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DMC-50149 Datasheet(PDF) 9 Page - OPTREX CORPORATION |
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DMC-50149 Datasheet(HTML) 9 Page - OPTREX CORPORATION |
9 / 16 page DMC-50149NYU-LY-B (AB) No.98-0118 OPTREX CORPORATION Page 9/16 OPTREX 4.I/O Terminal 4.1.Pin Assignment CN1 No. Symbol Level Function 1 VSS - Power Supply (0V) 2 VCC - Power Supply for Logic 3 VEE - Power Supply for LCD Drive 4 RS H / L Register Select Signal 5 R/W H / L Read/Write Select Signal H : Read L : Write 6 E H / L Enable Signal (No pull-up Resister) 7 DB0 H / L Data Bus Line / Non-connection at 4-bit operation 8 DB1 H / L Data Bus Line / Non-connection at 4-bit operation 9 DB2 H / L Data Bus Line / Non-connection at 4-bit operation 10 DB3 H / L Data Bus Line / Non-connection at 4-bit operation 11 DB4 H / L Data Bus Line 12 DB5 H / L Data Bus Line 13 DB6 H / L Data Bus Line 14 DB7 H / L Data Bus Line 15 VLED - Power Supply for LED 4.2.Example of Power Supply It is recommended to apply a potentiometer for the contrast adjust due to the tolerance of the driving voltage and its temperature dependence. MODULE VCC VEE VSS VEE (-Voltage) VCC (+Voltage) VR=10~20KΩ VSS (0V) VR |
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