S6B0755 Datasheet, PDF (28/68 Pages) Samsung semiconductor – 128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD

S6B0755
PRELIMINARY SPEC. VER. 1.0
128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
POWER SUPPLY CIRCUITS
The Power Supply circuits generate the voltage levels necessary to drive liquid crystal driver circuits with low-
power consumption and the fewest components. There are voltage converter circuits, voltage regulator circuits,
and voltage follower circuits. They are valid only in master operation and controlled by power control instruction.
For details, refers to "Instruction Description". Table 9 shows the referenced combinations in using Power Supply
circuits.
Table 9. Recommended Power Supply Combinations
User setup
Only the internal power
supply circuits are used
Only the voltage regulator
circuits and voltage follower
circuits are used
Only the voltage follower
circuits are used
Only the external power
supply circuits are used
Power
control
(VC VR VF)
111
011
001
000
V/C
circuits
ON
OFF
OFF
OFF
V/R
V/F
circuits circuits
VOUT
V0
ON
ON
Open Open
ON
OFF
OFF
ON
ON
OFF
External
input
Open
Open
Open
External
input
External
input
V1 to V4
Open
Open
Open
External
input
25