IS15ABFP4B
DISTINCTIVE CHARACTERISTICS
Enhanced LED Illumination with:
• Broad and even light distribution
• Consistent bright backlighting
• Lower energy consumption
Version (1)
Programmable LC Display
White LED Backlighting
Rubber Dome
Epoxy Sealed Straight PC Terminals
Programmable to display graphics, alphanumeric characters, and animated sequences.
Integrated liquid crystal display provides wide viewing angle with high contrast and clarity.
Wide viewing area 15.0mm x 10.8mm (horizontal x vertical) at 36 x 24 pixels.
Dome gives crisp tactile feedback to positively indicate circuit transfer.
High reliability and long life of one milllion actuations minimum.
Epoxy sealed terminals prevent entry of solder flux and other contaminants.
Optional accessories available to enhance panel design and simplify production process.
SWITCH SPECIFICATIONS
Circuit
Electrical Capacity (Resistive Load)
Contact Resistance
Insulation Resistance
Dielectric Strength
Mechanical Endurance
Electrical Endurance
Operating Force
Total Travel
Operating Temperature Range
Storage Temperature Range
SPST normally open
100mA @ 12V DC
200 milliohms maximum @ 20mV 10mA
100 megohms minimum @ 100V DC
125V AC for 1 minute minimum
1,000,000 operations minimum
1,000,000 operations minimum
2.2 ± 0.5 Newtons
1.8mm (.071”)
0°C ~ +40°C (+32°F ~ +104°F); contact factory for wide temperature range options
–10°C ~ +60°C (+14°F ~ +140°F); contact factory for wide temperature range options
NKK Switches • email: smartswitch@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com
1
SMARTSWITCH
LCD SPECIFICATIONS
Characteristics of Display
Display Operation Mode
Display Condition
Viewing Angle
Driving Method
Viewing Area
Pixel Format
Pixel Size
Backlight LED
FSTN positive
Adjustable
TM
Transflective with built-in LED backlight
1/24 duty. 1/5 bias (built-in driving circuit)
15.0mm x 10.8mm (horizontal x vertical)
36 x 24 dots (horizonal x vertical)
0.36mm x 0.36mm (horizontal x vertical)
White
White LED with
Black & White LCD Mode
Absolute Maximum Ratings
(Temperature at 25°C)
Items
Supply Voltage for Logics
Supply Voltage for LCD
Input Voltage
Output Voltage
Symbols
V
DD
V
LC
V
I
V
O
Ratings
– 0.3V to +7.0V
– 0.3V to +12.0V
– 0.3V to V
DD
+0.3V
– 0.3V to V
DD
+0.3V
Recommended Operating Conditions
(Temperature at 25°C)
Items
Supply Voltage for Logics
Supply Voltage Black/White
Input Voltage
Driving Frequency
Symbols
V
DD
V
LC
V
I
f
FL M
Minimum
4.5V
––
0V
––
Typical
5.0V
7.3V
––
150Hz
Maximum
5.5V
––
V
DD
––
DC Characteristics of LCD Drive IC
(Temperature at 0°C to 40°C and V
DD
= 5.0V ±10%)
Items
High Level Input Voltage
Low Level Input Voltage
High Level Input Leakage Current
Low Level Input Leakage Current
High Level Output Voltage
Low Level Output Voltage
High Level Output Leakage Current
Low Level Output Leakage Current
Supply Current
LCD Drive Current
Symbols
V
IH
V
IL
I
LIH
I
LIL
V
OH
V
OL
I
LO H
I
LO L
I
DD
I
LC
V
I
= V
DD
V
I
= 0V
I
O H
= –500μA
I
O L
= 500μA
V
O
= V
DD
V
O
= 0V
f
SCP
= 1.0MHz
f
LP
= 2.4kHz V
LC
= 7.3V ~ 7.5V
500
V
DD
– 0.5
0.5
10
–10
500
2,000
Test Conditions
Minimum
0.7 V
DD
0
Typical
Maximum
V
DD
0.3 V
DD
10
–10
Unit
V
V
μA
μA
V
V
μA
μA
μA
μA
Timing Characteristics of LCD Drive IC
(Temperature at 0°C to 40°C and V
DD
= 5.0V ±10%)
Items
Clock Operation Frequency
Latch Pulse Frequency
Clock High Level Pulse Width
Clock Low Level Pulse Width
Data Setup Time
Data Hold Time
Data Output Delay Time
Latch Setup Time
Latch Hold Time
Latch High Level Width
FLM Setup Time
FLM Hold Time
SCP, LP Rise/Fall Time
Symbols Minimum Maximum
f
S CP
f
LP
t
CWH
t
CWL
t
DSD
t
DHD
t
PDO
t
DSL
t
DHL
t
LW H
t
DSF
t
DHF
t
r
/t
f
50ns
50ns
200ns
50ns
50ns
15ns
70ns
70ns
45ns
50ns
25ns
6.0MHz
50kHz
Timing Diagram
t
r
SCP
Din
Dout
LP
FLM
t
CWH
t
CWL
t
DSD
t
DHD
t
PDO
*1
*2
t
f
t
DSL
t
r
*3
t
LWH
t
DSF
*1 Last data on first line
*2 Beginning data on second line
*3 Location of LP signal on first line
t
DHL
t
f
t
DHF
NKK Switches • email: smartswitch@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com
2
SMARTSWITCH
D 24bit
CK Shift Register
TM
BLOCK DIAGRAM & PIN CONFIGURATIONS
Com1
Common Driver
11
10
V
LC
V
DD
FLM
SCP
LP
36 x 24 Dot Matrix
LCD Panel
Com24
seg1
seg36
5
7
Timing Control
Segment Driver
6
CK
40bit Latch
8
9
Din
GND
SW
1
CK 40bit
D Shift RegisterQ
4
Dout
2
SW
12
13
BL-LED (+)
3
BL-LED (– )
BL-LED (+)
Pin No.
