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16com/60seg driver & controller for dot matrix lcd S6A2068 1 precautions for light light has characteristics to move electrons in the integrated circuitry of semiconductors, therefore may change the characteristics of sem iconductor devices when irradiated with light. consequently, the users of the packages which may expose chips to external light such as cob, cog, tcp and cof must consider effective methods to block out light from reaching the ic on all parts of the surfac e area, the top, bottom and the sides of the chip. follow the precautions below when using the products. 1. consider and verify the protection of penetrating light to the ic at substrate ( board or glass) or product design stage. 2. always test and inspect produ cts under the environment with no penetration of light. introduction the S6A2068 is a dot matrix lcd driver & controller lsl which is fabricated by low power cmos technology. function ? character type dot matrix lcd driver & controller ? internal driver: 16 common and 60 segment signal output ? display characte r format: 5 7 dots + cursor, 5 10 dots + cursor ? easy interface with a 4 - bit or 8 - bit mpu ? display character pattern: 57 dots format: 192 kinds, 510 dots format: 32 kinds ? the special c haracter pattern is directly programmable by the character generator ram. ? a customer character pattern programmable by mask option ? automatic power on reset function ? it can drive a maximum of 80 characters by using the s6a0065 or s6a2067 externally. ? it is possible to read both character generator and display data ram from mpu. features ? internal memory ? character generator rom: 8,320bits ? character generator ram: 512 bits ? display data ram: 80 8bits (80 character s max.) ? power supply voltage; 2.7 to 5.5v ? supply voltage for display: 0 to - 5 v (v5) ? cmos process ? 1/8 duty, 1/11 duty or 1/16 duty: programmable (1/8 duty; 5 7 dots format 1 - line, 1/11 duly; 5 10 dots for mat 1 - line, 1/16 duty: 5 7 dots format 2 - line) ? 100 qfp or bare chip available
S6A2068 16com/60seg driver & controller for dot matrix l cd 2 block diagram v1 v2 v3 v4 v5 parallel/serial data conversion circuit busy flag character generator rom (cgrom) 8320 bits character generator ram (cgram) 512 bits cursor & blink controller circuit 5 5 input/ output buffer data register (dr) instruction register (ir) instruction decoder (id) address counter (ac) display data ram (ddram) 80x8 bits timing generator circuit 16-bit shift register common driver 60-bit shift register 60-bit latch circuit seg- ment driver r/w rs e db0-db3 db4-db7 osc1 osc2 clk1 clk2 m d s1-s60 common c1-c16 8 8 8 7 7 8 7 8 8 7 7 16 60 power supply for lcd drive 4 4 7 v dd gnd 16 60 60 figure 1 . S6A2068 block diagram
