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OKRA OKRA0750RWU790F30, User Manual

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10.2 OTP Operation Reference Program Code

BUSY=Low

BUSY=High

BUSY=Low

BUSY=High

Deep sleep

SPI (0x07,0xa5)

Power off

SPI (0x02)

Check BUSY pin

Data start transmission

SPI (0x10&0x13)

Transport B/W /R data

System

power

Reset the EPD driver IC

Power on

SPI ( 0x04)

Display refresh

SPI (0x12)

Check BUSY pin

EPD Module User Manual

2.5$7HFKQRORJLHV

5HY

34

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41

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Summary of Contents for OKRA0750RWU790F30

Page 1: ...cification for 7 5 inch EPD Model NO OKRA0750RWU790F30 OKRA s Confirmation Prepared by Checked by Approved by Customer approval Customer Approved by Date EPD Module User Manual 2 5 7HFKQRORJLHV 5HY 1...

Page 2: ...Revision History Version Content Date Producer 2 0 New release 2020 11 13 EPD Module User Manual 2 5 7HFKQRORJLHV 5HY 2 41...

Page 3: ...election 11 6 3 2 MCU Serial Interface 4 wire SPI 11 6 3 3 MCU Serial Interface 3 wire SPI 12 7 Command Table 14 8 Block Diagram 31 9 Typical Application Circuit with SPI Interface 32 10 Typical Opera...

Page 4: ...36 12 6 Inspection standard 37 12 6 1 Electric inspection standard 37 12 6 2 Appearance inspection standard 38 13 Packaging 40 14 Handling Safety and Environment Requirements 41 EPD Module User Manual...

Page 5: ...devices such as Electronic Shelf Label ESL System 2 Features 480 800 pixels display High contrast High reflectance Ultra wide viewing angle Ultra low power consumption Pure reflective mode Bi stable...

Page 6: ...CR Contrast Ratio Indoor 15 1 20 1 3 1 3 2 GN 2Grey Level Life Temp 23 3 C Humidity 55 10 RH 5years 3 3 Notes 3 1 Luminance meter Eye One Pro Spectrophotometer 3 2 CR Surface Reflectance with all whit...

Page 7: ...mm XX 0 20mm X 0 4mm ANGLES 5 RoHS EPD A 20 07 10 MODIFICATION REV DATE Confirmation 1 DISPLAY MODULE 7 5 ARRAY FOR EPD 2 DRIVER IC UC8179C NOTE 3 RESOLUTION 480gateX800source 4 PIXEL SIZE 0 204mmX0 2...

Page 8: ...e Low Note 5 3 11 D C I Data Command control pin Note 5 2 12 CS I Chip select input pin Note 5 1 13 SCL I Serial Clock pin SPI 14 SDA I O Serial Data pin SPI 15 VDDIO P Power Supply for interface logi...

Page 9: ...ensor Note 5 5 Bus interface selection pin BS1 State MCU Interface L 4 lines serial peripheral interface SPI 8 bits SPI H 3 lines serial peripheral interface SPI 9 bits SPI 6 Electrical Characteristic...

Page 10: ...g current Iopr_VCI VCI 3 3V 10 mA Image update time 23 C 17 sec Typical peak current Iopr_VCI 2 3 3 6v 100 200 mA Sleep mode current Islp_VCI DC DC off No clock No input load Ram data retain 20 uA Dee...

Page 11: ...he clock rising edge When too many parameters are input the chip accepts only defined parameters and ignores undefined ones 6 3 2 MCU Serial Interface 4 wire SPI Data Command is recognized with DC pin...

Page 12: ...vent malfunction due to noise it is recommended to set the CSB signal to HIGH every 9 bits The serial counter is reset at the rising edge of the CSB signal The MSB bit of data will be output at SDA pi...

Page 13: ...Serial Interface Timing Characteristics EPD Module User Manual 2 5 7HFKQRORJLHV 5HY 13 41...

Page 14: ...ource Shift Direction 0 Shift left First data to Last data Sn 1 Sn 2 Sn 3 S0 1 Shift right Default First data to Last data S0 S1 S2 Sn 1 SHD_N Booster Switch 0 Booster OFF 1 Booster ON Default When SH...

Page 15: ...VDHR pins 1 Internal DC DC function for generating VDHR Default VS_EN Source power selection 0 External source power from VDH VDL pins 1 Internal DC DC function for generating VDH VDL Default VG_EN G...

Page 16: ...EPD Module User Manual 2 5 7HFKQRORJLHV 5HY 16 41...

Page 17: ...OWER MANAGEMENT section for the sequence This command will turn on booster controller regulators and temperature sensor will be activated for one time sensing before enabling booster When all voltages...

Page 18: ...se C1 setting always is applied for booster phase C 1 Booster phase C2 enable If temperature temperature boundary phase C2 RE7h 7 0 phase C1 setting is applied for booster phase C If temperature tempe...

Page 19: ...9 DISPLAY REFRESH DRF R12H While user sent this command driver will refresh display data VCOM according to SRAM data and LUT After Display Refresh command BUSY_N signal will become 0 and the refreshin...

Page 20: ...6 32 38 44 50 56 D 7 6 D 5 4 D 3 2 D 1 0 Level Selection 00b VCOM_DC 01b VDH VCOM_DC VCOMH 10b VDL VCOM_DC VCOML 11b Floating Bytes 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 Number of F...

