SLR2016 HIGH EFFICIENCY RED SLO2016 GREEN SLG2016 YELLOW SLY2016 RED X/Y Stackable 0.180" 4-Digit 5 x 7 Dot Matrix Alphanumeric Intelligent Display(R) Devices with Memory/Decoder/Driver Dimensions in inches (mm) 0.100 (2.54) 0.197 (3 pl.) (5.00) 0.012 (.3) .002 (.05) 0.400 .015 (10.16 .38) 0.180 (4.57) 0.300 .020 (7.62 .51) 0.784 (19.91) 0.150 (3.81) EIA Date Code Luminous Intensity Code XXYY Z Part Number 0.200 (5.08) FEATURES * Very Close Multi-line Spacing, 0.4" Centers * 0.180" 5 x 7 Dot Matrix Characters * 128 Special ASCII Characters for English, German, Italian, Swedish, Danish, and Norwegian Languages * Wide Viewing Angle: X axis 50 Maximum, Y Axis 75 Maximum * Fast Access Time, 110 ns at 25C * Full Size Display for Stationary Equipment * Built-in Memory * Built-in Character Generator * Built-in Multiplex and LED Drive Circuitry * Direct Access to Each Digit Independently and Asynchronously * Clear Function that Clears Character Memory * True Blanking for Intensity Dimming Applications * End-stackable, 4-Character Package * Intensity Coded for Display Uniformity * Extended Operating Temperature Range: -40C to +85C * Superior ESD Immunity * 100% Burned-in and Tested * Wave Solderable * TTL Compatible over Operating Temperature Range See Appnotes 18, 19, 22, and 23 at www.infineon.com/ opto for additional information. SLX2016 OSRAM Pin 1 Indicator 0.160 .020 (4.06 .51) 0.018 (.46) .100 (2.54) Non-cumulative (12 pl.) Tolerance: .010 (.25) DESCRIPTION The SLR/SLO/SLG/SLY2016 is a four digit 5 x 7 dot matrix display module with a built-in CMOS integrated circuit. This display is X/Y stackable. The integrated circuit contains memory, a 128 ASCII ROM decoder, multiplexing circuitry and drivers. Data entry is asynchronous. A display system can be built using any number of SLR/SLO/SLG/SLY2016 since each digit can be addressed independently and will continue to display the character last stored until replaced by another. System interconnection is very straightforward. Two address bits (A0, A1) are normally connected to the like-named inputs of all displays in the system. Data lines are connected to all SLR/SLO/SLG/SLY2016s directly and in parallel as is the write line (WR). The display will then behave as a write-only memory. The SLR/SLO/SLG/SLY2016 has several features superior to competitive devices. 100% burn-in processing insures that the SLR/SLO/SLG/ SLY2016 will function in more stressful assembly and use environments. True "blanking" allows the designer to dim the display for more flexibility of display presentation. Finally the CLR clear function will clear the ASCII character RAM. 2000 Infineon Technologies Corp. * Optoelectronics Division * San Jose, CA www.infineon.com/opto * 1-888-Infineon (1-888-463-4636) OSRAM Opto Semiconductors GmbH & Co. OHG * Regensburg, Germany www.osram-os.com * +49-941-202-7178 1 March 23, 2000-01 DESCRIPTION (continued) Pin Function The character set consists of 128 special ASCII characters for English, German, Italian, Swedish, Danish, and Norwegian. Pin Function Pin Function All products are 100% burned-in and tested, then subjected to out-going AQL's of .25% for brightness matching, visual alignment and dimensions, .065% for electrical and functional. 1 WR Write 8 D3 Data 2 A1 Digit Select 9 D4 Data 3 A0 Digit Select 10 D5 Data Maximum Ratings 4 VCC 11 D6 Data 5 D0 Data 12 BL Display Blank 6 D1 Data 13 CLR Clear 7 D2 Data 14 GND DC Supply Voltage .........................................-0.5 V to +7.0 Vdc Input Voltage, Respect to GND (all inputs)............................................-0.5 V to VCC +0.5 Vdc Operating Temperature .....................................-40 C to +85C Storage Temperature.......................................-40 C to +100C Relative Humidity at 85C ...................................................85% Maximum Solder Temperature, 0.063" (1.59 mm) below Seating Plane, t<5.0 s ........................................ 