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 [email protected] www.greatecs.com 1 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 [email protected] 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). www.greatecs.com 2 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. [email protected] www.greatecs.com 3 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 [email protected] www.greatecs.com 4 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) [email protected] www.greatecs.com 5 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) [email protected] www.greatecs.com 6 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) [email protected] www.greatecs.com 7 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) [email protected] www.greatecs.com 8 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 [email protected] www.greatecs.com 9 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) [email protected] www.greatecs.com 10 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. [email protected] www.greatecs.com 11 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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