LPC2478-STK Olimex Ltd., LPC2478-STK Datasheet - Page 9

• Manufacturer Part Number: LPC2478-STK
• Description: MCU, MPU & DSP Development Tools DEV BRD FOR LPC2478 64MB SDRAM 100MBIT
• Manufacturer: Olimex Ltd.

Specifications of LPC2478-STK

• Processor To Be Evaluated: LPC2478
• Interface Type: RS-232, Ethernet, USB, PS2, CAN, JTAG
• Dimensions: 134.6 mm x 101.6 mm
• Operating Supply Voltage: 3.3 V
• Tool Type: Development Kit
• Core Architecture: ARM
• Cpu Core: ARM7TDMI-S
• Data Bus Width: 32 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1701509 25R4708

BOARD LAYOUT:
POWER SUPPLY CIRCUIT:
RESET CIRCUIT:
CLOCK CIRCUIT:
LPC-2478STK is powered by +(9-12)VDC/6VAC applied at the power jack.
LPC-2478STK could also be powered by a battery (CR2032, Li, 3V) but this
battery only powers the 2KB internal SRAM and the RTC (Real Time Clock).
The consumption of LPC-2478STK varies depending on the supplied power
but at +10VDC it is about 250mA.
LPC-2478STK reset circuit is made with R68(47k) pull-up, capacitor
C20(100nF) and the RST button.
Quartz crystal 12 MHz is connected to LPC2478 pin 44 (XTAL1) and pin 46
(XTAL2).
Quartz crystal 32.768 kHz is connected to LPC2478 pin 34 (RTX1) and pin
36 (RTX2) and supplies the internal Real Time Clock.
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