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ARM9 MCUs with up to 256-KB SRAM, Ethernet, USB, and LCD controller

Built around a 90 nm, 266 MHz ARM926EJ-S CPU core and a Vector Floating Point (VFP) coprocessor, the NXP LPC3200 family is designed for applications that require high performance, high integration, and low power consumption. The VFP coprocessor increases the speed of typical calculations by a factor of four to five in scalar mode, and much more in optimized vector mode. Advanced process technology optimizes each microcontroller's intrinsic power, and software-controlled features provide best-in-class power management.

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Key features and benefits

  • 266 MHz, 32-bit ARM9EJ-S core and Vector Floating Point coprocessor
  • Up to 256 kB of internal SRAM and 32 kB I-cache/32 kB D-cache with external memory controller for DDR and SDR SDRAM, SRAM, and Flash
  • Optional 10/100 Ethernet MAC and 24-bit LCD controller with support for STN and TFT panels
  • USB OTG with full-speed host and device capabilities
  • Comprehensive set of serial interfaces and SD memory-card interface

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Descriptive summary

The LPC3240 and LPC3250 microcontrollers have a 10/100 Ethernet MAC with a dedicated DMA controller. On the LPC3230 and the LPC3250, there is also a flexible LCD controller that supports STN and TFT panels, and offers a dedicated DMA controller and programmable display resolution up to 1024 x 768 and up to 16 million colors.

Multiple interfaces for serial communications increase design flexibility, provide larger buffer size, and deliver higher processing power. Each LPC3200 microcontroller has a 10-bit, 400 kHz A/D converter with three channels and a touchscreen interface. A seven-layer, 32-bit, 104 MHz AHB matrix provides a separate bus for each of the seven AHB masters (D-cache, I-cache, two DMA, Ethernet MAC, USB controller, and LCD controller).

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