201. All share identical pin assignments, electrical characteristics, and peripheral mappings - allowing hardware reuse across variants differentiated only by flash size (16/24/32 kB) and minor feature sets, as confirmed in NXP's ordering information table and pin description section.
LPC11U12FBD48/201, 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, SmartCard, SPI, SSP, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, POR, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K 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:
LPC11U12FBD48/201, FAQ
1.How can I place an order for LPC11U12FBD48/201, through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC11U12FBD48/201, 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 LPC11U12FBD48/201, reliable?
The price and inventory of LPC11U12FBD48/201, are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC11U12FBD48/201, is usually 5 days.
3.What payment methods are accepted for LPC11U12FBD48/201,?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC11U12FBD48/201, transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC11U12FBD48/201,?
LPC11U12FBD48/201, orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC11U12FBD48/201, 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 LPC11U12FBD48/201,?
For technical support, including LPC11U12FBD48/201, datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC11U12FBD48/201, requirements.
6.How does Aetrix verify that LPC11U12FBD48/201, is sourced from the original manufacturer or authorized distributors?
All LPC11U12FBD48/201, 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 LPC11U12FBD48/201, meets industry standards.
7.What is the process for return or replacement of LPC11U12FBD48/201,?
All LPC11U12FBD48/201, units undergo pre-shipment inspection (PSI). If there is an issue with LPC11U12FBD48/201,, 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 LPC11U12FBD48/201, part is unused and in its original packaging.
Return procedure for LPC11U12FBD48/201,:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC11U12FBD48/201, Tags
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ATTINY4-TSHR
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ATTINY402-SSNR
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PIC16F15213T-I/MF
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