Instruction/ maintenance manual of the product G1216B1N000 Seiko Instruments
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AN.No.G121 6B1N000- 3D0E LIQUID CRYSTAL DISPLA Y MODULE G 1 2 1 6 B 1 N 0 0 0 USER’S M ANUA L Seiko Instruments Inc..
AN.No.G121 6B1N000- 3D0E - i - This manual pr ovides t echnic al infor mation c overin g functio ns and operat ional instruc tions for the G1 216 liqu id cr ystal disp la y modules m ade b y Seiko Instrum ents Inc. Pleas e read throu gh this m anual bef ore operat ing the product.
AN.No.G121 6B1N000- 3D0E - ii - CONTENT S 1. GENERAL 1.1 General ..................................................................................................... 1 1.2 Features......................................................................
AN.No.G121 6B1N000- 3D0E - 1 - 1. GENERAL 1.1 General The G1216 is a ver y thin LC D m odule on whic h a f ul l-dot m atrix LCD pan el and a CMO S IC dr iver are integrate d.
AN.No.G121 6B1N000- 3D0E - 2 - 1.3 Absolute Maxim um Ratings (exclud ing LED b acklight) Vss = 0 V - 0.3 V DD -1 9.0 -0.3 -20 -30 +20 +20 Ta = 2 5 C 50 10%RH 65%R H 48 hrs 1000 hrs 7.
AN.No.G1216B1N000-3D0E - 3 - 1.6 Optical Characteristics Note 4 Note 3 40 100 630 2300 100 200 1000 3500 3.5 2.5 Refer to notes 1 and 2 -15 -20 15 30 50 70 -20 ° C 25 ° C Response time θ = 0 ° ∅ = 0 ° Vopr=14.
AN.No.G1216B1N000-3D0E - 4 - Brightness of non-selected dot (reflection) B 2 C = Brightness of selected dot (reflection) B1 t off t on Selected status (display ON) 10% B 2 B 1 0 (%) Operating voltage(.
AN.No.G1216B1N000-3D0E - 5 - (2) Electrical and optica l characteristics V mA 4.4 0.9 4.1 3.8 I F =90 mA V R =8 V V F I R Forward voltage Reverse current Ta = 25 ° C Item Symbol Meas. condition Max. Typ. Min. Unit (3) LED backlight connection diagram Number of LED chips=20 LEDC LEDA (4) Brightness (panel upper side) nit 2.
AN.No.G1216B1N000-3D0E - 6 - 1.9 Dimensions Unit: mm General dimensional tolerance: ± 0.5 Power supply voltage: +5.0 V GND: 0 V LC drive voltage Data bus (LSB) Data bus Data bus Data bus Data bus Dat.
AN.No.G121 6B1N000- 3D0E - 7 - 2. CIRCUIT CONFIGURATION 2.1 Block Diagram This pr oduct consis ts of t wo HD6120 2 segm ent drivers, a n HD6120 3 comm on driver and a bias voltage g enerator .
AN.No.G121 6B1N000- 3D0E - 8 - 2.2.1 Block Diagram ( Segment Dr iver) In put a nd Outp ut Buffer Instruction Register X, Y-Address Count er Z-Address Count er Disp lay Star t Li ne Register Busy Flag .
AN.No.G121 6B1N000- 3D0E - 9 - 2.2.2 Functions and Oper ations of Main Blocks (1) Interfac e Control U nit The interf ace contr ol unit c onsists of the fol lowing b lock s: Input and output buf fer I.
AN.No.G121 6B1N000- 3D0E - 10 - In order to r ead the con tent of the outp ut register, t he Chip Selec t must be selec ted, D/I must be 1, and R/W mus t be 1. W hen executing the “Rea d” instr uction, the contents of the output re gister stored at that tim e are o utput during the tim e that “E” is 1.
AN.No.G121 6B1N000- 3D0E - 11 - (4) Displa y start line register The displa y st art line register is a register whic h deter mines the line a ddress ( see Figure 6) for wh ich data is displa yed on the top lin e of the LCD s creen when displ aying th e contents of the dis pla y data RAM on the LCD screen.
AN.No.G121 6B1N000- 3D0E - 12 - 62 63 64 1 2 3 4 5 COM62 COM63 COM64 0 0 0 1 1 1 1 1 1 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 1 1 1 1 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 1 1 1.
