SSD1789A Solomon Systech, SSD1789A Datasheet - Page 18

• Manufacturer Part Number: SSD1789A
• Description: CSTN LCD Driver
• Manufacturer: Solomon Systech

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The No connection (NC) pin should NOT be connected to any signal pin nor shorted to other NC pins in application. It
should be left open.
This pin is a floating dummy pin with no internal circuit connection.
6.21 ROW0 – ROW131
These pins provide the driving signals, COMMON, to the LCD panel.
6.22 COL0 – COL395
These pins provide the LCD driving signals, SEGMENT, to the LCD panel. The Red, Green, Blue colors signal are sent
out from the SEGMENT output at the same time. The output voltage level of these pins is V
standby mode.
6.23 C1P, C1N, C2P, C2N, C1Y, C3P, C4P
When internal DC-DC voltage converter is used, external capacitor is connected between these pins. Please
refer to the system block diagram for external capacitors connection in Figure 5.
6.24 CL
This pin is the system clock I/O. This pin is the external clock input for the device, which is enabled by using extended
command. It should be left open under normal operation. The internal oscillator will be used after power on reset.
6.25 M
This pin is used for cascade purpose only. It should be left open under normal operation.
6.26 SYN
This pin is used for cascade purpose only. It should be left open under normal operation.
6.27 BUSY
This pin will be high during RAM buffer read/write operation and during graphic commands executing.
programmer should read this pin (low is ready, high is busy) before sending next RAM buffer related command (e.g. RAM
write – 5CH; RAM read – 5DH OR any graphic commands)
6.28 NC
6.29 DUMMY
Solomon Systech
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Jul 2004
P 18/69 Rev 1.0
DD
during sleep mode or
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