ST7528 Sitronix, ST7528 Datasheet - Page 39

• Manufacturer Part Number: ST7528
• Description: 16 Gray Scale Dot Matrix LCD Controller
• Manufacturer: Sitronix

ST7528
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 controlled by power control instruction. For details, refers to "Instruction Description". Table 4
shows the referenced combinations in using Power Supply circuits.
Ver2.3
Only the external power
supply circuits are used
supply circuits are used
Only the internal power
voltage follower circuits
regulator circuits and
Only the voltage
Only the voltage
circuits are used
User setup
are used
follower
(VC VR VF)
control
Power
1 1 1
0 1 1
0 0 1
0 0 0
Table 4 Recommended Power Supply Combinations
circuits
OFF
OFF
OFF
V/C
ON
circuits
OFF
OFF
V/R
ON
ON
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circuits
OFF
V/F
ON
ON
ON
VOUT_IN
External
Internal
OPEN
OPEN
input
capacitor
capacitor
External
External
Without
Without
input
input
V0
2007/1/3
capacitor
capacitor
capacitor
V1 to V4
External
input
With
With
With
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