upd161608 Renesas Electronics Corporation., upd161608 Datasheet - Page 37

• Manufacturer Part Number: upd161608
• Description: 176-rgb X 220-dot 1-chip Driver Ic For 262,144-color Tft-lcd Display
• Manufacturer: Renesas Electronics Corporation.

BT2-BT0: The output factor of step-up is switched. Adjust scale factor of the DC/DC converter circuit by the voltage used.
DC3-DC0: Set the step-up cycle of the step-up circuit for 262 K-color mode (CM = V
Caution When DCn setting is changed to F line x n (DC3-DC0 = 0000 to 1001), the change of the setting is
the driving ability of the step-up circuit increases, but its current consumption increases as well. Adjust the
cycle taking into account the display quality and power consumption.
updated following 2 cases.
1. Power up sequence using SHUT pin
2. From the head of the frame immediately after changing the level of CM pin
Remark When set to 8-color mode (CM = “H”), VGL output voltage is fixed to “−3 x VCI”.
Remark F line: Horizontal frequency (f
BT2
DC3
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
f
OSC
BT1
DC2
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
: DOTCLK frequency (f
BT0
DC1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
DC0
2 x VCI
2 x VCI
2 x VCI
2 x VCI
2 x VCI
2 x VCI
2 x VCI
2 x VCI
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
VCIX2
Data Sheet S17594EJ2V0DS
DOTCLK
H
TYP. 13.5 kHz)
TYP. 2.64 MHz)
VGH Output
6 x VCI
6 x VCI
6 x VCI
5 x VCI
5 x VCI
5 x VCI
4 x VCI
4 x VCI
Step-up Cycle
F line x 14
F line x 11
F line x 9
F line x 7
F line x 6
F line x 5
F line x 4
F line x 3
F line x 2
F line x 1
f
f
f
f
f
f
OSC
OSC
OSC
OSC
OSC
OSC
/24
/40
/48
/56
/64
/80
SS
). When the cycle is accelerated,
VGL Output
−5 x VCI
−4 x VCI
−3 x VCI
−5 x VCI
−4 x VCI
−3 x VCI
−4 x VCI
−3 x VCI
μ
PD161608
37