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UPD16641 Datasheet(PDF) 8 Page - NEC |
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UPD16641 Datasheet(HTML) 8 Page - NEC |
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8 / 20 page ![]() 8 µµµµPD16641 Relation between Input Data and Output Data Data format : 1 pixel data (6 bits) × RGB (3 dots) Input width : 18 bits R/L = H (right shift) Output S1 S2 S3 ··· S239 S240 Data D00 to D05 D10 to D15 D20 to D25 ··· D10 to D15 D20 to D25 R/L = L (left shift) Output S1 S2 S3 ··· S239 S240 Data D00 to D05 D10 to D15 D20 to D25 ··· D10 to D15 D20 to D25 5. OPERATION OF OUTPUT BUFFER The output buffer consists of an operational amplifier circuit that does not perform precharge operation. Therefore, driver output current IVOH1/2 is the charging current to the LCD, and IVOL1/2 is the discharging current. The chip has the driving capability to charge or discharge a liquid load with CL = 80 pF to 3 τ in less than 10 µs. <LCD panel driving waveform of µµµµPD16641> Sn VDD2 VSS2 Write (IVOL/IVOH) Write (IVOL/IVOH) 1 horizontal period |
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