MIK7089I-XX
6 Functions 6 Digit Alarm-
Chronograph Duplexed LCD
Watch Circuit
November 2001
Features
Single chip CMOS construction
Drives 6 digit duplexes LCD with 7 day mark,
AM/PM mark, date mark and alarm mark
Colon display
32,768 Hz Crystal frequency
On-chip oscillator and resistors
On-chip voltage doubler (MIK7089I-00, MIK7089I-01)
Single 1.5V (MIK7089I-00, MIK7089I-01) or 3.0V
(MIK7089I-10, MIK7089I-11)
battery operation
Low power dissipation
Debounce circuitry on switch inputs
Protection against static discharge
Trimmer capacitor included Speaker output without a
transistor (MIK7089I-00, MIK7089I-10)
Functions
6 Function: Month, Date, Day-of-Week, Hour,
Minute, Second
Alarm function with 4 to 5 minute snooze
6 Digit chronograph: Autoranging after 30 minutes to hour,
minute, second
User selectable 12 hour/24 hour format
Alarm output for melody IC (KS5310, KS5381,
KS5318 series)
4 Year calendar
One touch correction of time error within
30 seconds
Fast advance for time and alarm time set
Chime on every hour
3 switch sequential operation
LCD test
Reset on power-on or by pressing the AC button
Electrical Characteristics MIK7089I-00, MIK7089I-01
(T
a
= 25
o
C, V
DD
= 0 V, V
SS
= -1.5 V; unless otherwise specified)
Characteristic Symbol Test
Condition Min
Typ
Max
Units
V
SS
1.2
1.5
1.8
V
Operating Voltage
V
EE
2.4
3.0
3.6
V
Supply Current
I
DD
Without Load, V
SS
=-1.5V
2.0
A
Input High Voltage
V
IH
-0.3
0 V
Input Low Voltage
V
IL
V
SS
V
SS
+0.3 V
Oscillator Start Voltage
V
OSC
Within 5 sec
1.45
V
ALA2 (MIK7089I-00)
I
OL
V
OL
= -0.4V
50
mA
ALA1 I
OH
V
OH
= -0.7V, Vss = -1.4V
-1.5
mA
ALA2 (MIK7089I-01)
I
OL
V
OL
= -0.7V, Vss = -1.4V
1.5
mA
Alarm
Driver
Current
ALB I
OL
V
OL
= -0.7V, Vss = -1.4V
20
mA
DC-DC Conversion Frequency
F
CON
C
1
= C
2
= 0.1
F
1.024 KHz
LCD Frequency
F
d
32
Hz
Time Stability
T
stb
V
SS
= -1.2
-1.8 V
3
ppm
Switch Debouncing Time
Tdeb
31.25
msec
Quartz Crystal Parameters: F
= 32768Hz, C
L
= 12.5
F, C
O
= 1.2
F, C
1
= 3.0
F
F, Rr = 35K
Electrical Characteristics 7089I-10, 7089I-11
(T
a
= 25
o
C, V
DD
= 0 V, V
SS
= -3.0 V; unless otherwise specified)
Characteristic Symbol Test
Condition Min
Typ
Max
Units
Operating Voltage
V
SS
2.4
3.0
3.6
V
Supply Current
I
DD
Without Load, V
SS
=-3.0 V
2.0
A
Input High Voltage
V
IH
-0.3
0 V
Input Low Voltage
V
IL
V
SS
V
SS
+0.3 V
Oscillator Start Voltage
V
OSC
Within 5 sec
2.4
V
ALA2 (MIK7089I-10)
I
OL
V
OL
= -1.9V
50
mA
ALA1 I
OH
V
OH
= -0.5V, Vss = -2.8V
-1.5
mA
ALA2 (MIK7089I-11)
I
OL
V
OL
= -2.3V, Vss = -2.8V
1.5
mA
Alarm
Driver
Current
ALB I
OL
V
OL
= -2.3V, Vss = -2.8V
20
mA
DC-DC Conversion Frequency
F
CON
C
1
= C
2
= 0.1
F
1.024 KHz
LCD Frequency
F
d
32
Hz
Time Stability
T
stb
V
SS
= -2.4
-3.6 V
3
ppm
Switch Debouncing Time
Tdeb
31.25
msec
Quartz Crystal Parameters: F
= 32768 Hz, C
L
= 12.5
F, C
O
= 1.2
F, C
1
= 3.0
F
F, Rr = 35K
Page 1 of 5
MIK7089I-XX
6 Functions 6 Digit Alarm-
Chronograph Duplexed LCD
Watch Circuit
November 2001
Piezo Drive Method
V
DD
L = 30 - 40 mH
V
SS
ALA1 for MIK7089I-00, MIK7089I-01,
MIK7089I-10, MIK7089I-11
or ALA2 for MIK7089I-01, MIK7089I-11
Rb = 2-10K
Piezoelectric
Transducer
KSC1008Y
V
DD
ALA2 for MIK7089I-00, MIK7089I-10
SPEAKER
V
DD
L = 30 - 40 mH
V
SS
ALA2 for MIK7089I-00, MIK7089I-10
Piezoelectric
Transducer
ALA2
Piezoelectric
Transducer
ALA1
for MIK7089I-01, MIK7089I-11
Page 2 of 5
MIK7089I-XX
6 Functions 6 Digit Alarm-
Chronograph Duplexed LCD
Watch Circuit
November 2001
Pad location 7089I-00, 7089I-01 (7089I-10, 7089I-11)
39
16
45
19
42
22
17
44
20
41
23
46
18
43
21
40
24
34
2
29
7
38
33
3
28
8
37
32
4
27
9
13
36
31
5
26
10
14
35
1
30
6
25
12
11
15
Y
(0,0)
Chi p size: 1.98 mm x 1.98 mm
Pad size: 100 m x 100 m
Substrate to V
DD
X
MIK7089I-XX
Pad
Pad name
X
Y
Pad
Pad name
X
Y
Pad
Pad name
X
Y
1 F2/E2 150
327
19
V
EE
(V
SS
) 1830 975 37
M
150
1830
2 G2/D2 150 150 20
1KO 1830 1130 38
AC
150
1665
3 B2/C2 290 150 21 CAP
(NC) 1830 1270 39
V
DD
150
1525
4
F3/E3 430 150 22
S
1830 1410 40
V
SS
150
1385
5 G3/D3 570 150 23
D
1830 1550 41 V
EE
(V
SS
) 150
1245
6 B3/C3 710 150 24
T3
1830 1690 42
ALB
150
1068
7
F4/E4 850 150 25 COM1 1830 1830 43
ALA2
150 928
8 G4/D4 990 150 26 DATE/AL 1690 1830 44
ALA1
150 788
9 B4/C4
1130
150
27 A6/SA
1550
1830
45 OO 150
638
10 F5/E5 1270
150
28 A5/FR 1410
1830
46
OI 150
487
11 G5/D5 1410
150 29 A4/TH 1270
1830
12 B5/C5 1550
150 30 A3/WE 1130
1830
13
F6/E6 1690 150 31 COL/TU 990 1830
14 G6/D6 1830 150 32
A2/MO 850 1830
15 B6/C6 1830 312 33
C1/B1 710 1830
16
T1
1830 474 34 ADEG/SU 570 1830
17 V
DD
1830 645 35 PM/AM 430 1830
18
T2
1830 820 36
COM2 290 1830
Page 5 of 5
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