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Date: 17th Apr 2011

New ARM Cortex-M0 based MCUs from NXP with USB and smart card interface

NXP Semiconductors N.V. has announced a new low-cost ARM Cortex-M0 based microcontroller supporting USB architecture and smart card interface. With a USB 2.0 device controller, the new LPC11U00 targets consumer electronics and mobile devices.

"The LPC11U00 series provides a compelling replacement for 8- and 16-bit USB microcontrollers, delivering robust USB performance at a sub-dollar price point. The highly flexible USB architecture we're introducing in the LPC11U00 is quite simply a better approach to USB," said Geoff Lees, vice president and general manager, microcontroller product line, NXP Semiconductors. "NXP now offers the widest range of ARM-based USB solutions, as well as easy-to-use software and integrated development platforms that make NXP a one-stop shop for USB."

The LPC11U00 provides up to 10 configurable physical endpoints with flexible user defined buffer architecture management, faster post-processing of USB data, and robust asynchronous USB operation. Endpoint buffers in the LPC11U00 do not reside within the USB domain but reside in system SRAM space, giving the CPU direct access to USB packets. Unused endpoint buffer space is not wasted and can be fully utilized by reallocating it as system SRAM. This feature is especially suited for protocol converters such as UART-to-USB and SPI-to-USB bridges where data needs to be quickly transferred between serial interfaces.

With the LPC11U00 USB architecture, each non-control endpoint can be configured for either bulk, interrupt or isochronous, and can be double-buffered with maximum packet sizes of 1023 bytes. Further, the flexible clocking architecture supported by a dedicated USB PLL enables asynchronous USB operation, with the CPU and USB operating independently at maximum speeds.

The LPC11U00 series delivers up to 32KB Flash, 6KB SRAM, a variety of serial interfaces, a smart card interface, 4 system timers with PWM functionality, 8 channel 10-bit ADC and up to 40 GPIOs. The LPC11U00 series is offered in small 4.5 x 4.5 mm TFGBGA48 package.

Connectivity options on the LPC11U00 series include two Synchronous Serial Port (SSP) interfaces, I2C with Fast-mode Plus feature with 10x higher bus-drive capability, a Universal Synchronous-Asynchronous Receiver/Transmitter (USART), and a Smart Card interface. The Smart Card interface (ISO7816-3) provides a plug-and-play interface for smart cards, making the LPC11U00 a good fit for e-commerce applications.

To boost functionality, various design enhancements have been implemented on simple peripherals. For example, the General-Purpose I/O (GPIO) can now be configured as groups with interrupt capability on programmable patterns - a key requirement for applications driven by user input. The LPC11U00 series also offers on-chip power profiles, driven by an Application Programming Interface (API) which can be customized for any low-power application, so that designers can achieve ideal power levels with minimal application intervention.

NXP offers royalty-free USB driver software helping in reduction of development costs. The LPC11U00 also offer USB Implementers Forum (USB-IF) certification so that designs comply with the USB specification and are interoperable with existing USB solutions.

Availability: The LPC11U00 series offers three devices: LPC11U12 (16K Flash), LPC11U13 (24K Flash) and LPC11U14 (32K Flash). These devices are currently sampling to lead customers and will be available from distribution worldwide in May 2011. Additional family members offering higher memory and package configurations will be available in the second half of the year. Further information on the LPC11U00 series is available at: http://www.nxp.com/products/microcontrollers/cortex_m0/lpc11u00

Information on NXP's portfolio of Cortex-M0 microcontrollers is available at: www.nxp.com/cortex-m0

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