16com/60seg driver & controller for dot matrix lcd S6A2068 3 pin configuration S6A2068 s47 s48 s49 s50 s51 s52 s53 s54 s55 s56 s57 s58 s59 s60 c16 c15 c14 c13 c12 c11 c10 c9 c8 c7 c6 c5 c4 c3 c2 c1 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 s46 s45 s44 s43 s42 s41 s40 s39 s38 s37 s36 s35 s34 s33 s32 s31 s30 s29 s28 s27 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 s26 s25 s24 s23 s22 s21 s20 s19 s18 s17 s16 s15 s14 s13 s12 s11 s10 s9 s8 s7 s6 s5 s4 s3 s2 s1 vss osc2 osc1 v1 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 db7 db6 db5 db4 db3 db2 db1 db0 vdd e r/w rs d m clk2 clk1 v5 v4 v3 v2 figure 2 . S6A2068 pin configuration
S6A2068 16com/60seg driver & controller for dot matrix l cd 4 pad diagram 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 S6A2068 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 chip size: 3700 5050 pad size: 100 100 unit: m m (0, 0) x y figure 3 . S6A2068 pad diagram * S6A2068 marking: easy to find the pad no. 77, 82
16com/60seg driver & controller for dot matrix lcd S6A2068 5 pad location [unit: m m] table 1 . S6A2068 pad location pad pad coordinate pad pad coordinate pad pad coordinate num. name x y num. name x y num. name x y 1 s26 - 1684 1686 35 clk1 - 453 - 2358 69 s58 1684 436 2 s25 - 1684 1560 36 clk2 - 328 - 2358 70 s57 1684 560 3 s24 - 1684 1436 37 m - 203 - 2358 71 s56 1684 686 4 s23 - 1684 1310 38 d - 78 - 2358 72 s55 1684 810 5 s22 - 1684 1186 39 rs 47 - 2358 73 s54 1684 936 6 s21 - 1684 1060 40 r/w 172 - 2358 74 s53 1684 1060 7 s20 - 1684 936 41 e 297 - 2358 75 s52 1684 1186 8 s19 - 1684 810 42 vdd 422 - 2358 76 s51 168 4 1310 9 s18 - 1684 686 43 db0 547 - 2358 77 s50 1684 1436 10 s17 - 1684 560 44 db1 672 - 2358 78 s49 1684 1560 11 s16 - 1684 436 45 db2 797 - 2358 79 s48 1684 1686 12 s15 - 1684 310 46 db3 922 - 2358 80 s47 1249 2358 13 s14 - 1684 186 47 db4 1047 - 2358 81 s46 1124 2358 14 s13 - 1684 60 48 db5 1172 - 2358 82 s45 999 2358 15 s12 - 1684 - 64 49 db6 1297 - 2358 83 s44 874 2358 16 s11 - 1684 - 190 50 db7 1422 - 2358 84 s43 749 2358 17 s10 - 1684 - 314 51 c1 1684 - 1814 85 s42 624 2358 18 s9 - 1684 - 440 52 c2 1684 - 1690 86 s41 499 2358 19 s8 - 1684 - 564 53 c3 1684 - 1564 87 s40 374 2358 20 s7 - 1684 - 690 54 c4 1684 - 1440 88 s39 249 2358 21 s6 - 1684 - 814 55 c5 1684 - 1314 89 s38 124 2358 22 s5 - 1684 - 940 56 c6 1684 - 1190 90 s37 - 1 2358 23 s4 - 1684 - 1064 57 c7 1684 - 1064 91 s36 - 126 2358 24 s3 - 1684 - 1190 58 c8 1684 - 940 92 s35 - 251 2358 25 s2 - 1684 - 1314 59 c9 1684 - 814 93 s34 - 376 2358 26 s1 - 1684 - 1440 60 c10 1684 - 690 94 s33 - 501 2358 27 vss - 1684 - 1702 61 c11 1684 - 564 95 s32 - 626 2358 28 osc2 - 1684 - 1868 62 c12 168 4 - 440 96 s31 - 751 2358 29 osc1 - 1684 - 1994 63 c13 1684 - 314 97 s30 - 876 2358 30 v1 - 1078 - 2358 64 c14 1684 - 190 98 s29 - 1001 2358 31 v2 - 953 - 2358 65 c15 1684 - 64 99 s28 - 1126 2358 32 v3 - 828 - 2358 66 c16 1684 60 100 s27 - 1251 2358 33 v4 - 703 - 2358 6 7 s60 1684 186 34 v5 - 578 - 2358 68 s59 1684 310 note: "S6A2068" marking: easy to find the pad no. 77, 82.
