MTG-12864D GENERAL SPECIFICATION Item INTERFACE PIN ASSIGNMENT Content Pin No. Pin Out Number of Character 128x64 Module Size 75.0(W)x52.7(H)x6.8/9.0(D)mm Max Viewing Area 60.0(W)x32.5(H)mm Dot Size/Dot Pitch 0.40(W)x0.40(H)mm/0.43(W)x0.43(H)mm Backlight Without/EL/LED Options Gray STN/Yellow STN/Normal/Extended Temperature/Bottom/Top Viewing Built-in Controller KS0108 or compatible V DD Logic supply voltage 2 V SS GND V ADJ S u p p l y v o l t a g e f o r L C D p a n e l , T U N I N G F R O M V DD- V EE 3 4~11 DB0~DB7 Data Bus: 3-state I/O common terminal. 12 CS1 Chip select for the left half of the display. Active high 13 CS2 Chip select for the right half of the display. Active high ELECTRICAL CHARACTERISTICS Item Power Supply for Logic Input Voltage Symbol Condition Min. Typ V DD- V SS - 4.5 5.0 5.5 V IL L level V SS 0 . 2 V DD - V IH H level 0 . 8 V DD V DD - T a = - 2 0 °C 10.1 10.7 11.3 T a = 2 5 °C 9.7 10.3 10.9 T a = 7 0 °C 9.6 10.2 10.8 - 1.5 1.8 Volt LCM Recommend LCD Module Driving Voltage V DD- V ADJ Power Supply Current for LCM I DD( L E D B/L OFF) I LED( L E D B/L ON) I EE Power Supply for LED Backlight Max. Unit note V DD= 5 . 0 V T a = 2 5 °C - 100 150 V DD- V ADJ= 1 0 . 3 V - 0.6 1.0 - 4.2 - Volt mA V LED BLOCK DIAGRAM MECHANICAL VDC 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. Read/Write R / W = h i g h : D a t a of DB0~DB7 c a n b e r e a d b y 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 Data/Instruciton D/I=high: Indicates that data of DB0~DB7 is display data.D/I=low: Indicates that data of DB0~DB7 is instruction. 14 RES 15 R/W 16 D/I 17 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. 18 VEE Supply voltage for LCD panel. Please refer page 11 for DC to DC connection 19 BKLA 20 BKLK - - - VLEDA-VLEDK=4.2V Function Description 1 - Power supply for backlight. (4.2V/100~150mA DC for LED backlight, 110V/400Hz AC for EL) POWER SUPPLY