SL1814 SIEMENS | Alldatasheet
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SIEMENS AKTIENGESELLSCHAF 4?E D MM 8235605 00265906 S MESIEG SIEMENS DL 1814 4.31 -112” Red, 8-Digit 17-Segment ALPHANUMERIC Intelligent Display® With Memory/Decoder/Driver u . FE Package Dimensions in inches (mm) 22 = “1 40- s af fr Be —— - & jippy ipo ma ia a ees cr) te = eo em a nt ne — te Wu alte ee FEATURES fe a a * 0.112” x 0.088” Magnified Monolithic Character i meee * Rugged Solid Plastic Encapsulated Package * Wide Viewing Angie 140°, Both Axis Maximum Ratings * Fast Access Time, 525 ns Voltage, Any Pin Respect * Direct Access to each Digit Independently & Operating Temperature... . -40°C to +85°C Asynchronously Storage Temperature . . wee . . ~40°C to + 100°C * 17th Segment for Improved Punctuation Marks Maximum Solder Temperature, 1.59 mm (0.063”) © Display Blank Function * End-Stackable, Eight Character Package * Intensity Coded for Display Uniformity Optical Characteristics (100% brightness, The DL 1814 is an 8-digit module. Each digit has 16 j : segments plus a decimal segment and a bult-in CMOS Denice to Device Intensity Matching (one bin) .1.5:1.0 max. The integrated circutt contains memory, ASCII character vewno Angie (Off normal axis) 440° generator, and LED multiplexing and dhive cirourtry. Inputs fonzontal «sess 25 eee eee seen 40° are TTL compatible A single 5 volt power supply is re- Vertical .. 2. 26. se votre reese ees £40 quired. Data entry is asynchronous and random access. A display system can be built using any number of DL 1814s since each character in any DL 1814 can be addressed independently and will continue to display the character last written untl it is replaced by another 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. 2-21
STEMENS AKTIENGESELLSCHAF 4?E D MM 8235605 0026907 ? MSIEG . T-41-37 TOP VIEW 26. “ Pin Function Pin Function f 2 |B! Date mul | fo ew 2/01 Data input 15 NO PIN aaa 3 |D2 Data input 16 NO PIN 4 | 03 Data input 7 NO PIN _—— 7 |D6 Data input 20 NO PIN 8 | GND 21 NO PIN 9 | AO Address 22 NO PIN 10 | At Address 23 NO PIN W A2 Address 24 NO PIN CO 12 |WR wot 25 NO PIN Tess 567 8 91 IT 13 | vec 26 CE (Chip Enable) DC CHARACTERISTICS lect 8 Digits on 130 | 156 120 as | 102 | mA | Voc=5V 10 segments/digit loc Blank(?) 25 20] 35 20 | mA | Voc=5V, BL=08V I (all inputs) 75 | 110 55 | yA | Vi=O8V, Voc=5 V Pm TT os Ton To Tv rece veo v Notes 1 Measured at 5 sec AC CHARACTERISTICS Guaranteed Minimum Timing Parameters @Voo=45 V [ Parameter Symbol T= 40°C (ns) [+ 25°C (ns) +85°C (ns) Chip Enable Set Up Time [Toes J 00] asco Address Set Up Time Chip Enable Hold Time Address Hold Time Wite Delay Time [two J ttc 20 [wnetme i tw i amd Data Set Up Time Data Hold Time [Aecesstime to tc ses ars Notes 1 “Off Axis Viewing Angle’ 1s here defined as “the minimum angle in any TIMING CHARACTERISTICS direction from the norma to the aisplay surface at which any part of any seve crue mueronas segment in the display ts not visible ~
2 Ths display contains a CMOS integrated circu Normal CMOS handling i) a a
precautions should be taken to avoid damage due to high stalic voltages | Tees ot Torn be or electnc fields. See Appnote 18 V+ or V-) Tas ts Taw ol
4 Warning: Do not use solvents contaring alcohol iin GD aaemnan
5 Voc=50 VDC + 10% a Re |
6 Access time 1s defined a8 Tas + Toy (sum of address set up and data Two w=
7 Vec=45 V, worst case for all timing parameters: peo
