S6A0092 Datasheet, PDF (10/54 Pages) Samsung semiconductor – 80 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD

S6A0092
26 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD
PIN DESCRIPTION
Name
Power supply
VDD
VSS
V0
V1
V2
V3
V4
LCD driver supply
CAP1+
CAP1-
CAP2+
CAP2-
VOUT
VR
VEXT
REF
Table 3. Pin Description
I/O
Description
Power
I/O
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
1/4 bias (3/4) x V0
V2
V3
(2/4) x V0
V4
(1/4) x V0
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.
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