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UPD16641 Datasheet(PDF) 8 Page - NEC

Part # UPD16641
Description  SOURCE DRIVER FOR 240-OUTPUT TFT-LCD 64 GRAY SCALES
PDF  20 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD16641 Datasheet(HTML) 8 Page - NEC

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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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