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UPD16663 Datasheet(PDF) 21 Page - NEC

Part # UPD16663
Description  240-OUTPUT LCD COLUMN SEGMENT DRIVER WITH BUILT-IN RAM
PDF  40 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD16663 Datasheet(HTML) 21 Page - NEC

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Data Sheet S13392EJ1V0DS00
21
µµµµPD16663
10. LCD TIMING GENERATOR CIRCUIT
If master mode is entered by setting MS to H, /FRM and STB are generated at a timing that is 1/160 of the duty
ratio, and driver voltage selection signals L1 and L2 are generated for the row driver.
/FRM is generated twice per frame, STB 81 times per 1/2 frame or 162 times per frame.
(1) /FRM, STB signal generation
OSC1
PULSE
STB
/FRM
STB
81
Frame
1
2
81
1
2
81
1
2
12
(2) L1, L2 signal generation
STB
1
2
3
4
…
12
34
…
1
234
…
12
34
…
L1
11
11
…
11
11
…
0
000
…
00
00
…
L2
10
10
…
01
01
…
0
101
…
10
10
…



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