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LM027 Dataheets PDF



Part Number LM027
Manufacturers ETC
Logo ETC
Description LCD
Datasheet LM027 DatasheetLM027 Datasheet (PDF)

LM027 • 24 Character x 1 line • Built-in control LSI HD44780 type (see page 23) • +5V single power supply MECHANICAL DATA (Nominal dimensions) Module size . . . . . . . . . . . 126W x 36H x 120 (max) mm Effective display area . . . . . . . . . . . 100W x 13.8H mm Character size (5 x 10 dots) ... 3.15W x 7.9H mm Pitch 3.75 mm Dot size . . . . . . . . . . . . . . . . . . . . . 0.55W x 0.7H mm Weight .. about 40 g ABSOLUTE MAXIMUM RATINGS .

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LM027 • 24 Character x 1 line • Built-in control LSI HD44780 type (see page 23) • +5V single power supply MECHANICAL DATA (Nominal dimensions) Module size . . . . . . . . . . . 126W x 36H x 120 (max) mm Effective display area . . . . . . . . . . . 100W x 13.8H mm Character size (5 x 10 dots) ........ 3.15W x 7.9H mm Pitch ......................... 3.75 mm Dot size . . . . . . . . . . . . . . . . . . . . . 0.55W x 0.7H mm Weight ........................... about 40 g ABSOLUTE MAXIMUM RATINGS min. Power supply for logic (Voo-Vss ) . . . . . . . . 0 Power supply for LCD drive (Voo -Vo) . . . . . 0 Input voltage (Vi) . . . . . . . . . . . . . . . . . . .Vss Operating temperature (Ta) . . . . . . . . . . . . . 0 Storage temperature (Tstg) . . . . . . . . . . . . -20 max. 7.0 V 13.5 V Voo V 50°C 70°C ELECTRICAL CHARACTERISTICS Ta = 25°C, Voo = 5.0 V ± 0.25 V Input "high" voltage (ViH ) . . . . . . . . . . . . . . 2.2 V min. Input "low" voltage (ViL ) . . . . . . . . . . . . . . 0.6 V max. Output high voltage (VOH ) (-IOH=0.2 mAl .. 2.4 V min. Output low voltage (VOL) (lOL = 1.2 mAl .... 0.4 V max. Power supply current (100 ) (V 00 = 5.0 V) .. 0.5 mA typo 2.0mA max. Power supply for LCD drive (Recommended) (Voo-Vo) Du=1/8 Du=1/11 atTa=0°C . . . . . . . . . . 4.0 4.2 V typo at Ta = 25°C . . . . . . . . . 3.7 3.8 V typo at Ta = 50°C . . . . . . . . . 3.3 3.3 V typo INTERNAL PIN CONNECTION Pin No. Symbol 1 Vss 2 Voo 3 Vo 4 RS Level H/L 5 R/W H/L 6 E H, H-+L 7 DBO H/L a DB1 H/L 9 DB2 H/L 10 DB3 H/L 11 DB4 H/L 12 DB5 H/L 13 DB6 H/L 14 DB7 H/L Function OV +5V Power supply - L: Instruction code input H: Data input H: Data read (LCD module-+MPU) L: Data write (LCD module+-MPU) Enable signal Data bus line Note (1), Note (2) Note: In the HD447aO, the data can be sent in either 4-bit 2-operation or a-bit 1-operation so that it can interface to both 4 and a bit MPU's. (1) When interface data is 4 bits long, data is transferred using only 4 buses of DB. - DB, and DBa -DB 3 are not used. Data transfer between the HD447aO and the MPU completes when 4-bit data is transferred twice. Data of the higher order 4 bits (contents of DB. -DB 7 when interface data is a bits long) is transferred first and then lower order 4 bits (contents of DBa -DB 3 when interface data is a bits long). (2) When interface data is a bits long, data is transferred using a data buses of DBa -DB 7 • OPTICAL DATA . . . . . . . . . . . . . . . . . . . . . . . See page 8 DDDDD ~ ~I 00000 00000 00000 DDODD DDDDD DDDDD 00 DDDDD ODDDDDDDDO o DDDDD_----'--- ,: III:;>; .1 Fig. 1 Display pattern @HITACHI Unit: mm 45 2.5±O.5 ~. 12.6±O.3 "~ ' ~ .1 2.54 II 1 2 3 =, ~ 0 ~ ;;; DOD 126.0±O.5 121.0±O.3 110.0+0.3 ./ 14-'1.0±O.1 II - 5.~_ - l - lO.5±O.5 5.3±O.5 I--- 89.4±O.2 100.0±O.3 -----.I ,= 0 - = I ~'" '" ~ ~ 0 I '" +1 ~ I ~ oi .1 4.7-5.3 l~ ~ ·1 4-.2.7±O.2 ~iz; r 7.3m" . I ~~ ='w ru .U ' j---' LJ - Fig. 2 External dimensions g" ~ *Ie height Unit: mm r--~-----------------------, I --~I ~~ R/ IV ---+--<~ I I LCD I RS I D~O LClllI 41i I I DB? I "DD ~ \',---1 HD44l1111 HD4411i1i I I - - - - IL_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I .J Fig. 3 Block diagram VDD LCM Va ( +5V) VDD- Va _<:5-: VR -'-- FDO Vss ,b VDD-VO: LCD driving voltage YR. 10k n ~20kn Fig.4 Power supply 46 @HITACHI TIMING CHARACTERISTICS Item Enable cycle time Enable pulse width 1--Enable rise/fall time RS, R/W set up time Data delay time Data set up time Hold time Symbol tcyc PwEH - -.-~------ ---- tEr' tEf tAS tOOR tosw tH Test condition Fig. 5, Fig. 6 Fig. 5, Fig. 6 Fig. 5, Fig. 6 Fig. 5, Fig. 6 Fig.6 Fig.5 Fig. 5, Fig. 6 min. typo max. Unit 1.0 - -- --_.- 450 - - ---- - - ).LS -----ns ------ - - 25 ns - .- - 140 - - ns . - - - - - -~---- - - - - - - - - .- - - 320 ns - - -c------ --- - 195 - - ns .- ----~---- -- 20 - - ns RS =>}22V 0_6V ~_',_s_ R/W 0.6\ 221X l~ ~_ _ _ _ _ _ _ __ I 2.2\' ~_ _ _ _ _ _---'I ll.(i\' - - - - - -----.--~~------------ ---1 Fig.5 Interface timing (data write) RS Rill 080- DB7 ~~~_.~r_-I-_ -'"_ '--____-----~-~r·'~::\:}(----------- ~22V I ~ ~'__-21._ _ __ 1----. i"WfH I~ ------I..:).~j__h. 1i ~2~21 ' If't/JJjf/ -,J. I 121 ;- ((JonV o.(lV*tf. f i'-I'-H. II- - - - - - - [- •I I-"-i ----------~I-----2-.4~1 ilr-.----~ Val id Data 2AV OAV 0.41' ~--------'C~y~C----------- Fig.6 Interface timing (data read) ~HITACHI 47 .


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