GREATECS YOD2A

OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
DISTINCTIVE CHARACTERISTICS
- Organic LED Technology
- Wide View Angle of 160°
- Exceptional Contrast and Brightness: 50times greater
Brightness than previous LCD Products, four times
more enhanced Resolution
- High Resolution provides sharp, clear Images of very
small Characters
- Single Power / Built in DC to DC Converter for OEL Panel
- Distinct, Long travel of 5mm
- Sophisticated Housing for Assembly easily
- Support Parallel and Serial Interface
GERNERAL SPECIFICATIONS
Dispaly Specifications
Mechanical Specifications
- Display Type: OLED
- Dimension: 33.50x36.12x24.0 mm (LxWxH)
- Display Mode: Passive Matrix
- Window Size: 15.97x11.97 mm (LxW)
- Display Color: ;onochrome (Blue Light)
- Active Area: 13.42x10.06 mm
- Drive Duty: 1/48 Duty
- Assembly: Pitch 1.27mm/12Pin Connector*2
- Number of Pixels: 64x48
Assembly on PCB Easy & Removable & Flexible
- Pixel Size: 0.19x0.19 mm
- Pixel Pitch: 0.21x0.21 mm
- Active Area: 13.42x10.06 mm
Electrical Characteristic
- Supply Voltage: 2.4 ~ 3.3 V
- Single Voltage Control Display Module
- Built-in DC to DC Power Supply to Drive OLED
- Driver IC: SSD1306
- Interface: Parallel/Serial/68xx/80xx/4-wire SPI/I2C
TYPICAL SWITCH DIMENSIONS
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
PIN ASSIGNMENTS
Pin
Number
1
Symbol
Type
Function
VDD
P
Power Supply for Core VDD
This is a voltage supply pin. It must be connected to external source.
2
VSS
G
3
SW
I
Ground for System
This is a ground pin. It must be connected to external source.
Terminal of Switch Normally Open
4
SW
I
Terminal of Switch Normally Open
5
6
BS1
BS2
I
Communication Protocol Select
These pins are MCU interface selection input. See the following table:
BS1
BS2
68XX-parallel
0
1
80XX-parallel
1
1
Serial
0
0
I2C
1
0
7
CS#
I
8
RES#
I
9
D/C#
I
10
W/R#
(R/W#)
I
11
RD#(E)
I
12
NC
-
Reserved Pin
D0~D7
I
21
VSS
G
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 the D0 will be the serial clock input SCLK.
When 12C mode is selected, D2 & D1 should be tired together and serve
as SDAout & SDAin in application and D0 is the serial clock input SCL.
Ground for System
This is a ground pin. It must be connected to external source.
22
VCC-C
TL
I
23
NC
-
24
VCC
P
13~20
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Chip Select
This is the chip select input. The chip is enable for MCU
communication only when CS# is pulled low.
Power Reset for Controller and Drive
This is reset signal input. When the pin is low , initialization of the chip
is executed.
Data/ Command Control
This pin is Data/Command control pin. When the pin is pulled high, the
input at D0~D7 is treated as display data. When the pin is pulled low,
the input at D0~D7 will be transferred to the command register.
Write or Read/Write Select
When 80xx interface mode is selected, the pin will be the Write (WR#)
input.
When interfacing to a 68xx-series microprocessor, the 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.
Read or Read/Write Enable
When 80xx interface mode is selected, the pin will be the Read (RD#)
input.
When interfacing to a 68xx-series microprocessor, the 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.
OLED Driver Power Supply ON/ OFF Control
When this pin is pulled high, the panel power supply will be turned ON.
When this pin is pulled low, the panel power supply will be turned OFF.
Reserved Pin
Voltage Output High Level for COM Signal
This pin is OLED driver power supply. When VCC-CTL is pulled
high, the pin will be output about 9V voltage (Built in Panel Power
Supply).
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Unit
Notes
Supply Voltage for Logic
VDD
-0.3
4
V
1,2
Supply Voltage for Display
Vcc
0
15
V
1,2
Operating Temperature
TOP
-30
70
°C
-
Storage Temperature
TSTG
-40
80
°C
-
Note1:All the about voltages are on the basis of “VSS = 0V”.
Note2: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 6.
“Electrical Characteristics”, if this module is used beyond these conditions,
malfunctioning of the module can occur and the reliability of the module may
deteriorate.
