lsi ls 6027 game (roulette) and watch features * real time clock. * alarm and snooze. * 3 keys operation, kset, khr, kmin. * analog display. * roulette game * 1/2 bias 1/3 duty lcd format * 32768 crystal oscillator * single 3.0v operation. * direct buzzer driver. general description the LS6027 is a roulette game with 3 1/2 digit lcd watch display. the current time is also displayed in an analog format with 5 minute step. it has an alarm and snooze function. it is ideal for a low c ost watch, gift item or key chain. it is simple three keys operation : kset, khr, kmin. lcd drawing
lsi LS6027 2 functional description power up at power up, all lcd segment turns on for 1 second . clock mode the LS6027 is a analog-digital watch with a roul ette game. at clock mode, the LS6027 has 3 1/2 digit lcd for time display and a 12 section time r ange for analog clock display. three key operation the LS6027 support 3 keys : kset, kmin, khr. clock mode: 1. press khr to toggle sound. 2. press kmin to enter game mode. 3. press kset to enter setting mode. setting mode : at clock mode, press kset to enter setting mode in the following sequence: clock mode set alarm enable/disable set alarm hour:minute set time hour:minute clock mode?? in set alarm/time mode, press khr to set hour, pres s kmin to set minute. in set alarm enalble/disable, press khr/kmin toggle s alarm enalbe/disable. in all setting mode, if the value is changed, press kset set will exit setting mode and goes back to clock mode. at game mode, 1. press kmin to start the roulette. 2. press khr to toggle sound. 3. press kset goes back to clock mode. the rule of the game. every time the khr is pressed , 20 marks will be de ducted. if the icon stops at h12, m12, h4, m4, h8, h8, the mark will be incremented according to the table. pattern add marks h12 100 m12 50 h8 30 m8 20 h4 30 m4 20
lsi LS6027 3 pin assignment designation type description b0, b1 output buzzer output f512, vcap output doubler output vee output vee t1, t2, xt4, xt5, xt6, xt7, xt8, xt9, xt10, xt11, xt3 input test pin cosco output 32khz oscillator output cosci input 32khz oscillator input vdd power +3.0v power supply gnd power ground kset, kmin, khr input(ph) input key pb input(ph) power up reset c[1:3] output lcd common output s[1:16] output lcd segment output note: (ph) - pull high; absolute maximum ratings supply voltage vdd - vss..........................0 to 5v input voltage vin.................................v ss to vdd operating temperature top .............-10 c to 60 c storing temperature tst ...................-40 c to 70 c comments stress above those listed under } absolute maximum ratings? may cause permanent damage to the device. these are stress rating only. functional operation of this device at these or any other conditions above those indicated in the opera tional sections of this specification is not impli ed and exposure to absolute maximum rating conditio ns for extended periods may affect device reliability. d.c. electrical characteristics (gnd = 0v, vdd = 1.5v, ta = 25 c unless otherwise specified) parameter symbol min. typ. max. unit conditions supply voltage vdd 2.4 3.0 3.6 v operating current idd - 5 9 a no load osc. built-in cap cd - 20 - pf osc. trimmer cap ctrim 5 - 35 pf frequency stability ^f/f - - 10 ppm vdd=3.0 buzzer output current ib 500 - - a vbd-vss=0.5 lcd frequency flcd - 64 - hz segment current is 0.15 - - a vseg=0.2v common current ic 3.0 - - a vcom=0.2v
lsi LS6027 4 pad coordinate pad x( ? m) y( ? m) pad x( ? m) y( ? m) gnd vcap vee v512 c3 c2 c1 s1 s2 s3 s4 s5 s6 s7 s8 s9 s10 s11 s12 s13 s14 s15 s16 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1295.0 -1303.0 -1163.0 -1023.0 -883.0 -1394.0 -1251.0 -1110.0 -965.0 -825.0 -685.0 -545.0 -400.0 -260.0 -120.0 +20.0 +160.0 +300.0 +440.0 +580.0 +720.0 +860.0 +1000.0 +1140.0 +1350.0 +1350.0 +1350.0 +1350.0 pb r2 r1 r0 osco osci t1 gnd b1 b0 vdd t2 xt7 xt6 xt5 xt4 xt3 kset khr kmin xt8 xt9 xt10 xt11 -743.0 -593.0 -449.0 -225.0 -75.0 +1105.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1246.0 +1350.0 +1350.0 +1350.0 +1350.0 +1350.0 +1340.0 +1340.0 +1140.0 +988.0 +678.0 +543.0 +395.0 +226.0 +78.0 -70.0 -216.0 -365.0 -513.0 -661.0 -809.0 -957.0 -1105.0 -1253.0 -1400.0
lsi LS6027 5 pad location
lsi LS6027 6 application circuit
lsi LS6027 7 lcd drawing s16 s15 s14 s13 s12 s11 s10 s9 s8 s7 s6 s5 s4 s3 s2 s1 c1:3c 3g 3e 3d 2c 2g 2e 2d 1c 1g 1e 1d h6 m6 h9 m9 c2:3b 3a 3f pm 2b 2a 2f : 1b 1a 1f 0bc h5 m5 h8 m8 c3:h3 m3 h2 m10 m2 h1 m1 h12 m12 h11 m11 h10 h4 m4 h7 m7 note: pin out at top of the lcd pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 sx c3 c2 c1 s1 s2 s3 s4 s13 s5 s6 s7 s8 s9 s10 s11 s12 s14 s15 s16 c1 / / c1 m9 h9 m6 h6 3d 1d 1e 1g 1c 2d 2e 2g 2c 3e 3g 3c c2 / c2 / m8 h8 m5 h5 pm 0bc 1f 1a 1b : 2f 2a 2b 3f 3a 3b c3 c3 / / m7 h7 m4 h4 m10 h10 m11 h11 m12 h12 m1 h1 m2 h2 m3 h3
lsi LS6027 8 pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 sx c3 c2 c1 s1 s2 s3 s4 s13 s5 s6 s7 s17 s8 s9 s18 s10 s11 s12 s14 s19 s15 s16 c1 / / c1 m9 h9 m6 h6 3d 1d 1e 1g / 1c 2d / 2e 2g 2c 3e / 3g 3c c2 / c2 / m8 h8 m5 h5 pm 0bc 1f 1a / 1b : / 2f 2a 2b 3f / 3a 3b c3 c3 / / m7 h7 m4 h4 m10 h10 m11 h11 al m12 h12 be m1 h1 m2 h2 m m3 h3
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