STEMENS AKTIENGESELLSCHAF 4?E D Ml 8235605 0026908 9 MBSIEG T-41-37 DISPLAY BLANKING CHARACTER SET Blanking the display may be accomplished by loading a See blank or space into each digit of the display or by using Na ee eee the (BL) display blank input. a play ip ssososossf P| eee Setting the (BL) input low does not affect the contents of eb T TS |" [al Si @al 7 either data. A flashing display can be realized by pulsing ae iid RAE ee Pe i A flashing circurt can easily be constructed using a 555 a t 5 5 28 which varying R11 (100K ~10K) will have a flash rate T= = Z ene fies): | felals[ = a =| ee roine: prgmencurronnne ak [a ABC) DIE FIG USING A 555 a BC | Be v i rlalwly Al 45V Lia {A lw my fas rm Tr : rok [|e] Re/S | Fu] |e | vor bee [x[¥ iz [es] 3] [| Ls i: OUTPUT BLOCK DIAGRAM Rt fl i } © (LI z= = } S3- ql h Sg. LT ql }. SB Our H* s3- } Se Cl se. LOADING DATA ssn | brett proms Loading data into the DL1814 1s straightforward, The desired @ ull] _ data and chip enable should be present and stable during 2 a write pulse, No synchronization is necessary, and each oan Deconer FS character will continue to be displayed until it is replaced ME with another. Multiple displays will require an external Ew | decoder IC connected to the chip enable input. | $3} Setting the chip enables CE to its true state will enable data eH 288 loading. The desired data code (DO-D6) and digit address i A oe (Ao, Ar. Az) must be held stable during the write cycle for storing new data. Data entry may be asynchronous and w! om random. (Digit 0 is defined as night hand digit with Ad oy (Ag=Ay =Ag=0) 3 TYPICAL LOADING DATA STATE TABLE DIGIT BL_CE WR AZ A1 AO D6 DS D4 03 02 D1 OO| 7 6 5 4 3 2 14 O H x H x x x PREVIOUSLY LOADED DISPLAY Ss 1 — M E N s Ho H[ XI} x{[ x} x] xyexPxpx]xpxyx]{sfrflefmyeln|s HoLefefetefyef Hye} ecfyefafyeulH]sfrlelmyeln]s Ho cletepeta} wy ec} a] cf} aH}eolH]sfrye;myetnfu Ho LP eyetaA yey Rye} uy Hf} Hfpeofye}sfryefmyeteyu Ho cfeftetH}afRHfef ey ef epHfelsfryelmyieyefu Ho LCi e}H]Poe;et Hye} ey ecfateulH]sfryefe};e}eyu Ho cyUelH} oC }A] RH] ec} H} ct H} clue] sfrfofe}e}efu H L L H H L H L L H H L L $s L U E B L U H cC}e}H Ha] Hfet ch clot ate }eyetufyeteyelu L x H x x x BLANK DISPLAY H LILI LJ HJHP HELP LELL HEH TH] BTL Uuleta@titriu H t{[e{x{|x {x SEE CHARACTER CODE SEE CHARACTER SET 3-23 DL 1614
SIEMENS AKTIENGESELLSCHAF 47E D MM 8235605 0026909 0 M@BSIEG T-41-37 ELECTRICAL AND MECHANICAL An alternative to soldering and cleaning the display modules CONSIDERATIONS 1s to use sockets Naturally, 26 pin DIP sockets 960” wide with 100” centers work well for single displays Multiple display assemblies are best handled by longer SIP sockets VOLTAGE TRANSIENT SUPPRESSION or DIP sockels when available for uniform package align- is highly recommended that the display and the 4 ment Socket manufacturers are Aries Electronics, Inc., components that interface with the display be powered by Frenchtown, Nd: Garry Manufactunng, New Brunewack, No the same supply to avoid logic inputs higher than Voc Robinson-Nugent, New Albany, IN; and Samtec Electronic Additionally, the LEDs may cause transients in the power Hardware, New Albany. IN INS supply line while they change display states. Common prac- J . tice Is to place .01 uF capacitors close to the displays across For further information refer to Appnote 22 in the current Voc and GND, one for each display, and one 10 pF Siemens Optoelectronic Data Book capacitor for every second display OPTICAL CONSIDERATIONS ESD PROTECTION The 112" high characters of the DL 1814 allow readability The metal gate CMOS IC of the DL 1814 1s extremely up to six feet Proper filter selection will allow the user to immune to ESD damage It is capable of withstanding build a display that can be utilized over this distance discharges greater than 3 KV However, users of these Filters allow the user to enhance the contrast ratio between devices are encouraged to take all the standard pre- a lit LED and the character background This will maximize Cautions, normal for CMOS components, These include discrimination of different characters as perceived by the Properly grounding personnel, tools, tables, and transport display user The only limitation is cost The