IS15DSBFP4RGB Version (1) DISTINCTIVE CHARACTERISTICS Compact Size Combined with High Resolution • • • • • • • • • • • High resolution of 64 x 32 pixels 64 colors of backlighting can be controlled dynamically Pushbutton switch with LCD, RGB LED backlighting General brightness of backlight is dynamically controlled in eight steps from dark to bright Operated by commands and data supplied via serial communications (SPI) Can display as many as four lines of text with ten characters each Incorporates bitmap display function Programmable display graphics for alphanumeric characters and animated sequences Dual image VRAM for quick change of displayed images Low energy consumption Dust tight construction Viewing area: 13.0mm x 10.7mm (horizontal x vertical) Variety of LED backlighting with 64 colors and 8 steps brightness Dome gives crisp tactile feedback to positively indicate circuit transfer Epoxy sealed straight PC terminals Snap-in standoff for easy, secure mounting and alignment Actual Size DESCRIPTION Switch Description LCD Mode LED Color SPST Momentary ON Gold Contacts Straight PC Terminals Black & White FSTN Positive Red/Green/Blue LCD/LED NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 2 SMARTSWITCH TM SWITCH SPECIFICATIONS LCD SPECIFICATIONS Characteristics of Display 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 Temp Range Operating Force 1.7 ± 0.5 Newtons Storage Temp Range –20°C ~ +60°C (–4°F ~ +140°F) Total Travel 1.8mm (.071”) Backlight LED RGB: red/green/blue Symbols Ratings Supply Voltage VDD –0.3V to +7.0V Input Voltage VI –0.3V to VD D +0.3V Output Voltage VO –0.3V to VD D +0.3V Contrast Ratio Viewing Angle (Cr ≥ 1.1) Up & Down Right & Left 6 o’clock Viewing Area 13.0mm x 10.7mm (horizontal x vertical) Pixel Format 64 x 32 pixels (horizontal x vertical) Pixel Size 0.18mm x 0.24mm (horizontal x vertical) –15°C ~ +50°C (+5°F ~ +122°F) Recommended Operating Conditions Items Optical Characteristics (Temperature at 25°C) Items Viewing Angle Direction * In a low temperature environment (below 0°C), speed and contrast decrease when image changes. The non-indicator dot may become dense in a high temperature environment (about +50°C). Absolute Maximum Ratings Items Display Condition FSTN positive; background colors, black & white Transflective with built-in LED backlight Display Operation Mode Symbols Min Typical Max Cr –– 3.0 –– q f –– 90° –– –– 90° –– Symbols Min Typical Max Supply Voltage VDD 4.9V 5.0V 5.1V Input Voltage VI 0V –– VDD SPI Clock Frequency fSC K –– –– 8MHz Current Consumption I DD ** 10mA –– *** 50mA ** 10mA: Backlighting LED is off *** 50mA: Backlighting LEDs (Red, Green, Blue) are maximum brightness BLOCK DIAGRAM & PIN CONFIGURATIONS Com1......Com32 Common Driver 32bit Shift Register 64 x 32 Dot Matrix LCD Panel seg1.......seg64 Segment Driver Backlight LED Display Controller RAM #1 256Byte SS Compact High Resolution SMARTSWITCHTM with RGB LED and Black and White LCD Mode 64bit Shift Register Red Green Blue RAM #2 256Byte 8 SCK 7 SDI 6 LED Driver SPI SDO 5 VDD 4 GND 3 SW Pin No. 1 2 3 4 5 6 7 8 Symbol SW SW GND VDD SDO SDI SCK SS Name Terminal of Switch Terminal of Switch Ground Power Data Out Data In Serial Clock Slave Select 2 SW 1 Function Normally open Normally open Power source for logic circuit and LCD Data output line for SPI Data input line for SPI Clock line for SPI that synchronizes commands and data Chip select for SPI; line is active low NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 3 SMARTSWITCH TM TYPICAL SWITCH DIMENSIONS See Pixel Detail Terminal numbers are not on the switch. (13.0) .512 (16.0) .630 (0.3) Typ .012 (0.6) Typ .024 (0.2) Typ .008 Standoff 1 Standoff 2 (1.0) Typ .039 2 (8.30) (10.7) .327 .421 (18.0) .709 8 (7.62) (15.0) .300 .591 4 1 (0.4) Typ .016 (12.78) .503 (19.0) .748 (10.8) .425 (0.18) .007 (0.02) Typ .0008 (0.24) Typ .009 (0.3) .012 (1.5) .059 Standoff 2 See Standoff Detail (3.2) .126 (2.2) .087 (12.2) .480 Standoff 1 (6.15) .242 A (16.0) .630 6x (0.75) Dia .030 (1.5) .059 (2.0) Dia .079 (1.0) Typ .039 (2.0) .079 Standoff Detail 2x (0.9) Dia .035 2 8 7 6 5 4 3 (5.0) .197 Pixel