1
2
3
4
5
6
7
8
Symbol
SW
SW
BL-LED (–)
Dout
FLM
LP
SCP
Din
Name
Terminal of Switch
Terminal of Switch
Terminal of Backlight LED
Data Output
First Line Marker
Latch Pulse
Serial Clock Pulse
Data Input
Function
Normally open
Normally open
Cathode
Display serial output. Can be used to connect to Din of the next SMARTSWITCH. As a result,
many SMARTSWITCHES can be controlled with one clock and data signal.
The marking signal for the first line data of LCD display. The first line of LCD will be selected
by the falling edge of LP signal during the high level (FLM).
Line data latch pulse will latch content of internal 40-bit shift register at falling edge for one
line of display. LP will also increment the display line by one.
Clock used by 40-bit internal shift register of the switch, shifting the display data bit presented
at Din at falling edge.
Display serial data bit. Note: to map the display data, because of the difference between the
number of internal shift register data (40) and the single line of LCD pixels (36), the first four
bits of data shifted will be dummy bits.
Power source for logic circuit
Power source for LCD drive
Anode for common
Anode
9
10
11
12
13
GND
V
DD
V
LC
BL-LED (+)
BL-LED (+)
Ground
Power
Power
Terminal of Backlight LED
Terminal of Backlight LED
NKK Switches • email: smartswitch@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com
3
SMARTSWITCH
SUPER BRIGHT LED SPECIFICATIONS
Backlight Color
Forward Current
Forward Voltage
Symbols
I
F
V
F
TM
Typical Electrical Characteristics
(Temperature at 25°C)
White
20
3.6
Unit
mA
V
ABSOLUTE MAXIMUM FOR LEDS
Electrical Characteristics
(Temperature at 25°C)
Backlight Color
Forward Current
Reverse Voltage
Current Reduction Rate Above 25°C
Power Dissipation*
Symbols
I
F
V
R
∆I
F
(DC )
P
D
White
30
5.0
– 0 .50
120 maximum
Unit
mA
V
mA/°C
mW
*For uniform light emission, Power Dissipation should not exceed the Absolute Maximum Rating.
TYPICAL SWITCH DIMENSIONS
See Pixel Detail
Part No.
(15.0)
.591
(14.01)
.552
See Standoff
Detail
(9.33)
.367 (10.8)
.425
(0.6) Typ
.024
(17.78)
.700
13
12
(13.5)
.531
(20.59)
.811
(17.78)
.700
(7.62)
.300
4
3
(12.5)
.492
(16.0)
.630
(23.13)
.911
(10.5)
.413
(2.5)
.098
(12.5)
.492
(3.2)
.126
(2.8)
.110
(1.25) Typ
.049
Terminal numbers are
not on the switch.
(17.78)
.700
(12.7)
.500
(2.5)
.098
13x (0.8) ~ (1.0) Dia
.031 .039
2
(0.36) Sq
.014
(0.03) Typ
.001
(0.3)
.012
(0.6)
.024
(0.75) Dia
.030
(1.8) Dia
.071
(12.5)
.492
13
11
9
7
12
10
8
6
4
5
3
1
(7.62)
.300
(17.78)
.700
(1.25) Typ
.049
(2.5)
.098
(12.7)
.500
2x (0.9) Dia
.035
Landless
Pixel Detail
Standoff Detail
Footprint
PRECAUTIONS FOR HANDLING & STORAGE
Handling
1. The VLC voltage should not be applied before logic voltage. If VLC voltage is present before logic voltage, it may cause the driver
logic to freeze and damage the LCD, and the driver logic itself may become damaged.
ATTENTION
2. The IS Series devices are electrostatic sensitive.
ELECTROSTATIC
SENSITIVE DEVICES
3. Limit operating force to keytop to 100.0N maximum, as excessive pressure may damage LCD device.
4. Recommended soldering time and temperature limits are 5 seconds maximum @ 270°C maximum.
5. Do not exceed 60°C at the LCD level.
6. The IS series devices are not process sealed.
7. If the LCD is accidentally broken, avoid contact with the liquid and wash off any liquid spills to the skin or clothing.
8. Clean cap surface with dry cloth. If further cleaning is needed, wipe with dampened cloth using neutral cleanser and dry with
clean cloth. Do not use organic solvent.
Storage
1. Store away from direct sunlight.
2. Keep away from static electricity.
3. Avoid extreme temperatures, high humidity, gaseous substances, and all forms of chemical contamination.
NKK Switches • email: smartswitch@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com
4
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