PIC-LCD Olimex Ltd., PIC-LCD Datasheet - Page 10

• Manufacturer Part Number: PIC-LCD
• Description: MCU, MPU & DSP Development Tools DEV BRD FOR PIC18LF8490
• Manufacturer: Olimex Ltd.

Specifications of PIC-LCD

• Processor To Be Evaluated: PIC18F8490
• Interface Type: RS-232, I2C, SPI
• Dimensions: 3 in x 2.5 in
• Operating Supply Voltage: 9 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

BOARD LAYOUT:
POWER SUPPLY CIRCUIT:
RESET CIRCUIT:
CLOCK CIRCUIT:
The board power consumption at 6VDC is up to 10mA.
PIC-LCD reset circuit is realized with a reset button (RST) and the pull-up
resistor R2 (10k).
Quartz crystal 20 MHz is connected to PIC18F8490 pin 49
(OSC1/CLKI/RA7) and pin 50 clock out (OSC2/CLKO/RA6).
Quartz crystal 32.768 kHz is connected to
(RC1/T1OSI/CCP2) and pin 36 (RC0/T1OSO/T13CKI) and supplies the
Timer1 which could function as a Real Time Clock.
PIC-LCD should be supplied with 6 VAC or +(6-9)VDC. The voltage should
not exceed 12 VDC because otherwise the input voltage regulator will be
destroyed. The board could also take power from a battery +(4.5-6)VDC.
PIC18F8490 pin 35
clock in