ST - Display Future

STST7735262K Color Single-Chip TFT Controller/Driver1IntroductionThe ST7735 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 396 source line and 162gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and accepts SerialPeripheral Interface (SPI), 8-bit/9-bit/16-bit/18-bit parallel interface. Display data can be stored in the on-chip display dataRAM of 132 x 162 x 18 bits. It can perform display data RAM read/write operation with no external operation clock tominimize power consumption. In addition, because of the integrated power supply circuits necessary to drive liquid crystal,it is possible to make a display system with fewer components.2FeaturesSingle chip TFT-LCD Controller/Driver with RAMOn-chip Display Data RAM (i.e. Frame Memory)-132 (H) x RGB x 162 (V) bitsLCD Driver Output Circuits:-Source Outputs: 132 RGB channelsBuilt-in Circuits-DC/DC converter-Adjustable VCOM generation-Non-volatile (NV) memory to store initial register setting-Oscillator for display clock generation-Gate Outputs: 162 channels-Factory default value (module ID, module version, etc)-Common electrode outputDisplay Resolution-132 (RGB) x 162are stored in NV memory-Timing controllerBuilt-in NV Memory for LCD Initial Register Setting-7-bits for ID2(GM[2:0] ”000”, DDRAM: 132 x 18-bits x 162)-128 (RGB) x 160-8-bits for ID3(GM[2:0] ”011”, DDRAM: 128 x 18-bits x 160)Display Colors (Color Mode)-Full Color: 262K, RGB (666) max., Idle Mode OFF-7-bits for VCOM adjustmentWide Supply Voltage Range-I/O Voltage (VDDI to DGND): 1.65V VDD-Color Reduce: 8-color, RGB (111), Idle Mode ONProgrammable Pixel Color Format (Color Depth) forVarious Display Data input Format-12-bit/pixel: RGB (444) using the 384k-bit frame(VDDI VDD)-Analog Voltage (VDD to AGND): 2.6V 3.3VOn-Chip Power System-Source Voltage (GVDD to AGND): 3.0V 5.0Vmemory and LUT-VCOM HIGH level (VCOMH to AGND): 2.5V to 5.0V-16-bit/pixel: RGB (565) using the 384k-bit frame-VCOM LOW level (VCOML to AGND): -2.4V to 0.0Vmemory and LUT-Gate driver HIGH level (VGH to AGND):-18-bit/pixel: RGB (666) using the 384k-bit frame 10.0V to 15Vmemory and LUTVarious Interfaces-Parallel 8080-series MCU Interface-Gate driver LOW level (VGL to AGND):-12.4V to -7.5VOperating Temperature: -30 C to 85 C(8-bit, 9-bit, 16-bit & 18-bit)-3-line serial interface-4-line serial interfaceDisplay Features-Programmable partial display duty-Line inversion, frame inversion-Support both normal-black & normal-white LC-Software programmable color depth modeST7735Parallel Interface: 8-bit/9-bit/16-bit/18-bitSerial Interface: 3-line/4-lineSitronix Technology Corp. reserves the right to change the contents in this document without prior notice.V2.112010-02-01

ST77353Pad arrangement3.1 Output Bump DimensionBoundary (Include scribe Lane)CLKHJAV2.1ItemSymbolSizeBump pitchA16 umBump widthC16 umBump heightH98 umBump gap1 (Vertical)J19 umBump gap2 (Horizontal)K16 umBump areaCxH1568 um2Chip Boundary (include scribe Lane)L59 um22010-02-01

ST77353.2 Input Bump DimensionC2C2A1A2C1HKK2K1K1LBoundary (Include scribe Lane)V2.1ItemSymbolSizeBump pitch 1A167 umBump pitch 2A250 umBump width 1C135 umBump width 2C240 umBump heightH90 umBump gapK20 umBump gap1K115 umBump gap2K232 umBump area 1C1 X H3150 um2Bump area 2C2 X H3690 um2Chip Boundary(include scribe Lane)L59 um32010-02-01

ST77353.3 Alignment Mark Dimension10 55 108015 1515 15202015 1515 158015 152015 1515 1580V2.12015 158042010-02-01

ST77353.4 Chip InformationChip size (um x um): 9900 x 670PAD coordinate: pad centerCoordinate origin: chip centerChip thickness (um): 300 (TYP)Bump height (um): 12 (TYP)Bump hardness (HV): 75 (TYP)V2.1No.186No.185No.759No.152010-02-01

ST77354Pad Center CoordinatesNo.PAD NameXYNo.PAD NameXYNo.PAD 1-231V2.162010-02-01

ST7735No.PAD NameXYNo.PAD NameXYNo.PAD 2010-02-01

ST7735No.PAD NameXYNo.PAD NameXYNo.PAD 110227110227110227110227110V2.182010-02-01

