HE245XX50 240 X 128 Dots 1、EXTERNAL DIMENSION AND DISPLAY PATTERN 2、MECHANICAL DATA 3、ELECTRICAL CHARACTERISTICS (Ta=25℃) ITEM SPECIFICATION UNIT ITEM Module Size (W×H×T) Viewing Area (W×H) Number of Dots (W×H) Dot Pitch (W×H) Dot Size (W×H) 144.0×104.0×13.8 114.0×64.0 240×128 0.45×0.45 0.4×0.4 mm mm dots mm mm Supply Voltage (Logic) Supply Current (Logic) “HIGH” Input Voltage “LOW” “HIGH” Output Voltage “LOW” LCD Operating Voltage Supply Voltage LCD Drive SPEC. VALUE SYMBOL CONDITION VDD - VSS IDD VIH VIL VOH VOL VDD - Vo Io VDD=5V IOH=3.0mA IOL=3.0mA UNIT MIN. TYP. MAX. 4.5 VDD - 2.2 0 VDD - 0.3 - 5.0 8.7 - 5.5 13.0 VDD 0.8 VDD 0.3 V mA V V V V - 16.6 - V - 5.47 - mA VDD=5V, Ta=25℃ 4、PIN CONFIGURATION PIN SYMBOL 1 2 3 4 5 6 7 8 9 10 11 VSS VDD Vo C/D /RD /WR DB0 DB1 DB2 DB3 DB4 SIGNAL DESCRIPTION Ground Logic Voltage Operating Voltage for LCD (Variable) H : Instruction Code, L : Data Code Read Signal Write Signal Data Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 5、BLOCK DIAGRAM PIN SYMBOL 12 13 14 15 16 17 18 19 20 21 22 DB5 DB6 DB7 /CE /RES VEE MD2 FS1 NC A K SIGNAL DESCRIPTION Data Bit 5 Data Bit 6 Data Bit 7 Chip Enable Signal Reset Signal Supply Voltage for LCD Driver Number of Columns Select Signal Font Select (H : 6X8 Dots, L : 8X8)) No Connection Anode of LED Unit Cathode of LED Unit 6、BACKLIGHTING CHARACTERISTICS (Ta=25℃) LED ITEM SYMBOL CONDITION MIN TYP MAX UNIT Supply Voltage VLED - - 4.1 4.5 V Power Consumption PLED IF=720mA - 2950 - mW Luminous IV IF=720mA - 190 - cd/m2