Datasheet HD44780U (LCD-II) (Hitachi) - 7

HD44780U HCD44780U Pad Location Coordinates Coordinate Coordinate Pad No. Function X (um) Y (um) Pad No. Function X (um) Y (um)
1 SEG22 –2100 2313 41 DB2 2070 –2290 2 SEG21 –2280 2313 42 DB3 2260 –2290 3 SEG20 –2313 2089 43 DB4 2290 –2099 4 SEG19 –2313 1833 44 DB5 2290 –1883 5 SEG18 –2313 1617 45 DB6 2290 –1667 6 SEG17 –2313 1401 46 DB7 2290 –1452 7 SEG16 –2313 1186 47 COM1 2313 –1186 8 SEG15 –2313 970 48 COM2 2313 –970 9 SEG14 –2313 755 49 COM3 2313 –755 10 SEG13 –2313 539 50 COM4 2313 –539 11 SEG12 –2313 323 51 COM5 2313 –323 12 SEG11 –2313 108 52 COM6 2313 –108 13 SEG10 –2313 –108 53 COM7 2313 108 14 SEG9 –2313 –323 54 COM8 2313 323 15 SEG8 –2313 –539 55 COM9 2313 539 16 SEG7 –2313 –755 56 COM10 2313 755 17 SEG6 –2313 –970 57 COM11 2313 970 18 SEG5 –2313 –1186 58 COM12 2313 1186 19 SEG4 –2313 –1401 59 COM13 2313 1401 20 SEG3 –2313 –1617 60 COM14 2313 1617 21 SEG2 –2313 –1833 61 COM15 2313 1833 22 SEG1 –2313 –2073 62 COM16 2313 2095 23 GND –2280 –2290 63 SEG40 2296 2313 24 OSC1 –2080 –2290 64 SEG39 2100 2313 25 OSC2 –1749 –2290 65 SEG38 1617 2313 26 V1 –1550 –2290 66 SEG37 1401 2313 27 V2 –1268 –2290 67 SEG36 1186 2313 28 V3 –941 –2290 68 SEG35 970 2313 29 V4 –623 –2290 69 SEG34 755 2313 30 V5 –304 –2290 70 SEG33 539 2313 31 CL1 –48 –2290 71 SEG32 323 2313 32 CL2 142 –2290 72 SEG31 108 2313 33 V 309 –2290 73 SEG30 –108 2313 CC 34 M 475 –2290 74 SEG29 –323 2313 35 D 665 –2290 75 SEG28 –539 2313 36 RS 832 –2290 76 SEG27 –755 2313 37 R/W 1022 –2290 77 SEG26 –970 2313 38 E 1204 –2290 78 SEG25 –1186 2313 39 DB0 1454 –2290 79 SEG24 –1401 2313 40 DB1 1684 –2290 80 SEG23 –1617 2313 7 Document Outline Description Features Ordering Information HD44780U Block Diagram HD44780U Pin Arrangement (FP-80B) HD44780U Pin Arrangement (TFP-80F) HD44780U Pad Arrangement HD44780U Pad Location Coordinates Pin Functions Function Description Interfacing to the MPU Reset Function Instructions Instruction Description Interfacing the HD44780U Power Supply for Liquid Crystal Display Drive Relationship between Oscillation Frequency and Liquid Crystal Display Frame Frequency Instruction and Display Correspondence Initializing by Instruction Absolute Maximum Ratings DC Characteristics AC Characteristics Bus Timing Characteristics Interface Timing Characteristics with External Driver Power Supply Conditions Using Internal Reset Circuit DC Characteristics AC Characteristics Bus Timing Characteristics Interface Timing Characteristics with External Driver Power Supply Conditions Using Internal Reset Circuit Electrical Characteristics Notes Load Circuits Timing Characteristics