ST7573 データシートの表示（PDF） - Sitronix Technology Co., Ltd.
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ST7573 Datasheet PDF : 46 Pages
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ST7573
6. PIN DESCRIPTION
Pin Name
I/O
Description
LCD DRIVER OUTPUTS
LCD segment driver outputs.
This display data and the M signal control the output voltage of segment
driver.
SEG0…SEG131
O
Display data Frame
H
+
H
-
L
+
L
-
Power save mode
Segment driver output voltage
Normal display Reverse display
VG
VSS
VSS
VG
VSS
VG
VG
VSS
VSS
VSS
LCD column driver outputs.
This internal scanning data and M signal control the output voltage of
common driver.
Common driver output voltage
Display data Frame
Normal display Reverse display
COM0…COM31
O
H
+
XV0
H
-
V0
L
+
VM
L
-
VM
Power save mode
VSS
Common output for the icon. The output signals of two pins are the same.
COMS1…COMS2
O
When not used, this pin should be floating.
MICROPROCESSOR INTERFACE
Microprocessor interface select input pin.
PS2 PS1 PS0
State
PS0…PS2
“L”
“L”
“L”
I
“H”
“L”
“L”
4 Pin-SPI MPU interface
3 Pin-SPI MPU interface
“L”
“H”
“L”
8080-series parallel MPU interface
“H”
“H”
“L”
6800-series parallel MPU interface
Chip select input pins.
CSB
I
Data/instruction I/O is enabled only when CSB is “L”. When chip select is
non-active, D0 to D7 is high impedance.
RESB
Reset input pin.
I
When RESB is “L”, initialization is executed.
It determines whether the data bits are data or a command.
A0=“H”: Indicates that D0 to D7 are display data.
A0
I
A0=“L”: Indicates that D0 to D7 are control data.
When in 3-line SPI interface, left it connected to VDD.
Pin
Count
132
32
2
3
1
1
1
Ver 1.0b
7/46
2007/07/12
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