HD66773R Datasheet, PDF (126/133 Pages) Renesas Technology Corp – 262,144-color, 132 x 176-dot Graphics Controller Driver for TFT LCD panels

HD66773R
Current consumption - Frame frequency dependence
1.6
1.4
1.2
1.0
0.8
0.6
0.4
60
80
100
120
Frame frequency [Hz]
Current consumption – Write cycle dependency
Normal display
8-color di splay
Conditions
TYP, room temperature
VCC = VCI = 3.0V,
140 _{fOSC = 240kHz}
176 duty, B waveform AC,
RAM = h'0000
AP = 001 Small current mode
VCI1 = 0.92 x VCI,
Step up1: x2 (1/64 cycle)
Step up2: x3 (1/256 cycle)
CAD mode
VREG1OUT = REGP x 1.65
VREG2OUT = VCI x (-5.5),
VCOMH = VREG1OUT x 0.76,
VCOML = VCOMH - (VREG1OUT x 1.23)
30
25
20
15
10
5
0
0
2
4
6
8
Write cycle [MHz]
Normal write
High-speed write
Conditions
TYP, room temperature
10
VCC = VCI = 3.0V,
fOSC = 240kHz
176 duty, B waveform AC,
RAM = h'0000
AP = 001 Small current mode
VCI1 = 0.92 x VCI,
Step up1: x2 (1/64 cycle)
Step up2: x3 (1/256 cycle)
CAD mode
VREG1OUT = REGP x 1.65
VREG2OUT = VCI x (-5.5),
VCOMH = VREG1OUT x 0.76,
VCOML = VCOMH - (VREG1OUT x 1.23)
Rev.1.10, Jun.21.2003, page 126 of 133