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tft color lcd module NL6448BC20-08 document no. en0442ej1v0ds00 (1st edition) date published july 1999 p printed in japan 17 cm (6.5 type), 640 480 pixels 262144 colors, high luminance, wide viewing angle data sheet 1999 description NL6448BC20-08 is a tft (thin film transistor) active matrix color liquid crystal display (lcd) comprising amorphous silicon tft attached to each signal electrode, a driving circuit and a backlight. NL6448BC20-08 has a built-in backlight. backlight includes long-life lamps and the lamps are replaceable. the 17 cm diagonal display area contains 640 480 pixels and can display 262144 colors simultaneously. NL6448BC20-08 is suitable for industrial application use, because the luminance is high, and the viewing direction is selectable with display scan select. features ? high luminance (300 cd/m 2 , typ.) ? low reflection ? wide viewing angle with retardation film (antiglare treatment) ? display reverse scan function ? 6-bit digital rgb signals ? edge type backlight with long-life-lamps (two lamp holders, inverter-less) ? variable luminance control ? recommended inverter (part no. 65pwb31) ? compatible to the mounting holes position of nl6448ac20-06 except for inverter. applications ? measuring instruments ? display terminals for control system ? monitors for process controller
data sheet en0442ej1v0ds00 2 NL6448BC20-08 structure and functions a color tft (thin film transistor) lcd module is comprised of a tft liquid crystal panel structure. lsis for driving the tft array, and a backlight assembly. the tft panel structure is created by sandwiching liquid crystal material in the narrow gap between a tft array glass substrate and a color filter glass substrate. after the driver lsis are connected to the panel, the backlight assembly is attached to the backside of the panel. rgb (red, green, blue) data signals from a source system is modulated into a form suitable for active matrix addressing by the onboard signal processor and sent to the driver lsis which in turn addresses the individual tft cells. acting as an electro-optical switch, each tft cell regulates light transmission from the backlight assembly when activated by the data source. by regulating the amount of light passing through the array of red, green, and blue dots, color images are created with clarity.
data sheet en0442ej1v0ds00 3 NL6448BC20-08 block diagram 100 w r0-r5 100 w g0-g5 100 w b0-b5 digital signal processor 47 w clk 100 w h sync 100 w v sync 47 k w 100 w de dps lcd timing controller v cc 47 k w v cc power supply circuit lsis (vcci: 3.3 v) drivers gnd (sg) frame (fg) level shift v-driver 480 lines 1920 lines tft lcd panel h: 640 3 (r, g, b) v: 480 h-driver ? ? ? ? ?
data sheet en0442ej1v0ds00 4 NL6448BC20-08 (1) in case of use nec recommended inverter inverter v dd b brtl brth gndb backlight (part no. 65pwb31) (2) in case of use the inverter of customers vh lamp vl lamp vl vh backlight outline of characteristics (at room temperature) display area 132.48 (h) 99.36 (v) mm drive system a-si tft active matrix display colors 262144 number of pixels 640 480 pixel arrangement rgb vertical stripe pixel pitch 0.207 (h) 0.207 (v) mm module size 178.8 (h) 126.8 (v) 11.0 typ. (d) mm weight 240 g (typ.) contrast ratio 250:1 (typ.) viewing angle (more than the contrast ratio of 10:1) ? horizontal : 50 (typ. left side, right side) ? vertical : 35 (typ. up side), 45 (typ. down side) designed viewing direction ? wider viewing angle with contrast ratio : up side (12 oclock, reverse scan) : down side (6 oclock, normal scan) ? wider viewing angle without image reversal: up side (12 oclock, normal scan) : down side (6 oclock, reverse scan) palarizer pencil-hardness 2h (min. at jis k5400) color gamut 42% (typ. center to ntsc) response time 16 ms (typ.) white to black luminance 300 cd/m 2 (typ.) signal system 6-bit digital signals for each of rgb primary colors, synchronous signals (hsync, vsyc), dot clock (clk) supply voltage 5.0 v (3.3 v) (logic, lcd driving) backlight edge light type: two fluorescent lamps (cold cathode type) power consumption 5.0 w (typ., at 300 cd/m 2 , not include inverter less)