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
ELECTRICAL CHARACTERISTICS
1. DC Characteristics
Characteristics
Symbol
Supply Voltage for Logic
VDD
Supply Voltage for Display
VCC
High Level Input
Conditions
Min
TYP
Max
Unit
2.4
2.8
3.5
V
Note 3
8.5
9
9.5
V
VIH
Iout=100ȝA,3.3MHz
0.8×VDD
-
VDD
V
Low Level Input
VIL
Iout=100ȝA,3.3MHz
0
-
0.2×VDD
V
High Level Output
VOH
Iout=100ȝA,3.3MHz
0.9×VDD
-
VDD
V
Low Level Output
VOL
Iout=100ȝA,3.3MHz
0
-
0.1×VDD
V
Note 4
-
180
300
Operating Current for VDD
IDD
ȝA
Note 5
-
180
300
ȝA
Note 4
-
1.5
2.2
Operating Current for VCC
ICC
mA
Note 5
-
2.5
3.5
mA
Sleep Mode Current for VDD IDD, SLEEP
-
1
5
ȝA
Sleep Mode Current for VCC ICC, SLEEP
-
1
5
ȝA
Note 3: Brightness (Lbr) and Supply Voltage for Display (VCC) are subject to the
change of the panel characteristics and the customer’s request.
Note 4: VDD = 2.8V, VCC = 8.5V, 50% Display Area Turn on.
Note 5: VDD = 2.8V, VCC = 8.5V, 100% Display Area Turn on.
2.
Optics Characteristics
Characteristics
Symbol
Brightness
Lbr
C.I.E.(Blue)
Dark Room Contrast
View Angle
(x)
(y)
CR
Conditions
With Polarizer
(Note 3)
Without Polarizer
Min
TYP
Max
Unit
40
60
-
Cd/m2
0.12
0.16
0.20
0.22
0.26
0.30
-
>2000:1
-
>160
-
Cd/m2
“Cd/m2
degree
* Optical measurement taken at VDD = 2.8V, VCC = 8.5V
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
TIMING CHART
1.
68XX
-Series MPU Parallel Interface Timing Characteristics
Symbol
Description
Min
Max
Unit
tcycle
System Cycle Time
300
-
ns
tAS
Address Setup Time
0
-
ns
tAH
Address Hold Time
0
-
ns
tDSW
Write Data Setup Time
40
-
ns
tDHW
Write Data Hold Time
7
-
ns
tDHR
Read Data Hold Time
20
-
ns
tOH
Output Disable Time
-
70
ns
tACC
Access Time
-
140
ns
Chip Select Low Pulse Width (Read)
120
-
Chip Select Low Pulse Width (Write)
60
-
Chip Select High Pulse Width (Read)
60
-
Chip Select High Pulse Width (Write)
60
-
PWCSL
PWCSH
ns
ns
tR
Rise Time
15
ns
tF
Fall Time
15
ns
*(VDD – VSS = 2.4V to 3.5V,Ta = 25°C)
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
TIMING CHART
2. 80XX -Series MPU Parallel Interface Timing Characteristics
Symbol
Description
Min
Max
Unit
tcycle
Control Cycle Time
300
-
ns
tAS
tAH
tDSW
tDHW
tDHR
tOH
tACC
Address Setup Time
10
-
ns
Address Hold Time
0
-
ns
Write Data Setup Time
40
-
ns
Write Data Hold Time
7
-
ns
Read Data Hold Time
20
-
ns
Output Disable Time
-
70
ns
Access Time
-
140
ns
tPWLR
Read Low Time
120
-
ns
tPWLW
Write Low Time
60
-
ns
tPWHR
Read High Time
60
-
ns
tPWHW
Write High Time
60
Chip Select Setup Time
0
-
ns
tCSH
Chip Select Hold Time to Read Signal
0
-
ns
tCSF
Chip Select Hold Time
20
-
ns
Rise Time
15
ns
Fall Time
15
ns
tCS
tR
tF
ns
*(VDD-VSS=2.4V to 3.5V,TA=25°C)
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
TIMING CHART
3
Series Interface Timing Characteristics
Description
Symbol
Min
Max
Unit
tcycle
Clock Cycle Time
250
-
ns
tAS
tAH
tcss
tCSH
tDSW
tDHW
tCLKL
Address Setup Time
150
-
ns
Address Hold Time
150
-
ns
Chip Select Setup Time
120
-
ns
Chip Select Hold Time
60
-
ns
Write Data Setup Tim
50
-
ns
Write Data Hold Tim
15
-
ns
Serial Clock Low Time
100
-
ns
tCLKH
Serial Clock High Time
100
tR
tF
ns
Rise Time
-
15
ns
Fall Time
-
15
ns
*(VDD – VSS = 2.4V to 3.5V,Ta = 25°C)
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
TIMING CHART
4
I2C Interface Timing Characteristics
Symbol
Description
tcycle Clock Cycle Time
tHSTART Start Condition Hold Time
tHD
Data Hold Time (for “SDAOUT” Pin)
Min
Max
Unit
2.5
-
us
0.6
-
us
-
ns
0
Data Hold Time (for “SDAIN” Pin)
300
Data Setup Time
100
-
ns
tSSTART
Start Condition Setup Time
(Only relevant for a repeated Start condition)
0.6
-
us
tSSTOP
Stop Condition Setup Time
0.6
-
us
Rise Time for Data and Clock Pin
300
ns
Fall Time for Data and Clock Pin
300
ns
tSD
tR
tF
tIDLE
Idle Time before a New Transmission
can Start
1.3
us
*(VDD – VSS = 2.4V to 3.5V,Ta = 25°C)
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
FUNCTION SPECIFICATION
1 Command
Refer to the Technical Manual for the SSD1306 – Revision 1.2
2 Power Down and Power up Sequence
To protect OEL 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. It gives the OEL panel enough time
to complete the action of charge and discharge before/after the operation.
