MTG-12232D GENERAL SPECIFICATION Item INTERFACE PIN ASSIGNMENT Pin No. Pin Out Content Number of Character 122x32 Module Size 59.0(W)x29.3(H)x5.5(D)mm Max Viewing Area 52.0(W)x15.0(H)mm Dot Size/Dot Pitch 0.345(W)x0.345(H)mm/0.375(W)x0.375(H)mm Backlight Without/LED Options Gray STN/Yellow STN, Extended Temperature, Bottom Viewing Built-In Controller SED1520DAA ELECTRICAL CHARACTERISTICS Item Power Supply for Logic Input Voltage LCM Recommend LCD Module Driving Voltage Power Supply Current for LCM Symbol Condition Min. Typ Max. Unit note V DD- V SS - 2.4 5.0 7.0 Volt V IL L level V SS 0 . 2 V DD - Volt - Function Description 1 V SS GND 2 V DD Logic supply voltage 3 VO LCD driver supply voltage 4 AO Display Data/Display commands switching input. Ao=0: DB0~DB7 are command input and status output. Ao=1: DB0~DB7 are Display Data input/output. 5 CS1 Chip select signal for the left half of the screen. Active Low 6 CS2 Chip select signal for the right half of the screen. Active Low 7 CL An external 2k Hz clock input. 8 /RD Read, active Low for 80 series 9 /WR Write, active Low for 80 series H level 0 . 8 V DD V DD - T a = 0 °C - - - V DD- V O T a = 2 5 °C 4.0 4.3 4.6 T a = 5 0 °C - - - I DD( L E D B/L OFF) V DD= 5 . 0 V - 0.6 1.1 V IH I EE( L E D B/L ON) V DD- V O= 4 . 3 V FLM=64Hz V LED= 4 . 2 V BLOCK DIAGRAM MECHANICAL Volt Volt mA - 45 60 - 10~17 DB0~DB7 3-state I/O data bus. 18 RES 19 LED A 20 LED K - Reset signal Power supply for LED backlight POWER SUPPLY