data sheet en0442ej1v0ds00 5 NL6448BC20-08 general specifications item specifications unit module size 178.8 0.5 (h) 126.8 0.5 (v) 11.5 max. (d) mm display area 132.48 (h) 99.36 (v) mm number of pixels 640 (h) 480 (v) pixel dot pitch 0.069 (h) 0.207 (v) mm pixel pitch 0.207 (h) 0.207 (v) mm pixel arrangement rgb (red, green, blue) vertical stripe - display colors 262144 color weight 260 (max.) g absolute maximum ratings parameter symbol rating unit remarks v cc - 0.3 to 6.5 v supply voltage v dd - 0.3 to 6.5 v input voltage v i - 0.3 to v cc + 0.3 v ta = 25 c v i - v cc < 3.0 lamp voltage v l 1600 v rms - storage temp. t st - 25 to 70 c - operating remp. t op 0 to 60 c module surface note 95% relative humidity ta 40 c 85% relative humidity 40 < ta 50 c humidity (no condensation) rh absolute humidity shall not exceed ta = 50 c, 85% relative humidity level. ta > 50 c note measured at the display area electrical characteristics (1) logic, lcd driving ta = 25 c parameters symbols min. typ. max. unit. remarks supply voltage v cc 4.75 (3.0) 5.0 (3.3) 5.25 (3.6) v - logic input l voltage v il 0 - v cci 0.3 v logic input h voltage v ih v cci 0.7 - v cc v cmos level note 2 supply current i cc - 200 note 1 (320) 450 (600) ma v cc = 5.0 v (v cc = 3.3 v) notes 1. checker flag pattern (in eiaj ed-2522) 2. v cci = 3.3 v : v cci is given by dc/dc converter in the lcd module.
data sheet en0442ej1v0ds00 6 NL6448BC20-08 (2) backlight ta = 25 c parameters symbols min. typ. max. unit. remarks lamp current i l 2.0 5.0 6.0 marms with one lamp lamp voltage v l - 400 - vrms - -- 720 ta = 0 c lamp turn on voltage v s -- 590 vrms ta = 25 c oscillator frequency f t 50 54 58 khz note note recommended value of f t ?f t is within the specification. and ? f t = 1 4th th n : hsync period : a natural number (1, 2, 3, ) (2n ?1) if f t is out of the recommended value, interference between f t frequency and hsync frequency may cause beat on the display. supply voltage sequence v cc signal 0 v 4.75 v (3.0 v) 4.75 v (3.0 v) t < 150 ms 0 < t < 35 ms 0 < t < 35 ms power-on power-off valid 0 v *1 the supply voltage for input signals should be the same as v cc . *2 apply v dd b within the lcd operation period. when the backlight turns on before lcd operation or the lcd operation turns off before the backlight turn off, the display may momentarily become white. *3 when the power is off, please keep whole signals (hsync, vsync, clk, de, and data) low level or high impedance.
data sheet en0442ej1v0ds00 7 NL6448BC20-08 interface pin connection module side connector mating connector cn31 il-310-t31pb-vf (no. 1 to 31) il-310-t31s-vf supplier: japan aviation electronics or industry limited (jae) df9-31s-1v or df9m-31s-1r supplier: hirose electric co., ltd (1) 6-bit interface signals, power supply pin no. symbols function pin no. symbols function 1 gnd ground 17 g4 green data 2 clk dot clock 18 g5 green data (msb) 3 hsync horizontal synchronous 19 gnd ground 4 vsync vertical synchronous 20 b0 blue data (lsb) 5 gnd ground 21 b1 blue data 6 r0 red data (lsb) 22 b2 blue data 7 r1 red data 23 b3 blue data 8 r2 red data 24 b4 blue data 9 r3 red data 25 b5 blue data (msb) 10 r4 red data 26 gnd ground 11 r5 red data (msb) 27 de data enable 12 gnd ground 28 v cc power supply 13 g0 green data (lsb) 29 v cc power supply 14 g1 green data 30 n.c. non-connection (open) 15 g2 green data 31 dps scan direction select 16 g3 green data notes 1. v cc : all v cc terminals should be connected to v cc . 2. dps: normal scan is l or open. and reverse scan is h. 3. during the operation, do not change the operation mode: e.g. scan direction. lsb : least significant bit msb: most significant bit
