ST7070 View Datasheet(PDF) - Sitronix Technology Co., Ltd.
Part Name
Description
MFG CO.
'ST7070' PDF : 51 Pages View PDF
ST7070
EXT=1
Bias resistor select
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 1 Rb1 Rb0
Code
Set internal bias resistor value.
Rb1 Rb0
Description
L
L External bias resistor select.
L
H Build-in resistor select (R=2.2K).
H
L Build-in resistor select (R=6.8K).
H
H
Build-in resistor select (R=9.0K).
COM、SEG direction select
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
Code
0
0
1
0
0 C1 C2 S1 S2
The SEG and COM output in ST7070 all have bi-direction control by the register.
COM OUTPUT :
COM output
C1
COM1
COM8
0
COM1
Common Address
COM8
1
COM8
Common Address
COM1
SEG OUTPUT :
COM output
C2
0
1
COM9
COM9
COM16
SEG output
S1
0
1
SEG1
SEG1
SEG40
Common Address
Common Address
Segment Address
Segment Address
COM16
COM16
COM9
SEG40
SEG40
SEG1
SEG output
S2
0
1
SEG41
SEG41
SEG80
Segment Address
Segment Address
SEG80
SEG80
SEG41
V1.4
21/51
2009/04/29
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