LC7570 SANYO | Alldatasheet

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Technical content

Features

+ 34-segment output (With pull-down resistor). - 5-step A/D converter. - The display can be forced to the off state with the BLK pin. - Data input : Serial input (CL, DATA, WR). - The program ofa controller can be used to suit the segment outputs to the pin assignment of a vacuum fluorescent display. Pin Assignments Ba eaa eee G SSE fos [25] [24] fo3] [22] [3+] foe] feo] feo] fax] (26) [es sa [eq] xc ne we [be] Bes RABRARRGRRGRRRARERR BE ss ba fa] sie FP ET) 2 9) G7 5 (9) A] GT 90) 8 (7A a) Se] BS) se [ro] fijese als [29] s20 to [ra fa] ne tc 7570 vou [43] Le7S70E tae] sza wn fed iy] see CET LAT SII TSN LETT AY TST OY TT TT TT VT TT “s Ee x “ oats a2 ESZRRRRFRAARAHRRHAAAA veo [| fr] ees Top View “Eo fa rat JARI TEITETE QR SESRERER SE Top View (unit : mm) (unit : mm) 17.2 1.6 at = i wo) 15 [| 0.35 as AAR ADR AD AN Apes J stu Py BG ApRAR AR AR AE f — ray | Ba" Es = 31.9 = = i a i oe = ES = ee eta at =| ES = SANYO: DIPG2S SA & 0.38, ant jo g JT. of 156 SANYO: QFP48E SANYO Electric Co.,Ltd. Semiconductor Business Headquarters TOKYO OFFICE Tokyo Bidg., 1-10,1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 63095TH (KOTO)/3097KI/5205MW/4214KI, TS No.1465-1/4

LC7570,7570E — SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSFSFeFeeee Absolute Maximum Ratings at Ta = 25°C, Vsg=0V unit Maximum Supply Voltage Vppmax Vpp -0.3t0+9.0 V Maximum Input Voltage Vin max CL,DATA,WR,SIN,BLK —0.3toVpp+0.3 V Maximum Output Voltage Vourmax SO toS33,VpL, Vpp— 28 to Vpp + 0.3 Vv Maximum Output Current Ioyrmax S0toS33 3.0 mA Allowable Power Dissipation Pd max Ta=75°C LC7570 500 mW LC7570E 480 mW Operating Temperature Topr -30to+75 Storage Temperature Tstg —40to +125 °C Allowable Operating Ranges at Ta= — 30 to + 75°C, Vgg=0V min typ max unit Supply Voltage Vpp Vpp 4.5 8.0 V Input High Level Voltage = Vint BLK 0.7Vpp Vpp V Input Low Level Voltage Vit BLK 0 03Vpp V Rise Trigger Threshold Vp CL,DATA,WR 0.8Vpp Vpp V Voltage Fall Trigger Threshold VN CL,DATA,WR 0 0.2Vpp V Voltage Output Voltage Vout S0toS33,VrL Vpp—28 Vpp V Write Pulse Width Pw WR 20 ws Electrical Characteristics in the Allowable Operating Ranges min typ max unit Hysteresis Width Vu CL,DATA,WR _ 0.15Vpp 06Vpp V Input High Level Current Tha CL,DATA,WR,SIN,BLK : V;=8V 5.0 yA Input Low Level Current hi CL,DATA,WR,SIN,BLK : V;=0V -5.0 N Output High Level Voltage Von SO to $33 : 19 =2.5mA Vpp-2.8 v Output OFF-State Voltage Vorrp S0toS33:Vpp=Vpp—25V, Vpp-24 V output OFF Self-Contained Resistance ro S0 to $33 : Vpp=5V, 70 170 400 kQ in Output VrL= -—20V A/D Converter 1st Step Light-Up Voltage AD1 SIN 0.1Vpp Vv 2nd Step Light-Up Voltage AD2 SIN 0.2Vpp Vv 3rd Step Light-Up Voltage AD3 SIN 0.3Vpp v 4th Step Light-Up Voltage AD4 SIN 0.4Vpp v 5th Step Light-Up Voltage AD5 SIN 0.5Vpp v Supply Current Ipp Vpp : input=0V,output=open 3.0 mA Equivalent Circuit Block Diagram so Sl S253 $33 VEL BIR AA A, AN a CL DAA WR vDD vss AA: sermit verter oe SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSeee No.1465-2/4

LC7570,7570E —_— Pin Description SO to $33, Vpy : Segment outputs and common pin for pull-down resistors. so Sl-- 2+ ee ene e+ 83 VFL oD | | _ | BLK : Input for making display unlighted CL,DATA,WR : Data input Vpp.Vss : Power supply pin SIN : A/D converter input NC : No connect Data Input tytith, Oy thy dus 12> dus t3>20us Inputting starts at DO. [00 [ou [oz [os [o4 [0s [os [oa] 7 [os [os fr fo forz}oa|osfox los [oy [or[o8 [ow aenc} (nfs ob Jas a Bu abe] D0 to D33 : Display data Dn=[1J: Sn=[1J(=Vpp) DA to DE : Dummy bit (don’t care) Dn=f0J: Sn=[0J (=Vpy) DF : $29 to $33 select DF= I 0]: D29 to D33 +29 to $33 DF=[ 1): AD1>S$33 AD2 > $32 AD3 > $31 AD4 830 AD5 > $29 No.1465-3/4

LC7570,7570E Oe No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. MW Anyone purchasing any products described or contained herein for an above-mentioned use shall: ® Accept full responsibility and indemnify and defend SANYO ELECTRIC CO, LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: @® Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO, LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. Mi Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guarant- eed for volume production, SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties, This catalog provides information as of June, 1995. Specifications and information herein are subject to change without notice. No.1465-4/4