Supply Voltage for
Operation
Supply Voltage for
Logic
Supply Voltage for I/O
pins
Supply Voltage for
Display
Operating Current for
V
CC
V
-0.3 4 V 1, 2
CI
V
-0.5 2.75 V 1, 2
DD
V
-0.5 VCI V 1, 2
DDIO
V
-0.5 16 V 1, 2
CC
I
- 55 mA 1,2
CC
Operating Temperature TOP -30 +85 °C
Storage Temperature T
-40 +90 °C
STG
Static Electricity Be sure that you are grounded when handling displays.
Note 1: All the above voltages are on the basis of “VSS = 0V”.
Note 2: When this module is used beyond the above absolute maximum ratings,
permanent breakage of the module may occur. Also, for normal operations, it is
desirable to use this module under the conditions according to Section 3.2
“Electrical Characteristics”. If this module is used beyond these conditions,
malfunctioning of the module can occur and the reliability of the module may
deteriorate.
This pin is the input pin for the voltage output high level for COM
signals. A tantalum capacitor should be connected between this pin
and VSS.
GGrroouunndd ooff AAnnaalloogg CCiirrccuuiitt
This is analog ground pin. It should be connected to VSS externally
HHoosstt DDaattaa IInnppuutt//OOuuttppuutt BBuus
These pins are 8-bit bi-directional data bus to be connected to the
microprocessors data bus. When serial mode is selected, D1 will be
6~13 D7~D0 I/O
the serial data input SDIN and D0 will be the serial clock input
SCLK.
Unused pins must be connected to VSS except for D2 in serial
mode.
RReeaadd//WWrriittee EEnnaabbllee oorr RReeaadd
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
14 E/RD# I
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
low and CS# is pulled low.
When serial mode is selected, this pin must be connected to VSS.
RReeaadd//WWrriittee SSeelleecctt oorr WWrriittee
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
15 R/W# I
“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.
When serial mode is selected, this pin must be connected to VSS.
This pin is Data/Command control pin. When the pin is pulled high,
the input at D7~D0 is treated as display data. When the pin is
pulled low, the input at D7~D0 will be transferred to the command
register. For detailed relationship to MCU interface signals, please
refer to the Timing Characteristics Diagrams
CChhiipp SSeelleecctt
This pin is the chip select input. When the pin is enabled for MCU
communication only when CS# is pulled low..
This pin is segment current reference pin. A resistor should be
connected between this pin and VSS. Set the current lower than
µA
10
RReesseerrvveedd PPiinn
The N.C. pin between function pins are reserved for compatible and
flexible design.
PPoowweerr SSuuppppllyy ffoorr II//OO PPiinn
This pin is a power supply pin of I/O buffer. It should be connected
to VDD or external source. All I/O signals should have VIH
reference to VDDIO. When I/O signal pins (BS0~BS1, D0~D7,
control signals…) pull high, they should be connected to VDDIO.
This is a voltage supply pin. It can be supplied externally (within the
range of 2.4~2.6V) or regulated internally from VCI. A capacitor
should be connected between this pin & VSS under all
circumstances.
PPoowweerr SSuuppppllyy ffoorr OOppeerraattiioonn
This is a voltage supply pin. It must be connected to external source
& always be equal or higher than VDD & VDDIO.
This is segment voltage reference pin.
When external VSL is not used, this pin should be left open.
When external VSL is used, this pin should connect with resistor and
diode to ground.
GGrroouunndd ooff AAnnaalloogg CCiirrccuuiitt
This is the analog ground pin. It should be connected to VSS
externally
PPoowweerr SSuuppppllyy ffoorr OOEELL PPaanneel
This is the most positive supply pin of the chip. This should be
connected to external source.
To protect the panel and extend the panel life time, the driver IC power up/down routine
should include a delay period between high voltage and low voltage power sources during
turn on/off. Such that panel has enough time to charge and discharge before/after
operation.
