KS0093 데이터 시트보기 (PDF) - Samsung
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KS0093 Datasheet PDF : 55 Pages
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KS0093
26 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD
PIN DESCRIPTION
POWER SUPPLY
Name
VDD
VSS
I/O
Power
V0
V1
V2
I/O
V3
V4
Table 3. Pin Description
Description
Power supply
Connect to MPU power supply pin.
0V (GND)
Bias voltage level for LCD driving
Voltages should have the following relationship;
V0 ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS
When the built-in power circuit is active and internal 1/5 bias resistors
are used.
LCD bias
V1
V2
V3
V4
1/5 bias (4/5) x V0 (3/5) x V0 (2/5) x V0 (1/5) x V0
When the built-in power circuit is active and internal 1/4 bias resistors
are used.
LCD bias
V1
V2
V3
V4
1/4 bias (3/4) x V0
(2/4) x V0
(1/4) x V0
LCD DRIVER SUPPLY
Table 3. Pin Description (Continued)
Name
CAP1+
CAP1-
CAP2+
CAP2-
VOUT
VR
VEXT
REF
I/O
Description
O
Capacitor + connecting pin for the internal voltage converter
O
Capacitor - connecting pin for the internal voltage converter
O
Capacitor + connecting pin for the internal voltage converter
O
Capacitor - connecting pin for the internal voltage converter
I/O
DC/DC voltage converter output (7.2V)
Voltage adjust pin
I
This pin gives a voltage between V0 and VSS by resistance-division of
voltage.
External reference voltage for internal regulator (instead of the internal
VREF, 2V)
I
REF = "Low (VSS)": VEXT is not used (open).
REF = "High (VDD)": VEXT is reference input voltage of internal voltage
regulator.
Select the input voltage of internal voltage regulator
REF = "Low (VSS)": The input voltage of internal
I
Voltage regulator is the internal VREF(2V).
REF = "High (VDD)": The input voltage of internal
Voltage regulator is the voltage of VEXT.
6
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