LC7930N Schematic ( PDF Datasheet ) - Sanyo Semicon Device

Teilenummer	LC7930N
Beschreibung	LCD Drivers
Hersteller	Sanyo Semicon Device
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Gesamt 7 Seiten Ordering number: EN2778C CMOS LSI LC7930N, 7930NW LCD Drivers Overview The LC7930N, 7930NW are CMOS LSIs which incorporate 20-bit shift register, latch, and two sets of 20 LCD drivers. They also have two switching pins: one of them (channel 2) can be used as a scan-line driver (back plate) and the other (channel 1) as a segment driver. They are optimal for LCD interface with microcontroller (4 or 8 bits) or dot matrix controller circuit incorporating character generator. Package Dimensions unit : mm 3055A-QFP60C [LC7930N] Features . Two channels of 20 output segment drivers . The configuration of 20 output segment drivers + 20 . scanning terminal drivers available A series data to connect with the microcontroller and three control signals . Able to be connected in series for large display . Built-in bidirectional shift register can be shifted in the . direction that makes wiring easy Operating supply voltage/ Operating temperature: . VDD = 4.5 to 5.5 V / Topr = –20 to +75°C Operating current drain : IDD = 1.0 mA max . (Logic = 400 kHz, LCD = 1 kHz) Package : Pin 60 Flat LC7930N : QIP60 Pin 64 Flat LC7930NW : SQFP64 unit : mm 3190-SQFP64 SANYO : QIP60C [LC7930NW] SANYO : SQFP64 SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 13097HA(II)/12593JN/6031JN/6218TA,TS No.2778-1/7 LC7930N, 7930NW Continued from preceding page. (1) Waveform Diagrams for Segment Drive Mode (CH2 – BP = ‘‘L’’) (FLM) M CLKLA(latch) CLKSR(shift) Serial input data Latch outputs (Y1 to Y40) (2) Waveform Diagrams for Scan-Line/Segment Drive Mode (CH2–BP = ‘‘H’’) LDATA2/RDATA2 (FLM) M CLKLA (shift) CLKSR(latch) Y21 to Y40 Table 1. LCD Driver Output Voltages (V1 to V6) for Y1 to Y40 CH2–BP High level (1) Low level (2) Serial Input Data 1 (selected) 0 (un-selected) 1 0 Output M Y1 to Y20 Y21 to Y40 H V1 V2 L V2 V1 H V3 V6 L V4 V5 H V1 V1 L V2 V2 H V3 V5 L V4 V6 No.2778-6/7 6 Page
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Besondere Datenblatt

Teilenummer	Beschreibung	Hersteller
LC7930N	LCD Drivers	Sanyo Semicon Device
LC7930NW	LCD Drivers	Sanyo Semicon Device

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