ST7522 Sitronix, ST7522 Datasheet - Page 15

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ST7522

Manufacturer Part Number
ST7522
Description
17 x 96 Dot Matrix LCD Controller
Manufacturer
Sitronix
Datasheet

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ST7522
The Liquid Crystal Driver Circuits
These are a 113-channel (ST7522), that generate four
voltage levels for driving the liquid crystal. The combination
of the display data, the COM scan signal, and the FR signal
Ver 1.0c
COM10
COM11
COM12
COM13
COM14
COM15
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM0
COM1
COM2
COM0
COM0
SEG0
SEG1
SEG0
SEG1
FR
to
to
Figure 6
15/45
www.DataSheet.co.kr
produces the liquid crystal drive voltage output.
Figure 6 shows examples of the SEG and COM output
wave form.
VDD
VSS
VDD
V1
V2
V3
V4
V5
VDD
V1
V2
V3
V4
V5
VDD
V1
V2
V3
V4
V5
VDD
V1
V2
V3
V4
V5
VDD
V1
V2
V3
V4
V5
V5
V4
V3
V2
V1
VDD
-V1
-V2
-V3
-V4
-V5
V5
V4
V3
V2
V1
VDD
-V1
-V2
-V3
-V4
-V5
2002/07/10
Datasheet pdf - http://www.DataSheet4U.net/

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