Nokia LCD Schematic

Arduino S1D15G10 Nokia LCD Interface

+3.3V

HPH Transistor

7407 Buffer IC with Open Collector Outputs

+3.3V

+3.3V

A1	VCC
01		A4
A2		04
02	7407	A5
A3		05
03		A6
GND		06

3.3V RESET

+5V

5V RESET.

+3.3V

^RUP

+3.3V
	-A CM Inn.rf
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>Roh
Rfi = 4K'	10K Ohms

Roh = 470 Ohms

Ryp = 2K - 6K Ohms

With this IC, when your input is HIGH, your OUTPUT is open. When the input is LOW, the output is LOW

Resistor Uołtage Diuider

* These ualues are approximate. Ir1 is 3mA