UPD16667 データシートの表示（PDF） - NEC => Renesas Technology
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UPD16667 Datasheet PDF : 16 Pages
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µPD16667
LEVEL SELECTION TIMING OF LIQUID-CRYSTAL DRIVE OUTPUT
The /FRM is input twice in one frame. The STB is input 81 times in half a frame, and 162 times in one frame.
VDD
DIR
VEE
VCC1
/FRM
VSS
VCC1
STB
VSS
81
12
80 81 1 2
80 81 1 2
80 81 1 2
80 81
VCC1
L1
VSS
VCC1
L2
VSS
VDD
X1 V1
VEE
X2
1 frame
T1
T2
T3
T4
X3
X4
X160
(When DIR is “H”)
VDD
DIR
VEE
VDD
X160 V1
VEE
X159
X158
X157
X1
Remark When /DOFF’ is “L”, the X output becomes V1 level. Afterward, if /DOFF’ becomes “H”, the level of the
X output is output with the above timing.
Caution When the time difference between the STB, L1, and L2 signals is large, hazards may occur in
output.
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