Detail (2.0) .079 (6.35) .250 (1.25) .049 (0.02) Typ .0008 (5.0) .197 3 Dimension A Standoff 1 = (2.7) Standoff 2 = (2.3) .091 .106 1 (6.15) .242 (6.35) .250 (7.62) .300 (15.0) .591 4x (1.3) Dia .051 Landless Footprint TIMING SPECIFICATIONS Circuit Example SPI Characteristics (See Timing Diagram) (Temperature at –15°C ~ +50°C and VDD = 5.0V ± 2%) Items Symbols Minimum SPI_SS Set Up Time ts S S 10ns SPI_SS Hold Time th S S 10ns SPI_CLK Cycle tc yc CK SPI_CLK Width thw CK 10ns SPI_DI Set Up Time ts D I 10ns SPI_DI Hold Time th D I 10ns SPI_DO Delay Time td D O 10ns CLK_1 Maximum SCK SDI SS SCK SDI SS SCK SDI IS_1 IS_2 IS_3 SCK SDI SS SCK SDI SS SCK SDI SS IS_4 IS_5 IS_6 SCK SDI SS SCK SDI SS SCK SDI SS SS CLK_2 8MHz CLK_3 IS_7 DATA_1 SPI Timing Chart (SS Using) IS_9 DATA_3 SPI Timing Chart (SS Low Level Fixed) th SS t s SS IS_8 DATA_2 SS Low SS tcy c CK t cy c CK SCK ts DI t s DI SDI SDI t h DI D7 D6 D5 D4 D3 D2 D1 D0 th DI D7 D6 D5 D4 D3 D2 D1 D0 td DO t d DO SDO thw CK SCK t h w CK SDO D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 SDI and SCK shall be kept high when idle. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 4 SMARTSWITCH TM BITMAP Segment Common 1 2 3 4 5 6 7 8 9 • • • 16 ••••• 49 • • • 56 Byte8 Byte7 ••• Byte2 Byte1 COM1 D0 D1 D2 D3 D4 D5 D6 D7 D0 • • • D7 ••• D0 • • • D7 D0 D1 D2 D3 D4 D5 D6 D7 Byte16 Byte9 COM2 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 • • • 57 58 59 60 61 62 63 64 • • • • • • Byte256 COM32 ••• ••• Byte249 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 Transferring Display Data/Displaying LCD Command and Data Sequence Command Data (256 Bytes) 0 x 55 Byte1 Byte2 • • • Byte255 0 1 0 1 0 1 0 1 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 • • • D1 D0 Byte256 D7 D6 D5 D4 D3 D2 D1 D0 Notes: Display RAM has two screen areas. The first area is for the display on current LCD; the second area is for the data to be displayed next. The screens are changed when the second area is fully stored. COMMANDS & DATA • Transferring display data/displaying on LCD: command (1 Byte) + data (256 Bytes) • Others: command (1 Byte) + data (1 Byte) • Commands can be accepted only when all bits coincide; otherwise, they are not acknowledged • Additional commands will not be received until the communication of commands (1 Byte) and data (256 or 1 Byte) is completed • There is no time limit from the beginning to end of data receipt • Commands may be executed consecutively (no need to wait between commands) • Irregular commands or data are not recognized • Initial status at power activation: LCD display off, LED off (brightness 1/20, color off) Transferring Display Data/Displaying on LCD Command Hex Binary 0 x 55 01010101 Data Remarks 256 Bytes (64 x 32 = 2,048 bits) See above for details of bitmap data Data Remarks LED (Backlight) Color Set Command Hex Binary 0 x 40 01000000 R R G G B B 1 1 2 bits x 3 00 = off 01 = 1/4 For each of RGB: 10 = 1/2 11 = full LED (Backlight) Brightness Set Command Hex Binary 0 x 41 01000001 Data *** 1 1 1 1 1 3 bits Remarks For leading 3bits: 000 = 1/20 (dark) 100 = 1/3 001 = 1/10 101 = 1/2 010 = 1/7 110 = 2/3 011 = 1/5 111 = full (bright) Reset (Returning to Initial Status at Power Activation) Command Hex Binary 0 x 5E 01011110 Data Remarks 00000011 Returning to initial status at power activation NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkksmartswitch.com 5 SMARTSWITCH TM PRECAUTIONS FOR HANDLING & STORAGE OF LCD DEVICES ATTENTION ELECTROSTATIC SENSITIVE DEVICES Handling 1. The IS Series devices are electrostatic sensitive. 2. Limit operating force to keytop to 100.0N maximum, as excessive pressure may damage the LCD device. 3. The IS series devices are not process sealed. 4. If the LCD is accidentally broken, avoid contact with the liquid and wash off any liquid spills to the skin or clothing. 5. 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. 6. Recommended soldering time and temperature limits: 5 seconds maximum @ 270°C maximum 7. Do not exceed 60°C at the LCD level. Storage 1. Store in original container and 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 6