data sheet en0442ej1v0ds00 8 NL6448BC20-08 (2) inverter <2-1> in case of use nec recommended inverter ? inverter side connector 1 mating connector 1 cn1 il-z-6pl-smty il-z-6s-s125c3 supplier: japan aviation electronics industry limited (jae) pin no. symbols function pin no. symbols function 1 gndb backlight ground 4 v dd b power supply 2 gndb backlight ground 5 brtl luminance control input 3v dd b power supply 6 brth luminance control input ? inverter side connector 2 mating connector 2 (lamp side) cn2 and cn3 sm02 (8.0) b-bhs-tb bhr-03vs-1 supplier: j.s.t trading company, ltd. pin no. symbols function 1 vh high voltage terminal 2 n.c. non-connection 3 gndb backlight ground notes 1. a way of luminance control by a variable resistor brtl brth r mating variable resistor minimum luminance (50%) maximum luminance (100%) : 10 k w 5% : r = 0 w : r = 10 k w 2. a way of luminance control by a voltage the range of input voltage between brth and gndb is as follows. minimum luminance (50%) : 1.5 v maximum luminance (100%): 1.9 v
data sheet en0442ej1v0ds00 9 NL6448BC20-08 3. connector location lcd module upper side cn31 to cn2 or cn3 to cn2 or cn3 lower side 3 2 1 1 3 ? ? ? 31 2 4 ? ? ? 30 3 2 1 cn3 cn1 cn2 recommended inverter inverter 1 2 3 4 5 6 (part no. 65pwb31)
data sheet en0442ej1v0ds00 10 NL6448BC20-08 <2-2> in case of use the inverter of customers ? module side connector mating connector cn2 and cn3: bhr-03vs-1 cn2 and cn3: sm03 (4.0) b-bhs-1-tb supplier: j.s.t trading company. ltd. supplier: j.s.t trading company.ltd. pin no. symbols function 1 vh high voltage terminal (the cable color is white.) 2 n.c. non-connection 3 vl low voltage terminal (the cable color is gray.) lcd module upper side cn31 to cn2 or cn3 to cn2 or cn3 lower side 3 2 1 1 3 ? ? ? 31 2 4 ? ? ? 30 pin descriptions symbols functions logic descriptions vsync vertical sync. negative vertical synchronous signal hsync horizontal sync. negative horizontal synchronous signal clk dot clock negative timing signal for display data. the video signal is sampled at the falling edge of dotclk. r0 to r5 g0 to g5 b0 to b5 display data positive 6 bits digital signals for each of rgb primary colors. de data enable signal positive data enable signal back-porch (thb and tvb) can be changed when de is high. dont fix de = low, if not, the display will have un-uniformity. dps scan direction select - note v cc power supply - +5.0 v (+3.3 v) gnd ground - logic ground for v cc note dps: dps changes display scan direction. gnd or open = normal scan v cc = reverse scan see 7-8. display position about another way for reversible scan.
data sheet en0442ej1v0ds00 11 NL6448BC20-08 display colors vs. input data signals (1) 6-bit interface signals data signals (0: low level, 1: high level) display colors r5 r4 r3 r2 r1 r0 g5 g4 g3 g2 g1 g0 b5 b4 b3 b2 b1 b0 basic colors black 000000 000000 000000 blue 000000 000000 111111 red 111111 000000 000000 magenta 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 green 000000 111111 000000 cyan 000000 111111 111111 yellow 111111 111111 000000 white 111111 111111 111111 red grayscale black 000000 000000 000000 000001 000000 000000 dark 000010 000000 000000 - bright 111101 000000 000000 111110 000000 000000 red 111111 000000 000000 green grayscale black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 000000 000001 000000 dark 000000 000010 000000 - bright 000000 111101 000000 000000 111110 000000 green 000000 111111 000000 blue grayscale black 000000 000000 000000 000000 000000 000001 dark 000000 000000 000010 - bright 000000 000000 111101 000000 000000 111110 blue 000000 000000 111111 note colors are developed in combination with 6 bit signal (64 steps in grayscale) of each primary red, green, and blue color. this process can result in up to 262144 (64 64 64) colors.
