MTG-12864A GENERAL SPECIFICATION Item INTERFACE PIN ASSIGNMENT Pin No. Pin Out Content Number of Character 128x64 Module Size 93.0(W)x70.0(H)x9.7/14.5(D)mm Max Viewing Area 71.7(W)x39.0(H)mm Dot Size/Dot Pitch 0.50(W)x0.50(H)mm/0.52(W)x0.52(H)mm Backlight Without/EL/LED Options Gray STN/Yellow STN/Normal/Extended Temperature/Bottom/Top Viewing Built-in Controller KS0108 or compatible ELECTRICAL CHARACTERISTICS Item Symbol Condition Min. Typ V DD- V SS - 4.5 5.0 5.5 Volt V IL V IH L level H level V SS 0 . 8 V DD 0 . 2 V DD V DD - Volt Volt - LCM Recommend LCD Module Driving Voltage T a = 0 °C 8.3 9.0 9.3 V DD- V ADJ T a = 2 5 °C 8.4 8.7 9.0 Volt - T a = 5 0 °C 7.7 7.92 8.2 Power Supply Current for LCM I DD( L E D B/L OFF) I EE( L E D B/L ON) I EE V DD= 5 . 0 V - 1.5 1.8 FLM=64Hz - 390 585 VLEDA-VLEDK=4.2V - 0.6 1.0 Power Supply for LED backlight V LED T a = 2 5 °C - 4.2 - Power Supply for Logic Input Voltage Max. Unit note V SS GND 2 V DD Logic supply voltage 3 V ADJ P o w e r s u p p l y f o r L C D p a n e l , t u n i n g f o r m V DD- V EE 4 D/I Data/Instruciton D/I=high: Indicates that data of DB0~DB7 is display data. 5 R/W Read/Write R/W=high: Data of DB0~DB7 can be read by CPU. R/W=low: Data of DB0~DB7 can be written into LCD driver IC at the falling edge of E when CS1 and CS2 is high 6 E Enable: When write (R/W=low): Data of DB0~DB7 is latched at the fall of E. When read(R/W=high): Data is read while E is at high level. 7~14 V DD- V ADJ= 8 . 7 V BLOCK DIAGRAM MECHANICAL mA V Function Description 1 DB0~DB7 Data Bus: 3-state I/O common terminal. 15 CS1 Chip select for the left half of the display. Active high 16 CS2 Chip select for the right half of the display. Active high 17 RES Setting the RES signal to Low level can initialize the following registers. 1. ON/OFF register 0 set (Display off) 2. Display start line register 0 set(display starts from line 0). After releasing reset, this condition can be changed only by software. 18 VEE Power supply for LCD driving circuit.Please refer page 11 for DC to DC connecting 19 BKLA 20 BKLK - DC Power supply for backlight. (4.2V/390~585mA DC for LED backlight, 110V/400Hz AC for EL) POWER SUPPLY