LS6055 LSI 7 Digit World Time Watch Features * 7 digit LCD display * Hour:Minute Second display * Month Date weekday display * Alarm with Chime * 32 World time display. * DST function * 2/3 keys operation * 12/24Hour display * * * * * 1/2 bias 1/3 duty LCD format Built in EL driver. Very low power consumption 32768 Crystal oscillator Single 3.0V operation. General Description The LS6055 is a 7 digit LCD watch I.C. with Hour:Minute Second, Month Date weekday display. It support 12H/24 H display format and has a time alarm and hourly chime function. It has built-in world time display of 32 major city. DST function for all cities can be enable/disabled individually. It can support 2/3 keys operation : KM, KS, KR. It has built-in EL driver controlled by KEL. LCD Display H 4 M2 P H 4 M2 P Version 0.2(15.02.01) LSI LS6055 H 4 M2 P H 4 M2 P H 4 M2 P H 4 M2 P H 4 M2 P H 4 M2 P 2 Version 0.2 (15.02.01) LSI LS6055 Bonding option BOP GND VDD Description 3 key operation : KM, KS, KR + KEL 2 key operation : KM, KS + KEL Operation Modes The LS6055 has 4 modes – Clock, Date, World time and Alarm Mode. By pressing KM, it is shift from one mode to another as follow : Time Mode => Date Mode => World time Mode=> Alarm Mode => Time Mode…. In Date Mode, the 6055 display current Month Date, and Weekday. In Alarm Mode, the 6055 display the Alarm time. Time Mode In Time Mode , the LS6055 display the current time information, Hour, Minute, Second. display the ON/OFF status of Alarm and Chime and 12Hr/24Hr format. It also In Time Mode, press KR to toggle between 12HR and 24Hr display format (if 3 key is used). Set Mode At TIME mode, press KS to enter Set mode as follow: TIME SET ALARM/CHIME ENABLE/DISABLE SET ALARM HOUR SET ALARM MINUTE SET WEEKDAY SET MONTH SET DATE SET HOUR SET MINUTE RESET SECOND TIME Press KM to adjust the setting value. In Setting Mode, press KR to exit from setting mode and go to Time Mode. If alarm time is adjusted, press KS will go to TIME mode after setting ALARM MINUTE. 12H/24H can be selected during SET HOUR SECOND can only be reset. 3 Version 0.2 (15.02.01) LSI LS6055 World Time Mode In World Time Mode, if 3 key is used (BOP==GND), press KR to review different time zone, press KS to enter World Time Setting Mode . The setting sequence is : World Time DST ON/OFF World time Hour World time Minute World time Mode. (press KM to set the value). In World Time Mode, if 2 key is used (BOP==VDD), press KS to review different time zone. Press KS over 2 second enters World Time Setting Mode . The setting sequence is : World Time DST ON/OFF World time Hour World time Minute World time Mode. (press KM to set the value). EL Output When KEL is pressed, R0,R1 provide the waveform to drive external EL circuit, the EL delay is around 2 – 3 second. The R0, R1 output waveform is as follows : 4 Version 0.2 (15.02.01) LSI LS6055 Oscillator Trim Capacitor The 32kHz crystal is connected across pad OI and OO when external trim capacitor is used. The OI15PF can be used instead of OI which use internal capacitor of around 10-15pf. ALL SEGMENT ON When power up, the system will turns on all LCD segment for 2 – 3 seconds. 