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| MTC-20400X GENERAL SPECIFICATION Item Number of Character Module Size Viewing Area Character Size Dot Size/Dot Pitch Backlight Options 20x4 98.5(W)x60.0(H)x10.5/14.5(D)mm Max 76.0(W)x25.2(H)mm 2.95(W)x4.75(H)mm 0.55(W)x0.55(H)mm/0.60(W)x0.60(H)mm Without/EL/LED Gray STN/Yellow STN/Normal/Extended Temperature/Bottom/Top Viewing INTERFACE PIN ASSIGNMENT Content Pin No. Pin Out 1 V SS Ground Function Description 2 V DD Logic Circuit Power Supply 3 VO Power Supply for LCD Panel ELECTRICAL CHARACTERISTICS 4 RS Data/Instruction Register Select Item Power Supply for Logic Input Voltage Symbol V DD- V SS V IL V IH Condition L level H level T a = 0 C Min. 2.7 V SS 0 . 8 V DD 4.3 4.4 4.2 - Typ. 4.5 0 . 2 V DD V DD 4.5 4.6 4.4 1.5 175 Max. 5.5 4.7 Unit Note Volt Volt Volt 6 E Enable Signal 5 R/W Read/Write Select LCM Recommend LCD Module Driving Voltage Power Supply Current for LCM 7~14 V DD= 5 V T a = 2 5 C T a = 5 0 C I DD( B / L O F F ) I LED V DD= 5 V V DD- V O= 4 . 6 V T a = 2 5 C 4.8 4.6 2.0 mA 280 16 Volt 15 DB0~DB7 3-State I/O Data Bus BKL1 Power Supply for Backlight. 100V/400Hz AC for EL, 4.2V or 120~180mA DC for LED backlight. Don't care if no backlight BKL2 BLOCK DIAGRAM POWER SUPPLY MECHANICAL |
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