IS15AACP4CF Version (1) DISTINCTIVE CHARACTERISTICS Enhanced LED Illumination with: • Broad and even light distribution • Consistent bright backlighting • Lower energy consumption Programmable LC Display Red/Green 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 SPST normally open Electrical Capacity (Resistive Load) 100mA @ 12V DC Contact Resistance 200 milliohms maximum @ 20mV 10mA Insulation Resistance 100 megohms minimum @ 100V DC Dielectric Strength 125V AC for 1 minute minimum Mechanical Endurance 1,000,000 operations minimum Electrical Endurance 1,000,000 operations minimum Operating Force 2.2 ± 0.5 Newtons Total Travel 1.8mm (.071”) Operating Temperature Range 0°C ~ +40°C (+32°F ~ +104°F); contact factory for wide temperature range options Storage Temperature Range –10°C ~ +60°C (+14°F ~ +140°F); contact factory for wide temperature range options NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 1 SMARTSWITCH TM LCD SPECIFICATIONS Characteristics of Display Display Operation Mode STN positive Display Condition Transflective with built-in LED backlight Viewing Angle Adjustable Driving Method 1/24 duty. 1/5 bias (built-in driving circuit) Viewing Area 15.0mm x 10.8mm (horizontal x vertical) Pixel Format 36 x 24 dots (horizonal x vertical) Pixel Size 0.36mm x 0.36mm (horizontal x vertical) Backlight LED Red/Green Red/Green Bicolor LED with Yellow LCD Mode Absolute Maximum Ratings (Temperature at 25°C) Recommended Operating Conditions (Temperature at 25°C) Items Symbols Ratings ItemsSymbols Minimum Typical Maximum Supply Voltage for Logics VDD – 0.3V to +7.0V Supply Voltage for Logics V DD 4.5V 5.0V 5.5V Supply Voltage for LCD VL C – 0.3V to +12.0V Supply Voltage Yellow V LC –– 7.4V –– Input Voltage VI – 0.3V to VDD +0.3V Input Voltage V I 0V –– V DD Output Voltage VO – 0.3V to VDD +0.3V Driving Frequency f FL M –– 64Hz –– DC Characteristics of LCD Drive IC (Temperature at 0°C to 40°C and VDD = 5.0V ±10%) Items Symbols High Level Input Voltage Test Conditions Minimum Typical Maximum Unit VI H 0.7 VDD VDD V Low Level Input Voltage VI L 0 0.3 VDD V High Level Input Leakage Current I LIH VI = VDD 10 μA –10 μA Low Level Input Leakage Current I LIL VI = 0V High Level Output Voltage VOH I O H = –500μA VDD – 0.5 Low Level Output Voltage VOL I O L = 500μA 0.5 V μA V High Level Output Leakage Current I LO H VO = VDD 10 Low Level Output Leakage Current I LO L VO = 0V –10 μA Supply Current I D D f SCP = 1.0MHz 500 μA LCD Drive Current I LC f LP = 2.4kHz VLC = 7.3V ~ 7.5V 2,000 μA Timing Characteristics of LCD Drive IC Timing Diagram (Temperature at 0°C to 40°C and VDD = 5.0V ±10%) Items Symbols Minimum Maximum Clock Operation Frequency f S CP Latch Pulse Frequency f L P Clock High Level Pulse Width t CWH 70ns Clock Low Level Pulse Width t CWL 70ns Data Setup Time t DSD 45ns Data Hold Time t DHD 50ns Data Output Delay Time t PDO Latch Setup Time t DSL 50ns Latch Hold Time t DHL 50ns Latch High Level Width t LW H 200ns FLM Setup Time t DSF 50ns FLM Hold Time t DHF 50ns SCP, LP Rise/Fall Time t r/t f 500 6.0MHz 50kHz tr SCP Din tCWH tCWL tDSD tf tDHD tPDO *1 Dout 25ns LP FLM 15ns *2 tDSL tr *3 tLWH tDSF tDHL tf tDHF *1 Last data on first line *2 Beginning data on second line *3 Location of LP signal on first line NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 2 SMARTSWITCH TM BLOCK DIAGRAM & PIN CONFIGURATIONS 6 8 9 Pin No. seg1 Timing Control LP seg36 Segment Driver CK 40bit Latch CK 40bit D Shift RegisterQ Din 4 Dout 2 SW 3 BL-LED (– ) 13 BL-LED (– ) GND SW 12 36 x 24 Dot Matrix LCD Panel Com24 7 FLM SCP Com1 5 Common Driver 10 D 24bit CK Shift Register 11 V LC V DD 1 BL-LED (+) Symbol Name Function 1 SW Terminal of Switch Normally open 2 SW Terminal of Switch Normally open 3 BL-LED (–) Terminal of Backlight LED Cathode: green 4 Dout Data Output 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. 5 FLM First Line Marker 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). 6 LP Latch Pulse 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. 7 SCP Serial Clock Pulse Clock used by 40-bit internal shift register of the switch, shifting the display data bit presented at Din at falling edge. 8 Din Data Input 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. 9 GND 10 VDD Power Power source for logic circuit 11 VLC Power Power source for LCD drive 12 BL-LED (+) Terminal of Backlight LED Anode for common 13 BL-LED (–) Terminal of Backlight LED Cathode: Red Ground NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 3 SMARTSWITCH TM STANDARD LED SPECIFICATIONS Typical Electrical Characteristics (Temperature at 25°C) Symbols Red/Green Unit Forward Current Backlight Color IF 15/15 mA Forward Voltage VF 2.1/2.2 V ABSOLUTE MAXIMUM FOR LEDS Electrical Characteristics (Temperature at 25°C) Backlight Color Red/Green Unit Forward Current Symbols IF 20 mA Reverse Voltage VR 4.0 V Current Reduction Rate Above 25°C ∆ I F (D C) – 0 .26 mA/°C Power Dissipation* PD 130 maximum 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 (17.78) .700 See Standoff Detail 13 12 (9.33) .367 (10.8) .425 (17.78) .700 (12.5) .492 (7.62) .300 4 (13.5) .531 (20.59) .811 3 (0.6) Typ .024 (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. (12.7) .500 13x (0.8) ~ (1.0) Dia .031 .039 (17.78) .700 (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 5 3 Standoff Detail 2 8 6 4 1 (1.25) Typ .049 (2.5) .098 Pixel Detail 12 10 (2.5) .098 (12.7) .500 (7.62) .300 (17.78) .700 2x (0.9) Dia .035 Landless Footprint PRECAUTIONS FOR HANDLING & STORAGE Handling 1. 2. 3. 4. 5. 6. 7. 8. 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. The IS Series devices are electrostatic sensitive. ATTENTION ELECTROSTATIC Limit operating force to keytop to 100.0N maximum, as excessive pressure may damage LCD device. SENSITIVE DEVICES Recommended soldering time and temperature limits are 5 seconds maximum @ 270°C maximum. Do not exceed 60°C at the LCD level. The IS series devices are not process sealed. If the LCD is accidentally broken, avoid contact with the liquid and wash off any liquid spills to the skin or clothing. 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: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 4