UPD16666A Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD16666A

240-OUTPUT LCD ROW DRIVER

NEC => Renesas Technology 

PPD16666A

LEVEL SELECTION TIMING OF LIQUID-CRYSTAL DRIVE OUTPUT

The FRMB is input in one frame twice. The STB is input into half a frame 121 times, and into one frame 242

times.

VDD

DIR

VEE

VCC1

FRMB

VSS

VCC1

STB

VSS

121

12

120 121 1 2

120 121 1 2

120 121 1 2

120 121

VCC1

L1

VSS

VCC1

L2

VSS

VDD

X1 V1

VEE

X2

1 frame

T1

T2

T3

T4

X3

X4

X240

(When DIR is “H”)

VDD

DIR

VEE

VDD

X240 V1

VEE

X239

X238

X237

X1

Remark While the DOFFB’ is “L”, the X output remains at the V1 level. Afterward, if it becomes “H”, the level of

the X output is output timed with the above timing.

Note When the time lag between STB signal and the L1, L2 signals is large, hazard may occur in output.

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