260C Figure 2. Timing Characteristics--Write Cycle Waveforms A0 - A1 CLR Optical Characteristics Spectral Peak Wavelength Red ...................................................................... 660 nm typ. HER ..................................................................... 635 nm typ. Green .................................................................. 565 nm typ. Yellow .................................................................. 585 nm typ. Digit Height......................................................0.180" (4.57 mm) Time Averaged Luminous Intensity (1) at VCC=5.0 V Red................................................................50 cd/LED min. HER/Yellow ...................................................60 cd/LED min. Green ............................................................75 cd/LED min. LED to LED Intensity Matching, VCC=5.0 V ........... 1.8:1.0 max. Viewing Angle (off normal axis) Horizontal ...............................................................50 max. Vertical ...................................................................75 max. 2.0 V 0.8 V TAH TAS 2.0 V 0.8 V D0 - D6 TDS TDH WR 2.0 V 0.8 V TW TACC Note: 1) Peak luminous intensity values can be calculated by multiplying these values by 7. Figure 1. Top View 14 13 Digit3 1 12 11 Digit2 2 3 10 9 Digit1 4 5 8 Digit0 6 7 DC Characteristics at 25C Parameters Min. Typ. Max. Units Conditions VCC 4.5 5.0 5.5 V -- ICC Blank -- 2.3 3.0 mA VCC=5.0 V ICC (80 dots on) -- 80 105 mA VCC=5.0 V VIL (all inputs) -- -- 0.8 V 4.5 V <VCC <5.5 V VIH (all inputs) 2.0 -- -- V 4.5 V <VCC <5.5 V IIL (all inputs) 25 -- 100 A 4.5 V <VCC <5.5 V, VIN=0.8 V 2000 Infineon Technologies Corp. * Optoelectronics Division * San Jose, CA www.infineon.com/opto * 1-888-Infineon (1-888-463-4636) OSRAM Opto Semiconductors GmbH & Co. OHG * Regensburg, Germany www.osram-os.com * +49-941-202-7178 SLR/SLO/SLG/SLY2016 2 March 23, 2000-01 An example of a simple dimming circuit using a 556 is illustrated in Figure 4. Adjusting potentiometer R3 will dim the display by changing the blanking pulse duty cycle. AC Characteristics (guaranteed minimum timing parameters at VCC=5.0 V 0.5 V) Parameter Symbol -40C +25C +85C Unit Address Set Up Time TAS 10 10 10 ns Write Time TW 60 70 90 ns Data Set Up Time TDS 20 30 50 ns Address Hold Time TAH 20 30 40 ns Data Hold Time TDH Figure 3. Flashing Circuit Using a 555 and Flashing (Blanking) Timing VCC=5.0 V (1) Access Time TACC Clear Disable Time TCLRD Clear Time TCLR 20 30 40 ns 90 110 140 ns 1.0 1.0 1.0 s 1.0 1.0 1.0 2 To BL Pin on Display 7 555 Timer 3 6 4 5 ms R2 100 K C3 10 F C4 0.01 F Note: 1) R1 4.7 K 8 1 TACC=Set Up Time + Write Time + Hold Time 1 Loading Data 0 The desired data code (D0-D6) and digit address (A0, A1) must be held stable during the write cycle for storing new data. Blanking Pulse Width 50% Duty Factor Data entry may be asynchronous. Digit 0 is defined as right hand digit with A1=A2=0. ~ ~ 500 ms ~ 2 Hz Blanking Frequency ~ Clearing the entire internal four-digit memory can be accomplished by holding the clear (CLR) low for 1.0 msec minimum. The clear function will clear the ASCII RAM. Loading an illegal data code will display a blank. Figure 4. Dimming Circuit Using a 556 and Dimming (Blanking) Timing Typical Loading State Table VCC=5.0 V WR A1 A0 D6 D5 D4 D3 D2 D1 D0 Digit H previously loaded display 3 2 1 0 G R E Y Dimming (Blanking) Control R2 47 K R1 200 1 14 2 13 L L L H L L L H L H G R E E L L H H L H L H L H G R U E L H L H L L H H L L G L U E 3 L H H H L L L L H L B L U E 4 L L H H L L L H L H B L E E L L L H L H L H H H B L E W L X X see character code C2 0.01 F C1 4700 pF see char. set 556 Dual Timer 12 R3 500 K C3 1000 pF 11 5 10 6 9 7 8 C4 0.01 F To BL Pin on Display Display Blanking Blank the display by loading a blank or space into each digit of the display or by using the (BL) display blank input. Setting the (BL) input low does not affect the contents of data memory. 