Two ARMs, Two ARMs

April 5, 2007
Actually that is two ARM high-speed buses (AHB) that are found in NXP’s new LPC2478 and LPC2470 microcontrollers. These ARM7-based solutions balance high performance peripherals with multiple buses allowing the processor and DMA to operate concurrently.

Actually that is two ARM high-speed buses (AHB) that are found in NXP’s new LPC2478 and LPC2470 microcontrollers (Fig. 1). These ARM7-based solutions balance high performance peripherals with multiple buses allowing the processor and DMA to operate concurrently.

The chips also include an interesting set of peripherals such as integrated LCD support. It can handle static LCD displays up to 1024 by 768 pixels gray-scale or 24-bits/pixel color TFT panels. Other peripherals include 10/100 Ethernet, USB host/OTG/device, and two CAN channels. This combination makes it ideal for interactive applications such as mobile phones or point-of-sale systems. Other peripherals include four UARTs, three I2C buses, two-input and two-output I2S ports, SPI, SSP, RTC, ADC/DAC, SD/MMC card interface, external interfaces to SRAM, SDRAM and NOR Flash.

The 128-bit wide embedded flash incorporates error correction and is available in capacities up to 512Kbytes. There is also a battery backed up 2Kbytes of RAM with a real-time clock (RTC).

Pricing for the 208 TFBGA and LQFP packages range from $5.45 to $8.99.

For more information, visit www.nxp.com.

About the Author

William G. Wong | Senior Content Director - Electronic Design and Microwaves & RF

I am Editor of Electronic Design focusing on embedded, software, and systems. As Senior Content Director, I also manage Microwaves & RF and I work with a great team of editors to provide engineers, programmers, developers and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.

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I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.  

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