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HD66503 Datasheet(PDF) 13 Page - Hitachi Semiconductor

Part No. HD66503
Description  (240-Channel Common Driver with Internal LCD Timing Circuit)
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Maker  HITACHI [Hitachi Semiconductor]
Homepage  http://www.renesas.com/eng
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HD66503 Datasheet(HTML) 13 Page - Hitachi Semiconductor

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HD66503
939
Application Example
Outline of HD66503 System Configuration
The HD66503 system configuration is outlined in Figures 9 and 10. Refer to the connection list (Table 7)
for connection details.
• When a single HD66503 is used to configure a small display (Figure 9)
• When two HD66503s are used to configure a large display (Figure 10)
No. 1
LCD
COM1
to
COM240
HD66520
When using the internal oscillator
Refer to
connection list A
When using an external clock
Refer to
connection list D
No. 1
Note: One HD66503 drives common signals and supplies timing signal to the HD66520.
Figure 9 When Using a Single HD66503
No. 1
LCD
COM1
to
COM240
HD66520
No. 2
Upper
display
COM241
to
COM480
Lower
display
HD66520
When using the
internal oscillator
Refer to
connection list B
When using an
external clock
Refer to
connection list E
No. 1
Refer to
connection list C
Refer to
connection list C
No. 2
Note: Upper and lower displays are driven by separate HD66503s to ensure display quality. No. 1 operates in master
mode, and No. 2 operates in slave mode.
Figure 10 When Using Two HD66503s


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