USB MCUs configured for demanding applications

USB MCUs configured for demanding applications

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By eeNews Europe

LPC11U6x is intended as a family of easy-to-use, USB-IF certified USB microcontrollers, with a more energy-efficient ARM Cortex-M0+ processor, significantly more flash and SRAM, more serial communications, a new 2-Msample/sec ADC and more versatile timers.

These additional features allow the LPC11U6x to tackle a wider range of applications in consumer, commercial and industrial markets such as metering and data collection, wired and wireless routing, handheld medical equipment, and PC/gaming accessories, among others.

The LPC11U6x family includes a USB device controller certified by the USB Implementers Forum (USB-IF) and gives designers access to USB software, tools and shortcuts. Embedding the USB drivers in ROM cuts design time and shrinks application program footprint while increasing reliability, while an on-chip PHY reduces the solution BOM and design complexity. NXP provides a royalty-free USB device driver stack, extensive example code for popular device classes, and a free PID/VID program which make USB development easy for designers with any level of USB expertise.

To support more demanding data and buffering requirements, as well as larger application code sizes, the LPC11U6x extends memory options by doubling flash to 256 kB and tripling SRAM to 36 kB. More rigorous I/O requirements are supported by expanded serial connectivity, including five USARTs, two I2Cs, 2 SPIs, and up to 80 GPIOs, along with a 12-channel, 12-bit, 2-Msps ADC for higher bandwidth and higher-precision input. New to the LPC11Uxx Series, the LPC11U6x uses an ARM Cortex-M0+ core for power efficiency.

LPC11U6x MCUs also include both standard and configurable timers/PWMs for advanced timing requirements. Higher operating temperatures (up to 105 ºC) make them suitable for more industrial environments.

Features inlcude;

USB 2.0 device (12 Mbps, formerly called Full Speed USB) with on-chip USB PHY and integrated ROM drivers including Human Interface Device Class (HID), Mass Storage Device Class (MSC), and Communication Device Class (CDC)

ARM Cortex-M0+ processor, up to 50 MHz


Timers: 2 SCT/PWMs, 2 16-bit timers, 2 32-bit timers

Low power features: RTC, low power modes, power profiles

Packages: LQFP48, LQFP64, LQFP100

LPC11U6x is fully supported by the LPC software ecosystem and an extensive collection of tools, drivers and middleware. Free to all LPC11Uxx developers, the NXP LPCXpresso development platform includes a full featured C/C++ IDE and LPCOpen firmware libraries complemented by low-cost target boards with on-board debug probes. LPCOpen incorporates device drivers, stacks, and graphics libraries that enable rapid code development and can be used with a wide range of third-party RTOSs, middleware solutions, and popular third-party ARM development tools including Keil and IAR. LPC11U6x is software- and tool-compatible with existing LPC11U/Exx and LPC134x parts. Devices cost from $2.16 (10,000). Development boards for the LPC11U6X family are also available immediately through NXP-authorised distributors.


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