cost/benefit ratio carners that come in contact with un-shielded parts Where for titer be erayamoad to th +5 benefit by frst these conditions are not, or cannot be met, keep the leads for fiters can be maximized to the user's benefit by fi considering the ambient lighting envronment of the device shorted together or the parts in anti-static packaging Incandescent (with almost no green) or fluorescent (with almost no red) lights do not have the flat spectral response SOLDERING CONSIDERATIONS of sunlight Plastic band-pass filters are inexpensive and The DL 1814 can be hand soldered with SN63 solder using effective in optimizing contrast ratios. The DL 1814 1s a a grounded iron set to 260°C standard red display and should be matched with a long Wave soldering 1s also possible following these conditions. daria Stee of muliple cotors (usin oat aim range. For Preheat that does not exceed 93°C on the solder side of Sisolans)’ ny ‘9 plays), neutral density grey fiers offer the best the PC board or a package surface temperature of 85°C. compromise Water soluble organic acid flux (except carboxylic acid) or resin-based RMA flux without alcohol can be used Additional contrast enhancement can be gained through Wave temperature of 245°C 45°C with a dwell between 15 shading the displays, Plastic banckpass {fers with puttin sec. to 30 sec. Exposure to the wave should not exceed P up i temperatures above 260°C, for 5 seconds at 0.063” below Pras tes Ca Oe ne He an eeNe 7 : coatings to reduce glare The trade-off is “fuzzy” characters re Seating plane The packages should not be immersed in Mounting the filters close to the display reduces this effect Care should be taken not to overheat the plastic fiers by POST SOLDER CLEANING PROCEDURES allowing for proper air flow. The least offensive cleaning solution 1s hot D.| water (60°C) Optimal fiter enhancements for any condition can be gain- for less than 15 minutes. Addition of mild saponifiers 1s ed through the use of circular polanzed, ant-reflective, acceptable. Do not use commercial dishwasher detergents. band-pass fiters The circular polarizing further enhances ht that travels through the fitter For faster cleaning, solvents may be used Care should be contrast by reducing the lig exercised in choosing these as some may chemically attack and reflects back off the display to less than 19% the nylon package Maximum exposure should not exceed Several filter manufacturers supply quality filter materials two minutes at elevated temperatures Acceptable solvents Some of them are Panelgraphic Corporation, W. Caldwell, are TF (trichlorotnfluoroethane), TA, 111 Trichloroethane, and NJ, SGL Homalte, Wilmington, DE; 3M Company, Visual unheated acetone Products Division, St Paul, MN, Polaroid Corporation, Polanzer Division, Cambndge, MA, Marks Polanzed Corpo- Unacceptable solvents contain alcohol, methanol, methylene chionde ethanol, TP36 TCM, TMC, TMS, TE. and TES ration, Deer Park, NY, Hoya Optics, Inc , Fremont, CA. Since many commercial moxtures exist, you should contact One last note on mounting fiers recessing display and your solvent vendor for chemical composition information bezel assemblies is an inexpensive way to provide a Some major solvent manufacturers are Allied Chemical Cor- shading effect in overhead lighting situations, Several Bezel poration, Specialty Chemical Division, Morstown, NJ, manufacturers are: R.M F, Products, Batavia, IL, Nobex Baron-Blakeslee, Chicago, IL; Dow Chemical, Midland, Ml; Components, Gnifith Plastic Corp , Burlingame, CA; Photo El. DuPont de Nemours & Co., Wilmington, DE Chemical Products of California, Santa Monica, CA, I.E.E~ For further information refer to Appnotes 18 and 19 in the Atlas, Van Nuys, CA. current Siemens Optoelectronic Data Book Refer to Siemens Appnote 23 for further information Dr were 2-24