SL20T0081 System Logic Semiconductor, SL20T0081 Datasheet - Page 9

• Manufacturer Part Number: SL20T0081
• Description: SLS System Logic Semiconductor
• Manufacturer: System Logic Semiconductor

SLS System Logic Semiconductor
PIN DESCRIPTION
Power Supply Pins
LCD Power Supply Circuit Pins
Pin Name
Pin Name
CAP1+
CAP2+
CAP3+
CAP4+
CAP1-
CAP2-
VOUT
VEXT
IREF
VDD
VSS
VCI
IRE
VR
V0
V1
V2
V3
V4
Supply
Supply
Supply
Supply
Power
Power
Power
Power
I/O
I/O
O
O
O
O
O
O
O
I
I
I
I
Positive Power Supply.
System Ground.
Voltage Booster input pin. The power supply for the voltage booster. VCI input voltage
is the reference of boosted output voltage (VOUT) of voltage booster.
LCD driver supply voltage pins.
When the internal LCD power supply circuit is enabled, these voltages are generated by it.
When the internal LCD power supply circuit is disabled, these voltages must be supplied
externally, and they should have the following relationship.
VSS < V4 < V3 < V2 < V1 < V0
Voltage booster pin. Connect a capacitor between this pin and the CAP1- pin
Voltage booster pin. Connect a capacitor between this pin and the CAP1+ pin
Voltage booster pin. Connect a capacitor between this pin and the CAP2- pin
Voltage booster pin. Connect a capacitor between this pin and the CAP2+ pin
Voltage booster pin. (refer the application example to connecting a capacitor)
Voltage booster pin. (refer the application example to connecting a capacitor)
Voltage booster pin. Connect a capacitor between this pin and VSS.
This is the external reference voltage input pin of the LCD power supply circuit.
This pin is valid only when internal reference voltage circuit is disabled (IREF=0).
Internal reference voltage circuit enable pin.
External V0 voltage adjustment pin.
VR pin is valid only when the internal voltage regulator resistors are not used (IRE=0)
Internal voltage regulator resistor enable pin.
This pin selects the resistors for the V0 voltage level adjustment.
IREF = 0
IREF = 1
IRE = 1
IRE = 0
: Internal reference voltage circuit is disabled. External reference voltage is
: Internal reference voltage circuit is enabled.
: Use the internal resistors
: Do not use the internal resistors. The V0 voltage level is controlled by the
inputted via VEXT pin.
external resisters that connected among V0 pin and VR pin and VSS.
Function
Function
SL20T0081