AN.No.G121 6B1N000- 3D0E - 13 - Y-addres s counter This c ounter sets th e addres s by instr uction and is a utomatic ally adva nced by the r ead/wr ite operatio n. Count ing is p erform ed b y looping t he values 0 to 63. 2.3 Comm on driver (HD6 1203) The comm on driver is a 64 dr ive ou tput CMO S IC.
AN.No.G121 6B1N000- 3D0E - 14 - 3. OPER A T ING INST RUCTIONS 3.1 Term inal Functions 8 I/O MPU Com m on ter m inal f or tris tate inp ut and outp ut, and data b us. Funct ion s Destin atio n I/O QTY Signal DB 0 to DB 7 E 1 Enabl e W rite (R/W =0):Latc hes data of DB 0 to DB 7 at the fal l of E.
AN.No.G121 6B1N000- 3D0E - 15 - 3.2 Tim ing Character istics t f t CYC t CYC R / W 2.4V 0.4V t DDR t DHR t AH t AH 2.0V 0.8V t AS t AS 2.0V 0.8V t DHW t DSW t AS t AS 2.
AN.No.G121 6B1N000- 3D0E - 16 - 3.3 Reset Funct ion Setting the RST term inal to a lo w leve l when t he po wer is o n allows f or in itial s etup. Display OFF Displa y start lin e regis ter: Set addr ess 0. W hile the RST rem ains at a low le vel, ins tructions other th an the stat us read cannot be accept ed.
AN.No.G121 6B1N000- 3D0E - 17 - 3.4 Instructions 3.4.1 Gen eral Instructions are l isted on T able 2. Ins tructions other t han the St atus R ead instruc tion wi ll not be executed if they are sent while another instruc tion is alr ead y being exec uted.
AN.No.G121 6B1N000- 3D0E - 18 - (2) Display st art line DB 0 Code D/I DB 7 1 1 A A A A A A R/W 0 0 Upper bits Lower b its Sets the displ ay data RAM line a ddress ex pressed with binar y AAAA AA in the disp lay start lin e register.
AN.No.G121 6B1N000- 3D0E - 19 - (3) X- address (page) set DB 0 Code D/I DB 7 1 0 1 1 1 A A A R/W 0 0 Upper bits Lower b its The displa y data RA M “X” address (page) whic h is ex press ed with binar y AAA is set in the X -addr ess register.
AN.No.G121 6B1N000- 3D0E - 20 - (5) Status read ON/OFF DB 0 Code D/I DB 7 RESET 0 0 0 0 R/W 1 0 0 BUSY BUSY: W hen BUSY=1, it m eans that the the m odule is operating inter nall y and the n ext instruc tion is not accep ted unt il BUS Y=0. After conf irm ing that BUSY= 0, it is necessar y to per form the next write.
AN.No.G1216B1N000-3D0E - 21 - 3.5 Contrast Adjustment and Power Supply Example The LC panel viewing angle and display screen contrast are greatly affected by the ambient temperature. The recommended LC drive voltage (Vopr) at each temperature is given below.
AN.No.G1216B1N000-3D0E - 22 - Limit resistance “ R ” is calculated using the following equation. The resistance becomes the value shown in Figure 11.
AN.No.G121 6B1N000- 3D0E - 23 - 3.7 MPU Connec tion Dia gram G1216 D/I RST R/W DB 0 to DB 7 E CS1 CS2 Z80A V DD V SS V LC Z80 PIO Decode r D0 to D7 A0 to A 15 RD IORQ M1 INT RD IORQ M1 INT A0 A1 A / B.
AN.No.G121 6B1N000- 3D0E - 24 - 4 . PREC AUTIONS Sa fety If the LCD pan el is dam aged, be caref ul not to get the liq uid cr ystal in your m outh. If the l iquid cr y s tal touc hes your skin or c lothes, prom ptly wash it of f using s oap and p lent y of water.
AN.No.G121 6B1N000- 3D0E INDEX - A - Active d ispla y area ............................................................................. 2 - B - Bias volta ge gen erator ................................................................. 7, 13 Block diagram .
AN.No.G121 6B1N000- 3D0E - L - LC drive volt age ........................................................................... 6, 21 LC panel l ife tim e................................................................................ 4 LED back light charac terist ic s .
Seiko Instruments Inc. Head Office Components Overseas Mark et i ng & Sales Department 1-8, Nakase, Miham a-ku, Chiba-s hi, Chiba 261, Japan Phone: 043-211-1213 FAX: 043-211-8035 Seiko Instru ments U.S.A . Inc. Electroni c Com ponents Division 2990 W.
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