1 A flashing circuit can easily be constructed using a 555 as table multivibrator. Figure 3 illustrates a circuit in which varying R1 (100K~10K) will have a flash rate of 1.0 Hz~10 Hz. 0 ~ ~ 200 s ~ 5 KHz Blanking Frequency ~ The display can be dimmed by pulse width modulating the (BL) at a frequency sufficiently fast to not interfere with the internal clock. The dimming signal frequency should be 2.5 kHz or higher. Dimming the display also reduces power consumption. 2000 Infineon Technologies Corp. * Optoelectronics Division * San Jose, CA www.infineon.com/opto * 1-888-Infineon (1-888-463-4636) OSRAM Opto Semiconductors GmbH & Co. OHG * Regensburg, Germany www.osram-os.com * +49-941-202-7178 Blanking Pulse Width 4 s min., 196 s max. SLR/SLO/SLG/SLY2016 3 March 23, 2000-01 Figure 5. Character Set D0 D1 D2 D3 D6 D5 D4 HEX ASCII CODE 0 0 0 0 0 0 1 1 0 1 0 2 0 1 1 3 1 0 0 4 1 0 1 5 1 1 0 6 1 1 1 7 0 0 0 0 0 1 0 0 0 1 0 1 0 0 2 0 0 1 0 4 1 1 0 0 3 1 0 1 0 5 0 1 1 0 6 1 1 0 1 B 0 1 0 1 A 1 0 0 1 9 0 0 0 1 8 1 1 1 0 7 0 0 1 1 C 1 0 1 1 D 0 1 1 1 E 1 1 1 1 F Notes: 1. High=1 level 2. Low=0 level 3. Upon power up, the device will initialize in a random state. Figure 6. Block Diagram Display Rows 0 to 6 3 Row Control Logic & Row Drivers OSC 2 1 0 Columns 0 to 19 / 128 Counter /7 Counter Timing and Control Logic CLR Row Decoder 7 Bit ASCII Code RAM Memory 4 X 7 Bit Latches D6 D5 D4 D3 D2 D1 D0 Column Decoder RAM Read Logic Display Output Logic ROM Column Data 128 X 7 Bit ASCII Character Decode (4.48K Bits) Address Bus WR A0 A1 BL Write Address Decoder 2000 Infineon Technologies Corp. * Optoelectronics Division * San Jose, CA www.infineon.com/opto * 1-888-Infineon (1-888-463-4636) OSRAM Opto Semiconductors GmbH & Co. OHG * Regensburg, Germany www.osram-os.com * +49-941-202-7178 SLR/SLO/SLG/SLY2016 4 March 23, 2000-01 Design Considerations For further information refer to Appnotes 18 and 19 at www.infineon. com/opto. For details on design and applications of the SLX2016 in multiple display systems, refer to Appnote 15 at www.infineon.com/ opto. An alternative to soldering and cleaning the display modules is to use sockets. Standard pin DIP sockets .300" wide with .100" centers work well for single displays. Multiple display assemblies are best handled by longer SIP sockets or DIP sockets when available for uniform package alignment. Socket manufacturers are Aries Electronics, Inc., Frenchtown, NJ; Garry Manufacturing, New Brunswick, NJ; Robinson-Nugent, New Albany, IN; and Samtec Electronic Hardware, New Albany, IN. Electrical & Mechanical Considerations Voltage Transient Suppression We recommend that the same power supply be used for the display and the components that interface with the display to avoid logic inputs higher than VCC. Additionally, the LEDs may cause transients in the power supply line while they change display states. The common practice is to place .01 mF capacitors close to the displays across VCC and GND, one for each display, and one 10 F capacitor for every second display. For further information refer to Appnote 22 at www.infineon.com/ opto. Optical Considerations ESD Protection The .180" high characters of the SLX2016 gives readability up to eight feet. Proper filter selection enhances readability over this distance. The CMOS IC of the SLX2016 is resistant to ESD damage and capable of withstanding discharges less than 2.0 kV. However, take all the standard precautions, normal for CMOS components. These include properly grounding personnel, tools, tables, and transport carriers that come in contact with unshielded parts. If these conditions are not, or cannot be met, keep the leads of the device shorted together or the parts in anti-static packaging. Filters enhance the contrast ratio between a lit LED and the character background intensifying the discrimination of different characters.The only limitation is cost. Take into consideration the ambient lighting environment for the best cost/benefit ratio for filters. Incandescent (with almost no green) or fluorescent (with almost no