5.2.1 Power up Sequence:
1. Power up V
2. Send Display off command
3. Initialization
4. Clear Screen
5. Power up V
6. Delay 100ms (when V
7. Send Display on command
CI
CC
& V
DDIO
is stable)
CC
5.2.2 Power down Sequence:
1. Send Display off command
2. Power down V
3. Delay 100ms (when V
0 and panel is completely discharges)
4. Power down V
5.3 RESET CIRCUIT
When RES# input is low, the chip initialized with the following status:
1. Display is OFF
2. 480x128 Display Mode
3. Normal segment and display data column and row address mapping (SEG0
mapped to column address 00h and COM0 mapped to row address 00h)
4. Display start line is set at display RAM address 0
Command usage and explanation of an actual example
<Initialization>
If the noise is accidentally occurred at the displaying window during the operation, please
reset the display in order to recover the display function.
Level of sample for approval set as limit sample
uniformity
Major No unmelted solder paste should be present on PCB
PCB
Critical Cold solder joints, missing solder connections, or oxidation are not allowed
Minor No residue or solder balls on PCB are allowed
Critical
Minor Tray
Purchaser should supply Densitron with detailed data of non-conforming sample.
After accepting it, Densitron should complete the analysis in two weeks from receiving the
sample.
If the analysis cannot be completed on time, Densitron must inform the purchaser.
7.3.2 Handling of non-conforming displays
If any non-conforming displays are found during customer acceptance inspection which
Densitron is clearly responsible for, return them to Densitron.
Both Densitron and customer should analyse the reason and discuss the handling of nonconforming displays when the reason is not clear.
Equally, both sides should discuss and come to agreement for issues pertaining to
modification of Densitron quality assurance standard.
Test Item Test Condition Evaluation and assessment
High Temperature Operation 85°C, 500 hrs
Low Temperature Operation -30°C, 500 hrs
High Temperature Storage 90°C, 500 hrs
Low Temperature Storage -40°C, 500 hrs
High Temperature & High
Humidity Storage
Thermal Shock Storage
60°C, 90% RH, 500 hrs
-40°C 85°C, 100 cycles
30 min. dwell
The brightness should be
greater than 50% of the
initial brightness. The
operational functions work.
• All operation tests are conducted in all display on pattern.
• The samples used for above tests do not include polarizer.
• No moisture condensation is observed during tests.
8.1.1 FAILURE CHECK STANDARD
After the completion of the described reliability test, the samples were left at room
temperature for 2 hrs prior to conducting the failure teat at 23±5 °C55±15% RH
8.2 LIFE TIME
Item Description
Function, performance, appearance, etc. shall be free from remarkable deterioration
within 10,000 hours under ordinary operating and storage conditions of room
1
temperature (25±10 °C), normal humidity (45±20% RH), and in area not exposed to
direct sunlight.
2 End of lifetime is specified as 50% of initial brightness.
If the panel breaks, be careful not to get the organic substance in your mouth or in your eyes.
If the organic substance touches your skin or clothes, wash it off immediately using soap and
plenty of water.
Mounting and Design
Place a transparent plate (e.g. acrylic, polycarbonate or glass) on the display surface to protect the
display from external pressure. Leave a small gap between the transparent plate and the display
surface.
Design the system so that no input signal is given unless the power supply voltage is applied.
Caution during OLED cleaning
Lightly wipe the display surface with a soft cloth soaked with Isopropyl alcohol, Ethyl alcohol or
Trichlorotriflorothane.
Do not wipe the display surface with dry or hard materials that will damage the polariser surface.
Do not use aromatic solvents (toluene and xylene), or ketonic solvents (ketone and acetone).
Caution against static charge
As the display uses C-MOS LSI drivers, connect any unused input terminal to V
input any signals before power is turned on.
Also, ground your body, work/assembly table and assembly equipment to protect against static
electricity.
Packaging
Displays use OLED elements, and must be treated as such. Avoid strong shock and drop from a
height.
To prevent displays from degradation, do not operate or store them exposed directly to sunshine or
high temperature/humidity.
Caution during operation
It is indispensable to drive the display within the specified voltage limit since excessive voltage
shortens its life.
Other Precautions
When a display module is operated for a long of time with fixed pattern may remain as an after
image or slight contrast deviation may occur.
Nonetheless, if the operation is interrupted and left unused for a while, normal state can be
restored. Also, there will be no problem in the reliability of the module.
Storage
Store the display in a dark place where the temperature is 25°C ± 10°C and the humidity below
50%RH.
Store the display in a clean environment, free from dust, organic solvents and corrosive gases.
Do not crash, shake or jolt the display (including accessories).