32 World Time is built-in the LS6055 as: ZONE HNL ANC LAX DEN CHI NYC CCS RIO LON PAR AMS FRA CAI JRS JED MCW THR DXB KBL KHI DEL DAC RGN BKK HKG PEK TPE TYO ADL SYD NOU WLG RELATIVE TO GMT -10 -9 -8 -7 -6 -5 -4 -3 0 +1 +1 +1 +2 +2 +3 +3 +3 1/2 +4 +4 1/2 +5 +5 1/2 +6 +6 1/2 +7 +8 +8 +8 +9 +9 1/2 +10 +11 +12 Honolulu Los Angeles Denver Chicago, Mexico City New York, Toronto Rio de Janeiro London Paris Amsterdam Frankfurt Cairo Moscow Kabul Karachi New Delhi Bangkok Hong Kong Beijing Taipei Tokyo Sydney Wellington 5 Version 0.2 (15.02.01) LSI LS6055 Pin Assignment DESIGNATION B [0:1] VC1, VC2 VEE T2, T1 OO OI VDD GND I0-I5 R[0:1] C[1:3] S[1:28] TYPE DESCRIPTION OUTPUT OUTPUT OUTPUT INPUT (PL) OUTPUT INPUT POWER POWER INPUT(PL) OUTPUT OUTPUT OUTPUT Buzzer output Halfer output Halfer voltage TEST pin oscillator output oscillator input +3.0V power supply Ground Input key Motor Output LCD Common output LCD Segment output Note: (PL) – pull low (PH) - pull high Absolute Maximum Ratings Supply voltage Vdd - Vss..........................0 to 5V Input voltage Vin.................................Vss 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 operational sections of this specification is not implied and exposure to absolute maximum rating conditions for extended periods may affect device reliability. D.C. Electrical Characteristics (GND = 0V, Vdd = 3.0V, Ta = 25°C unless otherwise specified) Parameter Supply Voltage Operating current OSC. built-in cap Buzzer output current LCD frequency Segment current Common current R[0:1] output current Symbol Vdd Idd Cd Ib Flcd Is Ic Ir Min. 2.5 500 0.15 3.0 0.8 6 Typ. 3.0 3 15 64 - Max. 3.6 6 - Unit V µA pF µA Hz µA µA mA Conditions No load Bonding option Vbd-Vss=0.5 Vseg=0.2V Vcom=0.2V Vr-Vss=0.7 Version 0.2 (15.02.01) LSI LS6055 Pad Coordinate PAD C1 S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 S17 S18 S19 S20 S21 S22 S23 S24 S25 X(µ µm) -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -1408.20 -570.50 -436.50 -238.70 -104.70 93.10 227.10 406.20 540.20 674.20 808.20 PAD S26 S27 S28 C3 C2 I4/BOP I5 I0/KM I1/KS I2/KR I3/KEL VDD B0 T2 T1 B1 GND OI OI 15pF OO R0 R1 PB VC1 VC2 VEE Y(µ µm) 506.10 372.10 238.10 104.10 -29.90 -163.90 -297.90 -431.90 -565.90 -699.90 -833.90 -967.90 -1101.90 -1235.90 -1369.90 -1503.90 -1513.90 -1513.90 -1513.90 -1513.90 -1513.90 -1513.90 -1513.90 -1513.90 -1513.90 -1513.90 7 X(µ µm) 942.20 1076.20 1210.20 1344.20 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1408.00 1400.30 1400.30 184.00 -56.30 -425.20 -561.20 -1045.70 -1179.70 -1313.70 Y(µ µm) -1513.90 -1513.90 -1513.90 -1513.90 -1287.00 -1151.00 -741.60 -597.60 -188.20 -44.20 365.20 509.20 653.20 797.20 941.20 1085.20 1229.20 1423.00 1513.00 1499.30 1499.30 1499.30 1499.30 1499.30 1499.30 1499.30 Version 0.2 (15.02.01) LSI LS6055 Pad Location 8 Version 0.2 (15.02.01) LSI LS6055 Application Circuit 9 Version 0.2 (15.02.01) LSI LS6055 LCD Drawing 10 Version 0.2 (15.02.01) LSI LS6055 ====================== SIG| COM1| COM2| COM3 ====================== C3 | | | C3 C2 | | C2 | C1 | C1 | | S1 | CC | CB | CA S2 | CF | CE | CD S3 | CI | CH | CG S4 | CL | CK | CJ S5 | CO | CN | CM S6 | BC | BB | BA S7 | BF | BE | BD S8 | BI | BH | BG S9 | BL | BK | BJ S10| BO | BN | BM S11| AC | AB | AA S12| AF | AE | AD S13| AI | AH | AG S14| AL | AK | AJ S15| AO | AN | AM S16| | | S17| 4C | 4D | H24 S18| 4G | 4E | CHIME S19| 4B | 4F | *)) S20| 4A | | S21| 3C | 3D | DST S22| 3G | 3E | PM S23| 3B | 3F | CO S24| 3A | | S25| 2C | 2D | 1C S26| 2G | 2E | 1ADEG S27| 2B S28| 2A | 2F | | 1B | * S16 is not used Modification History : Version 0.2(15.02.01) Update LCD table, 32 Time Zone Table. 11 Version 0.2 (15.02.01)