BOWIN LS6055 7 digit world time watch Datasheet

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)
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