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ARM9 MCU provides advanced system-level solution

Posted: 25 Sep 2007     Print Version  Bookmark and Share

Keywords:microcontroller  ARM9 MCU  high-performance application 

NXP Semiconductors has expanded its portfolio of ARM7 and ARM9 microcontroller space with the introduction of the LPC2900 series that provide designers with a cost-effective, flexible low-power solution for industrial, medical, motor control and automotive applications.

With its latest offering, the company adds three ARM9 MCUs—LPC2919, LPC2917 and LPC2915—bringing its portfolio to over 50 ARM technology-based MCUs.

The devices are based on 80MHz ARM968E-S MCUs with two CAN controllers and two LIN controllers, providing connectivity and gateway options that are ideally suited for applications such as industrial automation and in-vehicle networking. Built around an ARM968E-S processor core, the LPC2900 is optimised for increased performance. With the help of an on-chip power management unit, the LPC2900 can also consume power more efficiently for low power applications. Peripherals such as high-speed pulse width modulator (PWM) and UARTs can be clocked independently at different clock rates to provide further flexibility in minimising power consumption.

In addition, the LPC2900 features dual CAN interfaces and two LIN masters, standard serial buses, plus a sophisticated PWM and two ADCs making its suitable for high-performance and communication-heavy applications such as motor control, CAN gateways, programmable logic controller, industrial networking, in-car entertainment, navigation and comfort.

With a simplified design, the three devices offer consistent peripherals and code compatibility. The LPC29]17 and LPC2919 have 32bit external memory controllers that support static memory devices, including RAM, ROM, Flash, burst ROM, and external I/O devices. The system can also support up to 768Kbyte of on-chip flash and 80Kbyte SRAM. The 128bit wide flash provides the high performance accessing four words each fetch. The SRAM is subdivided into a 16Kbyte tightly coupled memory (TCM) for data and 16 KB TCM for code as well as 48 KB general-purpose SRAM. Integrated CAN 2.0B controllers offer FullCAN mode for message reception, triple transmit buffers with automatic priority scheduling, and extensive global CAN-acceptance filtering for high-performance gateway functionality. For compatibility with existing tools, each device uses the standard ARM test/debug JTAG interface.

"Growth in 32-bit ARM technology-based microcontrollers is now steadily outpacing the growth of other proprietary architectures. The LPC2900 MCUs promises to continue NXP's market lead and strategically complement our LPC2000 and LPC3000 product lines to provide our customers with the broadest ARM MCU offering in the industry," said Geoff Lees, general manager, MCU product line, NXP. "The LPC2900 family provides an advanced system-level solution ideally suited to complement our ARM7TDMI and ARM926EJ processor-based products with MCUs based on the ARM968E-S."

The NXP LPC2900 family of MCUs is available in 144-pin LQFP and 100-pin LQFP.




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