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oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 1 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 - display type: oled - display mode: passive matrix - display color: ;onochrome (blue light) - drive duty: 1/48 duty - number of pixels: 64x48 - pixel size: 0.19x0.19 mm - pixel pitch: 0.21x0.21 mm - active area: 13.42x10.06 mm mechanical specifications - dimension: 24.5x24.5x22.3 mm (lxwxh) - window size: 16x12 mm (lxw) - active area: 13.42x10.06 mm - assembly: pitch 1.27mm/12pin connector*2 assembly on pcb easy & removable & flexible typical switch dimensions 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/i 2 c
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 2 pin assignments pin number s y mbol t y pe function 1vdd ppowersuppl y for core vdd this is a voltage supply pin. it must be connected to external source. 2vss ggroundfors y stem this is a ground pin. it must be connected to external source. 3sw i terminal of switch n ormally open 4sw i terminal of switch n ormally open 5 6 bs1 bs2 i communication protocol selec t these pins are mcu interface selection input. see the following table: 68xx-parallel 80xx-parallel serial i 2 c bs1 0 1 0 1 bs2 1 1 0 0 7cs# ichipselec t this is the chip select input. the chip is enable for mcu communication only when cs# is pulled low. 8 res# i power reset for controller and drive this is reset signal input. when the pin is low , initialization of the chip is executed. 9 d/c# i 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. 10 w/r# (r/w#) i write or read/write selec t 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. 11 rd#(e) i 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. 12 nc - reserved pi n 13~20 d0~d7 i host data input /output bus 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 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. 21 vss g ground for s y stem this is a ground pin. it must be connected to external source. 22 vcc-c tl i oled driver power suppl y 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. 23 nc - reserved pin 24 vcc p volta g eoutputhi g hlevelforcomsi g na l 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).
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 3 absolute maximum ratings parameter symbol min max unit notes supply voltage for logic v dd -0.3 4 v 1,2 supply voltage for display vcc 0 15 v 1,2 operating temperature t op -30 70 c - storage temperature t stg -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.
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 4 electrical characteristics 1. dc characteristics characteristics symbol conditions min typ max unit supply voltage for logic v dd 2.4 2.8 3.5 v supply voltage for display v cc note 3 8.5 9 9.5 v high level input v ih iout=100 a,3.3mhz 0.8v dd - v dd v low level input v il iout=100 a,3.3mhz 0 - 0.2v dd v high level output v oh iout=100 a,3.3mhz 0.9v dd -v dd v low level output v ol iout=100 a,3.3mhz 0 - 0.1v dd v operating current for v dd i dd note 4 note 5 - - 180 180 300 300 a a operating current for v cc i cc note 4 note 5 - - 1.5 2.5 2.2 3.5 ma ma sleep mode current for v dd i dd ,sleep -15 a sleep mode current for v cc i cc ,sleep -15 a note 3: brightness (l br ) and supply voltage for display (v cc ) are subject to the change of the panel characteristics and the customers request. note 4: v dd =2.8v,v cc = 8.5v, 50% display area turn on. note 5: v dd =2.8v,v cc = 8.5v, 100% display area turn on. 2. optics characteristics characteristics symbol conditions min typ max unit brightness lbr with polarizer (note 3) 40 60 - cd/m 2 c.i.e.(blue) (x) (y) without polarizer 0.12 0.22 0.16 0.26 0.20 0.30 cd/m 2 dark room contrast cr - >2000:1 -cd/m 2 view angle >160 - degree * optical measurement taken at v dd =2.8v,v cc =8.5v
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 5 timing chart 1. 68xx - -series mpu parallel interface timing characteristics symbol description min max unit t cycle system cycle time 300 - ns t as address setup time 0 - ns t ah address hold time 0 - ns t dsw write data setup time 40 - ns t dhw write data hold time 7 - ns t dhr read data hold time 20 - ns t oh output disable time - 70 ns t acc access time - 140 ns pw csl chip select low pulse width (read) 120 - ns chip select low pulse width (write) 60 - pw csh chip select high pulse width (read) 60 - ns chip select high pulse width (write) 60 - t r rise time 15 ns t f fall time 15 ns *(v dd C v ss = 2.4v to 3.5v | t a= 25 c)
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 6 timing chart 2. 80xx -series mpu parallel interface timing characteristics symbol description min max unit tcycle control cycle time 300 - ns t as address setup time 10 - ns t ah address hold time 0 - ns t dsw write data setup time 40 - ns t dhw writedataholdtime 7 - ns t dhr read data hold time 20 - ns t oh output disable time - 70 ns t acc access time - 140 ns t pwlr read low time 120 - ns t pwlw write low time 60 - ns t pwhr read high time 60 - ns t pwhw write high time 60 ns t cs chip select setup time 0 - ns t csh chip select hold time to read signal 0 - ns t csf chip select hold time 20 - ns t r rise time 15 ns t f fall time 15 ns *(v dd- v ss =2.4v to 3.5v | t a= 25 )
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 7 timing chart 7. series interface timing characteristics symbol description min max unit tcycle clock cycle time 250 - ns t as address setup time 150 - ns t ah address hold time 150 - ns tcss chip select setup time 120 - ns t csh chip select hold time 60 - ns t dsw writedatasetuptim 50 - ns t dhw write data hold tim 15 - ns t clkl serial clock low time 100 - ns t clkh serial clock high time 100 ns t r rise time - 15 ns t f fall time - 15 ns *(v dd C v ss =2.4vto3.5v | t a= 25 c)
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 8 timing chart 4i 2 c interface timing characteristics symbol description min max unit t cycle clock cycle time 2.5 - us t hstart start condition hold time 0.6 - us t hd data hold time (for sda out pin) 0 -ns data hold time (for sda in pin) 300 t sd data setup time 100 - ns t sstart start condition setup time (only relevant for a repeated start condition) 0.6 - us t sstop stop condition setup time 0.6 - us t r rise time for data and clock pin 300 ns t f fall time for data and clock pin 300 ns t idle idle time before a new transmission can start 1.3 us *(v dd C v ss =2.4vto3.5v | t a= 25 c)
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 9 function specification 1 command refer to the technical manual for the ssd1306 C 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 v dd 2. send display off command 3. initialization 4. clear screen 5. power up vcc 6. delay 100ms (when v dd 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 v dd
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 10 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)
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 11 command application example command usage and explanation of an actual example 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); // se t 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.
oled push switches 64x48 monochrome (0.66) oled switches YOD1A sales@greatecs.com www.greatecs.com 12 reliability 1 contents of reliability test item conditions criteria high temperature operation 70 c, 240hrs the operational functions work 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 thermal shock -40 c <=> 85 c, 24 cycles 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 60 cd/m 2 , 50% checkerboard * storage life time 20,000 - hr 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 235c ? 5515% rh.

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