Power up Sequence
1. Power up VDD
2. Send Display off Command
3. Initialization
4. Clear Screen
5. Power up Vcc
6. Delay 100ms (When VDD is stable)
7. Send Display on Command
Power down Sequence
1. Send Display off command
2. Power down Vcc
3. Delay 100ms (When Vcc is reach 0 and panel is completely discharges)
4. Power down VDD
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
FUNCTION SPECIFICATION
3 Reset Status
When RES# input is low, the chip is initialized with the following status:
1. Display is OFF
2. 132×64 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. Shift register data clear in serial interface
5. Display start line is set at display RAM address 0
6. Column address counter is set at 0
7. Normal scan direction of the COM outputs
8. Contrast control register is set at 80h
9. Normal display mode (Equivalent to A4h command)
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
COMMAND APPLICATION EXAMPLE
Command usage and explanation of an actual example
<Initialization>
OLED_VCC_CTL=0;
//Off power up Panel Vcc
OLED_RESET=0;
//Reset driver IC for 100ms
Delay_100ms (1);
OLED_RESET=1;
Set_Display_Off (0xAE, 0x00);
// Display Off (0x00/0x01)
Set_Display_Clock (0xD5, 0x80);
// Set Clock as 100 Frames/Sec
Set_Multiplex_Ratio(0xA8, 0x2F);
// 1/48 Duty (0x0F~0x3F)
Set_Display_Offset(0xD3, 0x00);
// Shift Mapping RAM Counter (0x00~0x3F)
Set_Start_Line(0x40,0x00);
// Set Mapping RAM Display Start Line 0x00~0x3F)
Set_Master_Config(0xAD, 0x8E);
// Disable Embedded DC/DC Converter
Set_Addressing_Mode(0x20, 0x02);
// Set Page Addressing Mode
Set_Segment_Remap(0xA1,0x01);
// Set SEG/Column Mapping
Set_Common_Remap(0xC8);
// Set COM/Row Scan Direction
Set_Common_Config(0xDA, 0x12);
// Set Alternative Configuration
Set_Contrast_Control(0x81, 0xCF);
// Set SEG Output Current
Set_Precharge_Period(0xD9, 0xD2);
// Set Pre-Charge as 13 Clocks & Discharge as 2 Cock
Set_VCOMH(0xDB, 0x34);
// Set VCOM Deselect Level
Set_Entire_Display(0xA4);
// Disable Entire Display On (0x00/0x01)
Set_Inverse_Display(0xA6);
// Disable Inverse Display On (0x00/0x01)
Fill_RAM(0x00);
// Clear Screen
OLED_VCC=1;
//Power up Vcc
Delay_100ms(1);
//Dealy 100ms
Set_Display_On(0xAF);
// Display On (0x00/0x01)
If the noise is accidentally occurred at the displaying window during the operation,
please reset the display in order to recover the display function.
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OLED Push Switches
64x48 Monochrome (0.66”) OLED Switches Snap-In Type
YOD2A
RELIABILITY
1
Contents of Reliability Test
Item
High Temperature Operation
Conditions
70°C, 240hrs
Low Temperature Operation
-30°C, 240hrs
High Temperature Storage
80°C, 240hrs
Low Temperature Storage
-40°C, 240hrs
High Temperature / Humidity Operation
60°C, 90% RH, 120hrs
Criteria
The operational
functions work
-40°C<=>85°C, 24 cycles
Thermal Shock
60 mins dwell
*The samples used for the above test do not include polarizer.
*No moisture condensation is observed during test.
2
Lifetime
End of lifetime is specified as 50% of initial brightness
Parameter
Min
Max
Unit
Condition
Notes
Operating Life Time
10,000
-
hr
*
Storage Life Time
20,000
-
hr
60 cd/m2, 50% checkerboard
Ta = 25°C, 50% RH
*The average operating lifetime at room temperature is estimated by the accelerated
operation at high temperature conditions.
3 Failure Check Standard
After the completion of the described reliability test, the samples were left at room
temperature for 2hrs prior to conducting the failure test at 23±5°C;55±15% RH.
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