Arm926EJ-S™ with 256 KB SRAM, USB High-Speed OTG, SD/MMC, Nand Flash Controller, Ethernet, LCD Controller | NXP Semiconductors

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Arm926EJ-S™ with 256 KB SRAM, USB High-Speed OTG, SD/MMC, Nand Flash Controller, Ethernet, LCD Controller

LPC3250FET296 Active

The LPC3250 operates at CPU frequencies of up to 266 MHz. The NXP® implementation uses an ARM926EJ-S CPU core with a Harvard architectur, 5-stage pipeline, and an integral Memory Management Unit. The LPC3250 also includes 256 kB of on-chip static RAM, a NAND flash interface, an Ethernet MAC, an LCD controller that supports STN and TFT panels, and an external bus interface that supports SDR and DDR SDRAM, as well as static devices. In addition, the LPC3250 includes a USB 2.0 full-speed interface, seven UARTs, two I2C-bus interfaces, two SPI/SSP ports, two I2S-bus interfaces, two single output PWMs, a motor control PWM, six general purpose timers with capture inputs and compare outputs, a Secure Digital interface, and a 10-bit Analog-to-Digital Converter with a touch screen sense option.

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Product Details

Block Diagram

Block diagram: LPC3220FET296, LPC3230FET296, LPC3240FET296, LPC3250FET296

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Features

  • ARM926EJS processor, running at CPU clock speeds up to 266 MHz
  • Vector Floating Point (VFP) coprocessor
  • 32 kB instruction cache and a 32 kB data cache
  • Up to 256 kB of Internal SRAM (IRAM)
  • Selectable boot-up from various external devices
  • Multi-layer AHB system that provides a separate bus for each AHB leader
  • External memory controller for DDR and SDR SDRAM as well as for static devices
  • Two NAND flash controllers
  • Leader Interrupt Controller (MIC) and two Follower Interrupt Controllers (SIC)
  • Eight channel General Purpose DMA (GPDMA) controller on the AHB
  • 10/100 Ethernet MAC with dedicated DMA Controller
  • USB interface supporting either device, host (OHCI compliant), or On-The-Go
  • Four standard UARTs with fractional baud rate generation
  • Three additional high-speed UARTs intended for on-board communications
  • Two SPI controllers
  • Two SSP controllers
  • Two I2C-bus interfaces with standard open-drain pins
  • Two I2S-bus interfaces, each with separate input and output channels
  • LCD controller supporting both STN and TFT panels
  • Secure Digital (SD) memory card interface
  • General Purpose (GP) input, output, and I/O pins
  • 10 bit, 400 kHz Analog-to-Digital Converter (ADC)
  • Real-Time Clock (RTC) with separate power pin and dedicated 32 kHz oscillator
  • 32-bit general purpose high-speed timer with a 16-bit pre-scaler
  • Six enhanced timer/counters
  • 32-bit millisecond timer driven from the RTC clock
  • WatchDog timer clocked by the peripheral clock
  • Two single-output PWM blocks
  • Motor control PWM
  • Keyboard scanner function allows automatic scanning of an up to 8 x 8 key matrix
  • Up to 18 external interrupts
  • Standard Arm® test/debug interface for compatibility with existing tools
  • Emulation Trace Buffer (ETB) with 2048 x 24 bit RAM allows trace via JTAG
  • Stop mode saves power
  • On-chip crystal oscillator
  • An on-chip PLL allows CPU operation up to the maximum CPU rate
  • Boundary scan for simplified board testing

Target Applications

  • Consumer
  • Medical
  • Industrial
  • Network control

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Documentation

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Application Note (8)
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  • J-Link PRO
    Test Accessories and Debugger

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  • J-Link PRO PoE
    Test Accessories and Debugger

    J-Link PRO PoE

    J-Link PRO PoE is a specialized programming / debug probe for creating test farms. It can draw power via Ethernet and supplies power to the target either via debug interf...
    J-Link PRO PoE By SEGGER Microcontroller GmbH Gold Partner
  • J-Link ULTRA+
    Test Accessories and Debugger

    J-Link ULTRA+

    The J-Link ULTRA+ is three times faster than the industry standard J-Link, at a 3 MBytes/s download speed to RAM. It comes complete with J-Flash, and Unlimited Flash Brea...
    J-Link ULTRA+ By SEGGER Microcontroller GmbH Gold Partner

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