red) lights do not have the flat spectral response of sunlight. Plastic band-pass filters are an inexpensive and effective way to strengthen contrast ratios.The SLR2016 is a standard red display and should be matched with long wavelength pass filter in the 600 nm to 620 nm range. Soldering Considerations The SLX2016 can be hand soldered with SN63 solder using a grounded iron set to 260C. Wave soldering is also possible following these conditions: Preheat that does not exceed 93C on the solder side of the PC board or a package surface temperature of 85C. Water soluble organic acid flux (except carboxylic acid) or rosin-based RMA flux without alcohol can be used. The SLO2016 is a high efficiency red display and should be matched with a long wavelength pass filter in the 470 nm to 590 nm range. The SLG/SLY2016 should be matched with a yellowgreen band-pass filter that peaks at 565 nm. For displays of multiple colors, neutral density gray filters offer the best compromise. Wave temperature of 245C 5C with a dwell between 1.5 sec. to 3.0 sec. Exposure to the wave should not exceed temperatures above 260C for five seconds at 0.063" below the seating plane. The packages should not be immersed in the wave. Additional contrast enhancement is gained by shading the displays. Plastic band-pass filters with built-in louvers offer the next step up in contrast improvement. Plastic filters can be improved further with anti-reflective coatings to reduce glare. The trade-off is fuzzy characters. Mounting the filters close to the display reduces this effect. Take care not to overheat the plastic filter by allowing for proper air flow. Post Solder Cleaning Procedures The least offensive cleaning solution is hot D.I. water (60C) for less than 15 minutes. Addition of mild saponifiers is acceptable. Do not use commercial dishwasher detergents. Optimal filter enhancements are gained by using circular polarized, anti-reflective, band-pass filters. Circular polarizing further enhances contrast by reducing the light that travels through the filter and reflects back off the display to less than 1%. For faster cleaning, solvents may be used. Carefully select any solvent as some may chemically attack the nylon package. Maximum exposure should not exceed two minutes at elevated temperatures. Acceptable solvents are TF (trichorotrifluorethane), TA, 111 Trichloroethane, and unheated acetone. Several filter manufacturers supply quality filter materials. Some of them are: Panelgraphic Corporation, W. Caldwell, NJ; SGL Homalite, Wilmington, DE; 3M Company, Visual Products Division, St. Paul, MN; Polaroid Corporation, Polarizer Division, Cambridge, MA; Marks Polarized Corporation, Deer Park, NY, Hoya Optics, Inc., Fremont, CA. Note: Acceptable commercial solvents are: Basic TF, Arklone, P. Genesolv, D. Genesolv DA, Blaco-Tron TF, Blaco-Tron TA, and Freon TA. One last note on mounting filters: recessing displays and bezel assemblies is an inexpensive way to provide a shading effect in overhead lighting situations. Several Bezel manufacturers are: R.M.F. Products, Batavia, IL; Nobex Components, Griffith Plastic Corp., Burlingame, CA; Photo Chemical Products of California, Santa Monica, CA; I.E.E.-Atlas, Van Nuys, CA. Unacceptable solvents contain alcohol, methanol, methylene chloride, ethanol, TP35, TCM, TMC, TMS+, TE, or TES. Since many commercial mixtures exist, contact a solvent vendor for chemical composition information. Some major solvent manufacturers are: Allied Chemical Corporation, Specialty Chemical Division, Morristown, NJ; Baron-Blakeslee, Chicago, IL; Dow Chemical, Midland, MI; E.I. DuPont de Nemours & Co., Wilmington, DE. 2000 Infineon Technologies Corp. * Optoelectronics Division * San Jose, CA www.infineon.com/opto * 1-888-Infineon (1-888-463-4636) OSRAM Opto Semiconductors GmbH & Co. OHG * Regensburg, Germany www.osram-os.com * +49-941-202-7178 Refer to Appnote 23 at www.infineon.com/opto for further information. SLR/SLO/SLG/SLY2016 5 March 23, 2000-01