S6A2068 16com/60seg driver & controller for dot matrix l cd 6 pin description table 2 . S6A2068 pin description pin (no). i/o name description interface v dd (42) power power supply for logical circuit (2 .7v to 5.5v) power v ss (gnd) (27) 0v (gnd) supply v1 - v5(30 - 34) bias voltage level for lcd driving s1 - s60 (1 - 26, 67 - 100) output segment output segment signal output for lcd driving lcd c1 - c16 (51 - 66) output common output common signal output for l cd driving lcd osc1, osc2 (29) (28) input (osc1) output (osc2) oscillator both pin connected to rf resistor for internal oscillator circuit. in case of external frequency use only, the frequency is input to osc1 terminal. resistor clk1 (35) output dat a latch clock clock output terminal for the serially transferred data to be latched to the driver. s6a0065 or clk2 (36) data shift clock clock output terminal used when d terminal data output shifts the inside of the driver. s6a2067 m (37) alternated signal for lcd driver output the alternating signal to convert lcd drive waveform to ac. d (38) display data interface character pattern data, which is corresponding to each common signal, is supplied to driver serially. e (41) input read/write enabl e start enable signal to read or write the data mpu r/w (40) read/write r/w signal input is used to select the read/write mode rs (39) register select register selection input db0 - db7 (43 - 50) input/ output data interface used for data transfer betwe en the mpu and S6A2068. these terminals are for data bus with bi - directional three - state. first 4 - bit (db0 - db3) are not used during 4 - bit operation (db7 can be used as a busy flag).
16com/60seg driver & controller for dot matrix lcd S6A2068 7 internal logic of input/output terminal input/output logic diagram app licable pin input no pull up v dd e with pull up v dd v dd rs, r/w output v dd clk1, clk2 m, d input/output v dd v dd v dd enable data db0 - db7
S6A2068 16com/60seg driver & controller for dot matrix l cd 8 maximum absolute lim it (t a = 25 c) characteristic symbol value unit operating voltage v dd - 0.3 to +7.0 v driver supply voltage v lcd v dd - 11.5 to v dd + 0.3 v input voltage v in - 0.3 to v dd + 0.3 v power dissipation p d 500 mw operating temperature t opr - 30 to +85 c storage temperature t stg - 55 to + 125 c note: voltage greater than above may damage the circuit (v dd 3 v1 3 v2 3 v3 3 v4 3 v5)
16com/60seg driver & controller for dot matrix lcd S6A2068 9 electrical character istics dc characteristics (v dd = 4.5v to 5.5v, v ss = 0v, t a = - 30 to +85 c) characteristic symbol test condition min typ max unit applicable pin operating voltage v dd ? 4.5 ? 5.5 v operating current (*1) i dd1 ceramic resonator f osc = 250khz ? 0.65 0.9 ma i dd2 resistor oscillation external clock operation f osc = 270khz ? 0.45 0.7 input voltage 1 high v ih1 ? 2.2 ? v dd v e, db0 - db7, low v il1 ? - 0.3 ? 0.6 r/w, rs input voltage 2 high v ih2 ? v dd - 1.0 ? v dd osc1 low v il2 ? - 0.2 ? 1.0 outp ut voltage 1 high v oh1 i oh = - 0.205ma 2.4 ? ? db0 - db7 low v ol1 i ol = 1.2ma ? ? 0.4 output voltage 2 high v oh2 i o = - 40 m a 0.9v dd ? ? clk1, lk2, m, d low v ol2 i o = 40 m a ? ? 