data sheet en0442ej1v0ds00 12 NL6448BC20-08 input signal timing (1) input signal specifications parameters symbols min. typ. max. unit remarks frequency 1/tc 21.0 25.175 29.0 mhz 39.722 ns (typ.) duty tch/tc 0.4 0.5 0.6 -- clk rise, fall tcrf -- 10 ns - 30.0 31.778 33.6 m s period th - 800 - clk 31.468 khz (typ.) display period thd - - 25.422 640 - - m s clk - front-porch thf - 0 0.636 16 - - m s clk - pulse width thp - 10 3.813 96 - - m s clk - back-porch thb - 5 1.907 48 - - m s clk - *) thp + thb 64 144 - clk - clk-hsync timing thch 12 -- ns - hsync-clk timing thcs 8 -- ns - hsync-vsync timing tvh 15 -- ns - vsync-hsync timing tvs 15 -- ns - hsync rise, fall thrf -- 10 ns - 16.1 16.683 17.2 ms period tv - 525 - h 59.94 hz (typ.) display period tvd - - 15.253 480 - - ms h - front-porch tvf - 1 0.381 12 - - ms h - pulse width tvp - 2 0.063 2 - - ms h - back-porch tvb - 4 0.985 31 - - ms h - *) tvp + tvb 6 33 - h - vsync rise, fall -- 10 ns - clk-data timing tds 8 -- ns - data-clk timing tdh 12 -- ns - data r0 to r5 g0 to g5 b0 to b5 rise, fall tdrf -- 10 ns - de-clk timing tes 8 -- ns clk-de timing teh 12 -- ns de rise, fall terf -- 10 ns - note all parameters should be kept within the specified range.
data sheet en0442ej1v0ds00 13 NL6448BC20-08 (2) definition of input signal timing vsync display period de tv tvp tvb tvf note 1 tvd hsync display period th thp thb thf note 1 thd de notes 1. display period does not exist as signals. 2. set the total of thp + thb and tvp + tvb as the table of input signal timing, otherwise display position is shifted to right or left side, or to up or down side.
data sheet en0442ej1v0ds00 14 NL6448BC20-08 v cci 0.5 clk v il v ih v cci 0.5 (g0 to g5) v il v ih v cci 0.5 de v il v ih v cci 0.5 clk v cci 0.5 hsync v il v ih v cci 0.5 hsync v cci 0.5 vsync v il v ih tc tch tcrf tcrf tds tdh tdrf tdrf terf terf tes teh tes teh thch thcs thrf tvh tvs tvrf (r0 to r5) (b0 to b5) data invalid invalid v ih = v cci 0.7 (min.) v il = v cci 0.3 (max.) v cci = 3.3 v: v cci is given by dc/dc converter in the lcd module.
data sheet en0442ej1v0ds00 15 NL6448BC20-08 (3) input signal timing chart hsync de g0 to g5 de hcync clk de vsync tvp tvb 480h (fixed) 1h tvf thp thb 640clk (fixed) 1clk thf r0 to r5 b0 to b5 g0 to g5 r0 to r5 b0 to b5 g0 to g5 r0 to r5 b0 to b5 123 1 invalid d (x, 0) d (x, y) d (x, 479) invalid (note: x = 0 to 639) invalid d (0, y) d (1, y) d (x, y) d (638, y) d (639, y) invalid 12 1 invalid d (0, y) d (1, y) invalid d (639, y) (note: y = 0 to 479)
data sheet en0442ej1v0ds00 16 NL6448BC20-08 display position normal scan: dps = l (factory set) d (0, 0) d (1, 0) d (x, 0) d (638, 0) d (639, 0) d (0, 1) d (1, 1) d (x, 1) d (638, 1) d (639, 1) d (0, y) d (1, y) d (x, y) d (638, y) d (639, y) d (0, 478) d (1, 478) d (x, 478) d (638, 478) d (639, 478) d (0, 479) d (1, 479) d (x, 479) d (638, 479) d (639, 479) reverse scan: dps = h d (639, 479) d (638, 479) d (x, 479) d (1, 479) d (0, 479) d (639, 478) d (638, 478) d (x, 478) d (1, 478) d (0, 478) d (639, y) d (638, y) d (x, y) d (1, y) d (0, y) d (639, 1) d (638, 1) d (x, 1) d (1, 1) d (0, 1) d (639, 0) d (638, 0) d (x, 0) d (1, 0) d (0, 0) note below drawings show relations between the scan direction and the viewing direction. cn 31 cn 31 normal scan reverse scan d (0, 0) d (639, 0) d (0, 479) d (639, 479) d (0, 0) d (639, 0) d (0, 479) d (639, 479)
