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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ST7921 데이터시트(PDF) 3 Page - Sitronix Technology Co., Ltd. |
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ST7921 데이터시트(HTML) 3 Page - Sitronix Technology Co., Ltd. |
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3 / 11 page  ST7921 Ver 1.6 3/11 2005/05/24 Pin Description : Pin Name Purpose Description I/O VDD POWER for logic N/A VSS GROUND for logic N/A V0 V2 V3 LCD Power for LCD driving voltage I S1-S48 segment LCD driver output for part 1 O SHL1 direction direction control for part 1 segments I DL1, DR1 data in /out If SHL1 = 1 then DL1=out, DR1=in If SHL1 = 0 then DL1=in, DR1=out I/O S49-S96 segment LCD driver output for part 2 O SHL2 direction direction control for part 2 segments I DL2, DR2 data in/out If SHL2 = 1 then DL2=out, DR2=in If SHL2 = 0 then DL2=in, DR2=out I/O M alternation Alternate the LCD driving waveform I CL1 latch clock latch the data after shift is completed I CL2 shift clock shift the data into the segments I |
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