OLED-128Y064Q-LPP3N00000
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Revision: 11-Oct-16 2Document Number: 37951
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INTERFACE PIN FUNCTION
PIN NO. SYMBOL I / O FUNCTION
1NC
(GND)
Reserved pin (supporting pin)
The supporting pin can reduce the influences from stresses on the function pins. This pin must be
connected to external ground.
2V
CC PPower supply for OLED panel
This is the most positive voltage supply pin of the chip. It must be supplied externally.
3V
COMH P
Voltage output high level for COM signal
This pin is the input pin for the voltage output high level for COM signals. It can be supplied externally
or internally. When VCOMH is generated internally, a capacitor should be connected between this pin
and VSS.
4I
REF I
Current reference for brightness adjustment
This pin is segment current reference pin. A resistor should be connected between this pin and VSS.
Set the current at 10 μA.
5 to 12 D7 to D0 I / O
Host data input / output bus
These pins are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus. When
serial mode is selected, D1 will be the serial data input SDIN and D0 will be the serial clock input SCLK
13 E / RD# I
Read / write enable or read
This pin is MCU interface input. When interfacing to a 68XX-series microprocessor, this pin will be used
as the enable (E) signal. Read / write operation is initiated when this pin is pulled high and the CS# is
pulled low. When connecting to an 80XX microprocessor, this pin receives the read (RD#) signal. Data
read operation is initiated when this pin is pulled low and CS# is pulled low.
14 R / W# I
Read / write select or write
This pin is MCU interface input. When interfacing to a 68XX-series microprocessor, this pin will be used
as read / write (R / W#) selection input. Pull this pin to “high” for read mode and pull it to “low” for write
mode. When 80XX interface mode is selected, this pin will be the write (WR#) input. Data write operation
is initiated when this pin is pulled low and the CS# is pulled low.
15 D / C# I
Data / command control
This pin is data / command control pin. When the pin is pulled high, the input at D7 to D0 is treated as
display data. When the pin is pulled low, the input at D7 to D0 will be transferred to the command
register. For detail relationship to MCU interface signals, please refer to the timing characteristics
diagrams. When the pin is pulled high and serial interface mode is selected, the data at SDIN is treated
as data. When it is pulled low, the data at SDIN will be transferred to the command register.
16 RES# I Power reset for controller and driver
This pin is reset signal input. When the pin is low, initialization of the chip is executed.
17 CS# I
Chip select
This pin is the chip select input. The chip is enabled for MCU communication only when CS# is pulled
low.
18 NC Reserved pin
The NC pins between function pins are reserved for compatible and flexible design.
19 BS2
I
Communicating protocol select
These pins are MCU interface selection input. See the following table:
68XX parallel 80XX parallel Serial
20 BS1
BS1010
BS2110
5 to 12 D7 to D0 I / O
Host data input / output bus
These pins are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus. When
serial mode is selected, D1 will be the serial data input SDIN and D0 will be the serial clock input SCLK
21 VDD PPower supply for logic circuit
This is a voltage supply pin. It must be connected to external source.
22 NC
Reserved pin
The NC pins between function pins are reserved for compatible and flexible design.
23 NC
24 NC
25 NC
26 NC
27 NC
28 NC
29 VSS P
Ground of OLED system
This is a ground pin. It also acts as a reference for the logic pins, the OLED driving voltages, and the
analog circuits. It must be connected to external ground.