MTG-12232C GENERAL SPECIFICATION Item INTERFACE PIN ASSIGNMENT Content Pin No. Pin Out 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 SED1520DOA 1 V LED Cathode of LED backlight, which is common Anode with logic circuit. 2 V SS GND 3 V DD Logic supply voltage 4 VO LCD driver supply voltage - 5 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. - 6 E1 Enable signal for the left half of the screen. Active Low 7 E2 Enable signal for the right half of the screen. Active Low 8~15 DB0~DB7 16 R/W ELECTRICAL CHARACTERISTICS Item Power Supply for Logic Input Voltage LCM Recommend LCD Module Driving Voltage Power Supply Current for LCM Symbol Condition Min. Typ V DD- V SS - 2.4 5.0 7.0 Volt V IL L level V SS 0 . 2 V DD - Volt V IH H level 0 . 8 V DD V DD - Volt 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 - 45 60 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 Function Description Max. Unit note Volt mA - 3-state I/O Data Bus High for Read, Low for Write POWER SUPPLY