Datasheet

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ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
EA DOGS164-A
preliminary
SERIAL INTERFACE (SPI, MODE3)
The serial interface always needs a synchronization byte. In write mode, the byte to send hast to be
devided in two bytes, into the “lower data“ and “upper data“. Please refer to the chart below. The
maximum clock frequency for SCLK is 1 MHz.
SPI, 1-/2-/3-WIRE
With 2 to 4 lines SCLK, SID and CS, SOD (if necessary) the display EA DOGS164-A may be connected
directly to the SPI interface of a µC.
Further information about the interfaces and the timing of the SSD1803A, please refer to the datasheet
http://www.lcd-module.de/fileadmin/eng/pdf/zubehoer/ssd1803a_2_0.pdf
I²C INTERFACE
The display can be assigned to the slave adress 0x78 or 0x7A (PIN SA0). After transfering the start
condition, the hardware adress, togehter with the Read(1)/Write(0) bit has to be transmitted. While
writing to the display, after the slave adress, there always is a control byte holding the information
Data(1) or Command(0) and the
continuation bit. If the continuation bit
is set to 0, the following bytes are data
bytes until the next stop condition
occurs. The maximum clock rate for I²C
bus is 400 kHz.
Please be informed, that the pins
SDA+SCK contain an internal
resistance of 600 to 1000 Ohm, or
even more (Important, because of the
LO-level while reading data and the
ACK-Bit).