data sheet en0442ej1v0ds00 17 NL6448BC20-08 optical characteristics ta = 25 c note 1 parameters symbols conditions min. typ. max. unit remarks contrast ratio cr note 2 150 250 -- note 3 luminance lu note 2 250 300 - cd/m 2 note 4 luminance uniformity - max./min. -- 1.25 - note 5 reference data parameters symbols conditions min. typ. max. unit remarks t on white to black - 16 40 ms response time t off black to white - 55 90 ms note 6 color gamut c at center, to ntsc 35 42 - % - - - - q x + cr > 10, q y = 0 45 50 - deg. horizontal q x - cr > 10, q y = 0 45 50 - deg. q y + cr > 10, q x = 0 30 35 - deg. viewing angle range vertical q y - cr > 10, q x = 0 40 45 - deg. note 7 notes 1. v cc = 5.0 v, il = 5.0 ma rms, with nec recommended inverter (part no.65pwb31). 2. viewing angle: q x = 0 , q y = 0 , at center. best contrast angle: q x = 0 , q y = - 10 , at center. 3. the contrast ratio is calculated by using the following formula. luminance with all pixels in white contrast ratio (cr) = luminance with all pixels in black the luminance is measured in darkroom. 4. the luminance is measured after 20 minutes from the module works, with all pixels in white. typical value is measured after luminance saturation. 1 photodetector (topcon bm-5a) 50 cm lcd module
data sheet en0442ej1v0ds00 18 NL6448BC20-08 5. the luminance uniformity is calculated by using following formula. maximum luminance luminance uniformity = minimum luminance the luminance is measured at near the five points shown below. (160) column line (320) (480) (120) (240) (360) 1 2 3 4 5 6. definition of response time is as follows. photodetector output signal is measured when the luminance changes white to black. response time is the time between 10% and 100% of the photodetector output amplitude. 0% 10% 100% 90% ton toff white black time display color luminance range 7. definitions of viewing angle are as follows. left right lower perpendicular upper 12 o?lock x+ x q q q y+ q y
data sheet en0442ej1v0ds00 19 NL6448BC20-08 reliability test no. test items test conditions judgement 1. high temperature/humidity operation 50 2 c, 85% relative humidity 240 hours display data is black. note 1 2. high temperature (operation) 60 3 c 240 hours display data is black. note 1 3. heat cycle (operation) <1> 0c 3c 1 hour 55c 3c 1 hour <2> 50 cycles, 4 hours/cycle <3> display data is black. note 1 4. thermal shock (non-operation) <1> C25c 3c 30 minutes 70c 3c 30 minutes <2> 100 cycles <3> temperature transition time within 5 minutes note 1 5. vibration (non-operation) <1> 5 - 100 hz, 2g 1 minute/cycle, x, y, z direction <2> 120 times each direction note 1 note 2 6. mechanical shock (non- operation) <1> 55 g, 11 ms x, y, z direction <2> 5 times each direction note 1 note 2 7. esd (operation) 150 pf, 150 w , 10 kv 9 places on a panel note 3 10 times each place at one-second intervals note 1 8. dust (operation) 15 kinds of dust (jis z 8901) hourly 15 seconds stir, 8 times repeat note 1 notes 1. display function is checked by the same condition as lcd module out-going inspection. 2. physical damage. 3. discharge points are shown in the figure.
