HD66766R Datasheet, PDF (80/97 Pages) Hitachi Semiconductor – 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors

HD66766R
Rev. 1.0-1 / September 2002
Step up circuit characteristics
Table 43
Item
Terminal
Step up
circuit 1
VOUT
Step up
circuit 2
VCH
Step up
circuit 3
VCL
Unit Test Condition
Min
VCC = 3.0 [V]
Vci step up factor = 0.92
V Step up factor : two times
5.25
Step up cycle: 32 divided cycle
Load voltage = 400 [µA]
VCC = 3.0 [V] VOUT = 5.5 [V]
VREFL = 3.0 [V]
VREFM = 1.1 x VREFL
Constant current of
operation amplifier: small
V Contrast adjustment value = 0.000R 21.2
1/12 bias
Step up cycle of step up circuit 2: 96
divided cycle
Step up factor: Five times
Load current = 20 [uA]
VCC = 3.0 [V] VOUT = 5.5 [V]
VREFL = 3.0 [V]
VREFM = 1.1 x VREFL
Constant current of
operation amplifier: small
V Contrast adjustment value = 0.000R -21.0
1/12 bias
Step up cycle of polarity inversion
circuit: 96 divided cycle
Step up factor: Five times
Load current = 20 [uA]
Typ
5.48
21.3
-21.2
Max Notes
——
— (9)
— (9)
80