ST7586S Sitronix Technology Corporation, ST7586S Datasheet - Page 12

• Manufacturer Part Number: ST7586S
• Description: 4-level Gray Scale Dot Matrix Lcd Controller/driver
• Manufacturer: Sitronix Technology Corporation

ST7586S
PIN DESCRIPTION
Power System
Ver-1.1b
VDD2~5
Name
VDDX
VDD1
VSSX
VD1S
VD1O
XV0O
VSS1
VSS2
VSS4
XV0S
VD1I
XV0I
VGO
V0O
VGS
V0S
VGI
V0I
VM
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
Input
VDD1 is the power of interface I/O circuit.
VDD2 is the analog power for internal booster. VDD3~5 are the analog power for LCD driver.
VDD2~5 and VDDX are separated in ITO and connected together by FPC or PCB.
Digital power for OSC circuit.
VDD2~5 and VDDX are separated in ITO and connected together by FPC or PCB.
Ground of interface, logic (VSS1) and OSC (VSSX) circuits.
Ground system should be connected together by FPC or PCB.
Ground of booster (VSS2) and LCD (VSS4) driver.
Ground system should be connected together by FPC or PCB.
Ground of OSC circuit.
Ground system should be connected together by FPC or PCB.
Digital power source selection.
VD1S = “L”: the power source of digital circuit is VDD1.
VD1S = “H”: the power source of digital circuit is internal regulator.
VD1I is the power source of digital circuits.
VD1O is the VD1 output. VD1I and VD1O should be connected together by FPC or PCB.
Positive operating voltage of COM-drivers.
V0O is the output of the positive Vop generator.
V0I is the positive Vop supply of LCD drivers.
V0S is the sensor of the positive Vop generator.
V0O, V0I & V0S should be separated on ITO and be connected together by FPC.
Negative operating voltage of COM-drivers.
XV0O is the output of the negative Vop generator.
XV0I is the negative Vop supply of LCD drivers.
XV0S is the sensor of the negative Vop generator.
XV0O, XV0I & XV0S should be separated on ITO and be connected together by FPC.
VG is the power of SEG-drivers. VM is the non-select voltage level of COM-drivers.
VGO is the output of the VG regulator.
VGI is the supply of SEG-drivers.
VGS is the sensor of the VG regulator.
VGO, VGI & VGS should be separated on ITO and be connected together by FPC.
Be sure the relationships (as shown below) among the LCD driving voltages:
V0
When this IC is operating, VG and VM are generated according to the bias setting shown below:
VDD1 (TYP.)
LCD Bias
1/N Bias
VG
1.8
2.8
3.0
3.3
VM
VSS
Cap. of VD1 and VSS
(2/N) x V0
Unnecessary
Necessary
Necessary
Necessary
XV0; VDDA-0.7
VG
12/63
(1/N) x V0
VM
Description
VM
Level of VD1S
0.9V; and 2*VDDA-0.7
VSS1
VDD1
VDD1
VDD1
Note: N = 9~14
VG
1.8V
2009/12/23