data sheet en0442ej1v0ds00 20 NL6448BC20-08 general cautions next figures and sentence are very important, please understand these contents as follows. caution this figure is a mark that you will get hurt and/or the module will have damages when you make a mistake to operate. this figure is a mark that you will get an electric shock when you make a mistake to operate. this figure is a mark that you will get hurt when you make a mistake to operate caution (1) caution when taking out the module <1> pick the pouch only, when taking out the module from a carrier box. (2) cautions for handling the module <1> as the electrostatic discharges may break the lcd module, handle the lcd module with care against electrostatic discharges. <2> as the lcd panel and backlight element are made from fragile glass material, impulse and pressure to the lcd module should be avoided. <3> as the surface of polarizer is very soft and easily scratched, use a soft dry cloth without chemicals for cleaning. <4> do not pull the interface connectors in or out while the lcd module is operating. <5> put the module display side down on a flat horizontal plane. <6> handle connectors and cables with care. <7> when the module is operating, do not lose clk, hsync, or vsync signal. if any one or more of these signals is lost, the lcd panel would be damaged. <8> the torque for mounting screw should never exceed 0.20 nm (2 kgfcm). (3) cautions for the atmosphere <1> dew drop atmosphere must be avoided. <2> do not store and/or operate the lcd module in high temperature and/or high humidity atmosphere. storage in an electro-conductive polymer packing pouch and under relatively low temperature atmosphere is recommended. <3> this module uses cold cathod fluorescent lamps. therefore, the life time of lamp becomes short conspicuously at low temperature. <4> do not operate the lcd module in high magnetic field. (4) caution for the module characteristics <1> do not apply any fixed patterns data signal to the lcd module at product aging. applying fixed pattern for a long time may cause image sticking. <2> this module has the retardation film which may cause the variation of the color hue in the different viewing angles. the ununiformity may appear on the screen under the high temperature operation.
data sheet en0442ej1v0ds00 21 NL6448BC20-08 (5) other cautions <1> do not disassemble and/or reassemble lcd module. <2> do not readjust variable resistors nor switches etc. <3> when returning the module for repair or etc, pack the module not to be broken. we recommend the original shipping packages. liquid crystal display has the following specific characteristics. there are not defects nor malfunctions. the display condition of the lcd module may be affected by the ambient temperature. the lcd module uses cold cathode tube for backlighting. optical characteristics, like luminance or uniformity, will change during time. uneven brightness and/or small spots may be noticed depending on different display patterns.
data sheet en0442ej1v0ds00 22 NL6448BC20-08 outline drawing/front side (unit in mm) module center made in japan es8c10004 k1028b2015035 98.12.18/ NL6448BC20-08 (46.95) 3.3?.3 2.5?.3 7.6?.5 3.3?.3 2.5?.3 172?.3 172?.3 (3.4) (86) 178.8?.5 (86) 96?.3 front view active area center 4- 2.8 mounting hole (15.4) (48) 126.8?.5 98?.3 (49) (14.4) 2.5?.3 3.3?.3 (9.3) 11.5 max. 2.5?.3 (1) 3.3?.3 7.6?.5 (7.8) (10.1) f
data sheet en0442ej1v0ds00 23 NL6448BC20-08 outline drawing/rear side (unit in mm) the tft color lcd panel contains cold cathode flourescent lamps. please follow local ordinances or regulations for its disposal k1028b2015035 name 65blm04 o * * * - * pal no. nion voltege caution (20.4) (66.4) (9.2) (9.7) (9.2) (169) (9.75) 112 10 112 10 (4.35) (4.35) (17.95) (17.95) i/f connector bhr-03vs-1 (jst) i/f connector il-310-t31p-vf (jae) i/f connector bhr-03vs-1 (jst) (20.4) rear view risk of electric shock. disconnect the electric power before service. notes 1. not shown tolerances of the dimensions are 0.5 mm. 2. the value in parenthese are for reference.
NL6448BC20-08 data sheet no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec corporation. nec corporation assumes no responsibility for any errors which may appear in this document. nec corporation does not assume any liability for infringement of patents. copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. no license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec corporation or others. while nec corporation has been making continuous effort to enhance the reliability of its electronic components, the possibility of defects cannot be eliminated entirely. to minimize risks of damage or injury to persons or property arising from a defect in an nec electronic components, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. nec devices are classified into the following three quality grades: standard, special, and specific. the specific quality grade applies only to devices developed based on a customer designated quality assurance program for a specific application. the recommended applications of a device depend on its quality grade, as indicated below. customers must check the quality grade of each device before using it in a particular application. standard: computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots special: transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) specific: aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. the quality grade of nec devices is standard unless otherwise specified in necs data sheets or data books. if customers intend to use nec devices for applications other than those specified for standard quality grade, they should contact an nec sales representative in advance. anti-radioactive design is not implemented in this product.

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