0.1v dd voltage drop (*2) com vd com i o = 0 .1ma ? ? 1 c1 - c16 seg vd seg ? ? 1 s1 - s60 input leakage current i lkg v in = 0 v or v dd - 1 ? 1 m a e input low current i in v dd = 5v(test pull up r) - 50 - 125 - 250 rs, r/w external clock frequency (*3) f ec ? 125 250 350 khz osc1 duty duty 45 50 55 % rise time t r ? ? 0.2 m s fall time t f ? ? 0.2 m s internal clock frequency (*3) f osc1 rf = 91k w 2% v dd = 5v 190 270 360 khz osc1, osc2 lcd driving v lcd1 v dd - v5 1/5 bias 4.6 ? 10.0 v v1 - v5 voltage (*4) v lcd 2 1/4 bias 3.0 ? 10.0
S6A2068 16com/60seg driver & controller for dot matrix l cd 10 dc characteristics (v dd = 2.7v to 4.5v, v ss = 0v, t a = - 30 to +85 c) characteristic symbol test condition min typ max unit applicable pin operating voltage v dd ? 2.7 3.0 4.5 v operating current (*1) i dd1 ceramic resonator f osc = 250khz ? 0.3 0.5 ma i dd2 resistor oscillation external clock operation f osc = 270khz ? 0.17 0.3 input voltage 1 high v ih1 ? 1.9 ? vdd v e, db0 - db7, low v il1 ? - 0.3 ? 0.4 r/w, rs input voltag e 2 high v ih2 ? 0.7v dd ? v dd osc1 low v il2 ? ? ? 0.2v dd output voltage 1 high v oh1 i oh = - 0.205ma 2.0 ? ? db0 - db7 low v ol1 i ol = 1.2ma ? ? 0.4 output voltage 2 high v oh2 i o = - 40 m a 0.8v dd ? ? clk1, clk2, low v ol2 i o = 40 m a ? ? 0.2v dd m, d voltage drop (*2) com vd com i o = 0.1ma ? ? 1 c1 - c16 seg vd seg ? ? 1.5 s1 - s60 input leakage current i lkg v in = 0 v or v dd - 1 ? 1 m a e input low current i in v dd = 5v (test pull up r) - 10 - 50 - 120 rs, r/w external cl ock freq. (*3) f ec ? 125 250 350 khz osc1 duty duty 45 50 55 % rise time t r ? ? 0.2 m s fall time t f ? ? 0.2 m s internal clock frequency (*3) f osc1 rf = 75k w 2% v dd = 3v 190 270 350 khz osc1, osc2 lcd driving v lcd1 v dd - v5 1/5 bias 3.0 ? 10.0 v v1 - v5 voltage v lcd2 1/4 bias 3.0 - 10.0
16com/60seg driver & controller for dot matrix lcd S6A2068 11 notes: *1) the supply current value from v dd when condition is as follows v dd = 5v, v ss = 0v, v5 = - 2v v dd = 3v, v ss = 0v, v5 = - 2v *2) applied to the volt age drop occurring from terminals v dd , v1, v4 and v5 to each common terminal (c1 - c16) when 0.1ma is flown in or out to and from all com and seg terminals, and also to voltage drop occurring from terminals v dd , v2, v3 and v5 to each seg terminal ( s1 - s60). when the output level is at v dd , v1 or v2 level, 0.1ma is flown out, while 0.1ma flow in when the output level is at v3, v4 or v5 level. this occurs when 5 v or - 5 v is input to v dd , v1 and v3 or to v2, v4, and v5 respectively. *3) and *4): refer to oscillator circuit and input the voltage listed in the table bellow to v1 - v5 *3) oscillator circuit resistor circuit external circuit osc1 osc2 rf: 91k w + 2% rf osc1 osc2 open frequency input *4) input the voltage listed in the table below to v 1 - v 5 d uty 1/8, 1/11 duty 1/16 power supply bias 1/4 bias 1/5 v 1 v dd - v lcd /4 v dd - v lcd /5 v 2 v dd - v lcd /2 v dd - 2v lcd /5 v 3 v dd - v lcd /2 v dd - 3v lcd /5 v 4 v dd - 3v lcd /4 v dd - 4v lcd /5 v 5 v dd - v lcd v dd - v lcd note: v lcd is the lcd driving voltage, refer to t he initial set of the instruction code.
