PIC-MAXI-WEB Olimex Ltd., PIC-MAXI-WEB Datasheet - Page 9

• Manufacturer Part Number: PIC-MAXI-WEB
• Description: MCU, MPU & DSP Development Tools TCP-IP DEV BRD FOR PIC18F97J60
• Manufacturer: Olimex Ltd.

Specifications of PIC-MAXI-WEB

• Processor To Be Evaluated: PIC18F97J60
• Data Bus Width: 8 bit
• Interface Type: RS-232, Ethernet
• Dimensions: 120 mm x 108 mm
• Operating Supply Voltage: 9 V to 25 V
• Tool Type: Development Kit
• Core Architecture: PIC
• Cpu Core: PIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1701534 25R4923

BOARD LAYOUT:
POWER SUPPLY CIRCUIT:
RESET CIRCUIT:
CLOCK CIRCUIT:
PIC-MAXI-WEB can take power only from power connector PWR, where (9-
12) VDC or (6-9) VAC external voltage source has to be applied.
The board power consumption is about 200 mA with all peripherals and
MCU running at full speed, relays and LEDs on and working Ethernet
connection.
PIC-MAXI-WEB reset circuit is made with RC group R20 – 10k and C31 –
100nF. Serial resistor R21 – 330Ω is used to prevent fast C31 charge and
discharge when PIC18F97J60 is being programmed.
Manual reset is possible by the RESET button.
Quartz crystal 25MHz is connected to PIC18F97J60 pins OSC1 (CLK1) and
OSC2 (CLKO). Internal PLL circuit can multiply this frequency up to
41MHz.
32.768 KHz quartz crystal is connected to PIC18F97J60 pins T1SO and
T1OSI for its internal Timer1.
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