Page 21: ...tes how many times that phase will repeat Bytes 2 8 14 20 26 32 38 Level Selection 00b GND 01b VDH 10b VDL 11b VDHR Bytes 3 6 9 12 15 18 21 24 27 30 33 36 39 42 Number of Frames 0000 0000b 0 frame 111...

Page 22: ...frame 1111 1111b 255 frames Bytes 7 13 19 25 31 37 43 49 55 61 Times to Repeat 0000 0000b 0 time 1111 1111b 255 times If KW R 0 KWR mode all 10 groups are used If KW R 1 KW mode only 7 groups are used...

Page 23: ...phase will repeat Bytes 2 8 14 20 26 32 38 Level selection BD_EN 0 00b VCOM 01b VDH 10b VDL 11b VDHR BD_EN 1 00b VCOM 01b VBH VCOM VDL 10b VBL VCOM VDH 11b VDHR Bytes 3 6 9 12 15 18 21 24 27 30 33 36...

Page 24: ...ON 0 for state 1 STATE_XON 1 for state 2 00 0000 0000b no All Gate ON 00 0000 0001b State 1 All Gate ON 00 0000 0011b State 1 and State2 All Gate ON 18 PLL CONTROL PLL R30 H The command controls the P...

Page 25: ...ates the interval of VCOM and data output When setting the vertical back porch the total blanking will be kept 20 Hsync BDZ Border Hi Z control 0 Border output Hi Z disabled default 1 Border output Hi...

Page 26: ...data to OLD data disabled default 1 Copy NEW data to OLD data enabled DDX 1 0 Data polarity Under KWR mode KW R 0 DDX 1 is for RED data DDX 0 is for K W data Under KW mode KW R 1 DDX 1 0 is for KW mod...

Page 27: ...21 TCON S ETTING TCON R60 H EPD Module User Manual 2 5 7HFKQRORJLHV 5HY 27 41...

Page 28: ...9 0 272 272 1 271 Source First active source S0 Last active source S127 HRES 9 3 16 16 8 1 127 23 GATE SOURCE START SETTING GSST R65 H This command defines resolution start gate source position HST 9...

Page 29: ...E2 or 0x17E0 0x17E2 CHIP_REV 7 0 Chip Revision fixed at 00001100b 25 VCOM_DC SETTING VDCS R82 H 26 PROGRAM MODE PGM RA0 H After this command is issued the chip would enter the program mode After the p...

Page 30: ...The BUSY_N flag would fall to 0 until the programming is completed 28 READ OTP DATA ROTP RA2 H EPD Module User Manual 2 5 7HFKQRORJLHV 5HY 30 41...

Page 31: ...8 Block Diagram EPD Module User Manual 2 5 7HFKQRORJLHV 5HY 31 41...

Page 32: ...spare part C4 C6 1uF Voltage Rating 10v C1 C2 C3 C5 C7 C8 C9 4 7uF Voltage Rating 25v R1 0 47Ohm NO D1 D2D3 Diode MBR0530 VR 20V IR 500mA Ir 1mA VR 15V TA 100 Q1 NMOS Vishay Si1308EDL VDS 20V ID 500m...

Page 33: ...erating Sequence 10 1 LUT from OTP Operation Flow Load image data System power Reset the EPD driver IC Power on Display refresh Turn off Enter into deep sleep mode EPD Module User Manual 2 5 7HFKQRORJ...

Page 34: ...USY High Deep sleep SPI 0x07 0xa5 Power off SPI 0x02 Check BUSY pin Data start transmission SPI 0x10 0x13 Transport B W R data System power Reset the EPD driver IC Power on SPI 0x04 Display refresh SP...

Page 35: ...0 240h 6 High Temperature High Humidity Storage T 50 C RH 80 240h Test in white pattern 7 Temperature Cycle 1 cycle 25 C 30min 60 C 30 min 50 cycles Test in white pattern 8 ESD Gun Air 4KV Contact 2KV...

Page 36: ...lowing transition from horizontal 3 scale pattern to vertical 3 scale pattern The listed optical characteristics are only guaranteed under the controller waveform provided by OKRA 1 Measurement Instru...

Page 37: ...m 0 15mm W 0 5mm N 4 allowable L 4 0mm W 0 5mm is not allowed 4 Ghost image Allowed in switching process MI Visual inspection 5 Flash dot Multilateral Flash points are allowed when switching screens M...

Page 38: ...Dirty Allowed if can be removed MI Zone A Zone B 4 Chips Scratch Edge crown X 3mm Y 0 5mm 2mm X or 2mm Y not Allow W 0 1mm L 5mm n 2 Edge crown X 0 3mm Y 3mm MI Visual Microscope Zone A Zone B 5 TFT C...

Page 39: ...Not Allow PCB Curl 1 MI Visual Ruler Zone B 12 Edge glue height Edge glue bubble Edge Adhesives H PS surface Including protect film Edge adhesives seep in 1 2 Margin width Length excluding Edge adhesi...

Page 40: ...aterials List List Model Materials Q ty Unit Piece Piece Piece Piece Piece Piece corrugate corrugate EPD PACKING INSTRUCTION Customer Code Ref P N P N Type GLASS PKG Method Blister BACK Marking Pull T...

Page 41: ...iven are in accordance with the Absolute Maximum Rating System IEC 134 Stress above one or more of the limiting values may cause permanent damage to the device These are stress ratings only and operat...

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