S6A2068 16com/60seg driver & controller for dot matrix l cd 12 ac characteristics (1) write mode (writing data from micom to S6A2068) ( v dd = 4.5v to 5.5v, t a = - 30 to +85 c) characteristic symbol min typ max unit test pin e cycle time t c 500 ? ? ns e e rise time t r ? ? 25 ns e e fall time t f ? ? 25 ns e e pulse width (high, low) t w 220 ? ? ns e r/w and rs set - up time t su1 40 ? ? ns r/w, rs r/w and rs hold time t h1 10 ? ? ns r/w, rs data set - up time t su2 60 ? ? ns db0 - db7 data hold time t h2 10 ? ? ns db0 - db7 ( v dd = 2.7v to 4.5v, t a = - 30 to +85 c) characteristic symbol min typ max unit test pin e cycle time t c 1400 ? ? ns e e rise / fall time t r ? ? 25 ns e e pulse width (high, low) t w 400 ? ? ns e r/w and rs set - up time t su1 60 ? ? ns r/w, rs r/w and rs hold time t h1 20 ? ? ns r/w, rs data set - up time t su2 140 ? ? ns db0 - db7 data hold time t h2 10 ? ? ns db0 - db7
16com/60seg driver & controller for dot matrix lcd S6A2068 13 v ih1 v il1 t su1 v il1 t h1 v il1 t h1 t w t h2 v ih1 v il1 t su2 t r v ih1 v il1 valid data v ih1 v il1 t c db0 - db7 e r/w rs v ih1 v il1 t f v ih1 v il1 v il1
S6A2068 16com/60seg driver & controller for dot matrix l cd 1 4 (2) read mode (reading data from S6A2068 to mcu ) (v dd = 4.5v to 5.5v, t a = - 30 to +85 c) characteristic symbol min typ max unit test pin e cycle time t c 500 ? ? ns e e rise time t r ? ? 25 ns e e fall time t f ? ? 25 ns e e pulse width (high, low) t w 220 ? ? ns e r/w a nd rs set - up time t su 40 ? ? ns r/w, rs r/w and rs hold time t h 10 ? ? ns r/w, rs data output delay time t d ? ? 120 ns db0 to db7 data hold time t dh 20 ? ? ns db0 to db7 (v dd = 2.7v to 4.5v, t a = - 30 to +85 c) characteri stic symbol min typ max unit test pin e cycle time t c 1400 ? ? ns e e rise / fall time t r ? ? 25 ns e e pulse width (high, low) t w 400 ? ? ns e r/w and rs set - up time t su 60 ? ? ns r/w, rs r/w and rs hold time t h 20 ? ? ns r/w, rs data output delay t ime t d ? ? 360 ns db0 - db7 data hold time t dh 5 ? ? ns db0 - db7
16com/60seg driver & controller for dot matrix lcd S6A2068 15 v ih1 v il1 t su t h v il1 t h t w t d v ih1 v il1 t d t r v ih1 v il1 valid data v oh1 v ol1 t c db0 - db7 e r/w rs v ih1 v il1 t f v il1 v il1
S6A2068 16com/60seg driver & controller for dot matrix l cd 16 (3) interface mode (with s6a0065, s6a2067) (v dd = 2.7v to 5.5v, t a = - 30 to +85 c) characteristic symbol min typ max unit te st pin clock pulse width high t wckh 800 ? ? ns clk clock pulse width low t wckl 800 ? ? ns clk data set - up time t su 300 ? ? ns d data hold time t dh 300 ? ? ns d clock set - up time t csu 500 ? ? ns clk m delay time t dm - 1000 ? 1000 ns m m d clk2 clk1 0.9v dd t wckh 0.1v dd t dh t dm 0.9v dd t wckh t csu 0.9v dd t csu 0.1v dd 0.9v dd t wckl 0.1v dd 0.1v dd 0.9v dd t su 0.9v dd
16com/60seg driver & controller for dot matrix lcd S6A2068 17 control and display command command rs r/w db7 db6 db5 db4 db3 db4 db1 db0 execution time (f osc =250khz) remark clear display 0 0 0 0 0 0 0 0 0 1 1.64ms return home 0 0 0 0 0 0 0 0 1 x 1.64ms cursor move to first digit entry mode se t 0 0 0 0 0 0 0 1 i/d sh 40 m s i/d; set cursor move direction h: increase l: decrease sh: specifies shift of display h: display is shifted l: display is not shifted display on/off 0 0 0 0 0 0 1 d c b 40 m s display: d h: display on l: display off cursor: c h: cursor on l: cursor off blinking: b h: blinking on l: blinking off shift 0 0 0 0 0 1 s/c r/l x x 40 m s sc h: display shift l: cursor move r/l h: right shift l: left shift set function 0 0 0 0 1 dl n f x x 40 m s dl h: 8 - bit interfac e l: 4 - bit interface n h: 2 line display l: 1 line display f h: 5 x 10 dots l: 5 x 7 dots .
S6A2068 16com/60seg driver & controller for dot matrix l cd 18 control and display command (continued) command rs r/w db 7 db 6 db 5 db 4 db 3 db 2 db 1 db 0 execution time (f osc =250khz) remark set cg ram address 0 0 0 1 cg ram address (corresponds to cursor address) 40 m s cg ram data is sent and received after this setting set dd ram address 0 0 1 dd ram address 40 m s dd ram data is sent and received after this setting read busy flag & address 0 1 bf address counter used for both dd & cd ram address 0 m s bf h: busy l: re ady - reads bf indication internal operating is being performed. - reads address counter contents write data 1 0 write data 46 m s write data into dd or cgram read data 1 1 read data 46 m s read data from dd or cgram notes: 1. when a mpu progr am with busy flag (db7) checking is made, 1/2 f osc (is necessary) for executing the next instruction by the "e" signal after the busy flag (db7) goes to "low". 2. "x" is don't care.
16com/60seg driver & controller for dot matrix lcd S6A2068 19 application informat ion according to lcd panel 1) lcd p anel: 12 character 1 - line, character format; 5 7 dots + 1 - cursor line (1/4 bias, 1/8 duty) S6A2068 c1 c8 s1 s60 2) lcd panel: 12 character 1 - line, c haracter format; 5 10 dots + 1 - cursor line (1/4 bias, 1/11 duty) S6A2068 c1 c11 s1 s60
S6A2068 16com/60seg driver & controller for dot matrix l cd 20 3) lcd panel : 12 character 2 - line character format; 5 7 dots + 1 - cursor line (1/5 bias, 1/16 duty) S6A2068 c1 c8 s1 s60 c9 c16 4) lcd panel: 24 character 1 - line, character format; 5 7 dots + 1 dot + 1 - cursor line (1/5 bias, 1/16 duty) S6A2068 c1 c8 c9 c16 s1 s60
16com/60seg driver & controller for dot matrix lcd S6A2068 21 5) lcd panel: 6 character x 2 - line character format; 5 x 7 dots + 1 - cursor line (1/4 bias, 1/8 duty) S6A2068 c1 c8 s60 s1 s30 s31 bias voltage divide circuit S6A2068 v dd v 1 v 2 v 3 v 4 v 5 r r r r gnd or other voltage v dd S6A2068 v dd v 1 v 2 v 3 v 4 v 5 r r r r gnd or other voltage v dd r (1/4 bias, 1/8 or 1/11 duty ) (1/5 bias, 1/16 duty)
S6A2068 16com/60seg driver & controller for dot matrix l cd 22 application circuit to mpu v5 v4 v3 v2 v1 v dd clk2 clk1 m v ss osc2 osc1 d s1 - s60 c1 - c16 v6 v dd v ss shl2 shl1 fcs m v5 v4 v3 v2 v1 v ee cl2 cl1 dr2 dr1 dl2 sc1 - sc40 dl1 v6 v dd v ss shl2 shl1 fcs m v5 v4 v3 v2 v1 v ee cl2 cl1 dr2 dr1 dl2 sc1 - sc40 dl1 v6 v dd v ss shl2 shl1 fcs m v5 v4 v3 v2 v1 v ee cl2 cl1 dr2 dr1 dl2 sc1 - sc40 dl1 v lcd (1/5 bias) gnd or other voltage lcd panel v4 v5 v2 v3 v1 db0-db7 when s6a0065 is externally connected to the S6A2068, you can increase the number of display digits up to 80 characters.

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