ST7735No.PAD NameXYNo.PAD NameXYNo.PAD -01

ST7735No.PAD NameXYNo.PAD NameXYNo.PAD 110227110227110227110227V2.1102010-02-01

ST7735No.PAD K-L4841-4841-220-220V2.1112010-02-01

ST7735Block diagramGVDD5162 Gate bufferVoltage reference396 Source bufferLevel shifterDACGamma circuitGate decoderLevel ShifterVCOMHData LatchGamma TableVcom generatorVCOMVCOMLDisplay Ram132 x 162 x 18bitsDisplay controlColor conversionLUT er 1/2/4C41NC22PC22NC23PMCU IFVDDVDDIAVDDVCLVGHVGLSMYSMXEXTC12IM [2:0]DC/X (SCL)CSXRDX (E)WRX (R/WX)GSSRGBLCMSDAD[17:0]V2.1C23N2010-02-01

ST77356Driver IC Pin Description6.1 Power Supply PinNameI/ODescriptionConnect pinVDDIPower supply for analog, digital system and booster circuit.VDDVDDIIPower supply for I/O system.VDDIAGNDISystem ground for analog system and booster circuit.GNDDGNDISystem ground for I/O system and digital system.GNDDescriptionConnect pin6.2 Interface logic pinNameI/OMCU Parallel interface bus and Serial interface selectIM2IIM2 ’1’, Parallel interfaceDGND/VDDIIM2 ’0’, Serial interface- MCU parallel interface type selection-If not used, please fix this pin at VDDI or DGND level.IM1,IM0IIM1IM0Parallel interface00MCU 8-bit parallel01MCU 16-bit parallel10MCU 9-bit parallel11MCU 18-bit parallelDGND/VDDI- SPI4W ’0’, 3-line SPI enable.SPI4WI- SPI4W ’1’, 4-line SPI enable.DGND/VDDI-If not used, please fix this pin at DGND level.-This signal will reset the device and it must be applied to properlyRESXIinitialize the chip.MCU-Signal is active low.CSXI-Chip selection pinMCU-Low enable.-Display data/command selection pin in MCU interface.D/CX(SCL)-D/CX ’1’: display data or parameter.I-D/CX ’0’: command data.MCU-In serial interface, this is used as SCL.-If not used, please fix this pin at VDDI or DGND level.RDXWRX(D/CX)D[17:0]V2.1I-Read enable in 8080 MCU parallel interface.-If not used, please fix this pin at VDDI or DGND level.MCU-Write enable in MCU parallel interface.I-In 4-line SPI, this pin is used as D/CX (data/ command selection).MCU-If not used, please fix this pin at VDDI or DGND level.I/O-D[17:0] are used as MCU parallel interface data bus.13MCU2010-02-01

ST7735-D0 is the serial input/output signal in serial interface mode.-In serial interface, D[17:1] are not used and should be fixed at VDDI orDGND level.-Tearing effect output pin to synchronies MCU to frame rate, activatedTEOby S/W command.MCU-If not used, please open this pin.-Monitoring pin of internal oscillator clock and is turned ON/OFF byOSCOS/W command.-When this pin is inactive (function OFF), this pin is DGND level.--If not used, please open this pin.Note1. When in parallel mode, no use data pin must be connected to “1” or “0”.Note2. When CSX ”1”, there is no influence to the parallel and serial interface.V2.1142010-02-01

ST77356.3 Mode selection pinNameI/ODescriptionConnect pin-During normal operation, please open this pinEXTCIEXTCEnable/disable modification of extend command0System function command list can be used.1All command list can be used.Open-Panel resolution selection pins.GM2,GM1,GM0IGGGSelection of panel resolutionMMM210000132RGB x 162 (S1 S396 & G1 G162 output)011128RGB x 160 (S7 S390 & G2 G161 output)VDDI/DGND-RGB direction select H/W pin for color filter setting.SRGBISRGBRGB arrangement0S1, S2, S3 filter order ’R’, ’G’, ’B’1S1, S2, S3 filter order ‘B’, ‘G’, ‘R’VDDI/DGND-Module source output direction H/W selection pin.SMXSMXScanning direction of source outputGM ‘000’GM ‘011’0S1 - S396S7 - S3901S396 - S1S390 - S7IVDDI/DGND-Module Gate output direction H/W selection pin.SMYSMYScanning direction of gate outputGM ‘000’GM ‘011’0G1 - G162G2 - G1611G162 - G1G161 - G2IVDDI/DGND-Liquid crystal (LC) type selection pins.LCMILCMSelection of LC type0Normally white LC type1Normally black LC typeVDDI/DGND-Gamma curve selection pin.GSV2.1IGSSelection of gamma curve0GC0 1.0, GC1 2.5, GC2 2.2, GC3 1.81GC0 2.2, GC1 1.8, GC2 2.5, GC3 1.015VDDI/DGND2010-02-01

ST7735Input pin to select horizontal line number in TE signal.TESELIThis pin is only for GM[2:0] ’000’ modeVDDI/DGNDTESEL ’0’ , TE output 162 linesTESEL ’1’ , TE output 160 linesV2.1162010-02-01

ST77356.4 Driver output pinsNameI/ODescriptionS1 to S396O- Source driver output pins.-G1 to G162O- Gate driver output pins.-VCI1I/O- Hi-Z-Connect pin- Power input pin for analog circuits.AVDDI- In normal usage, connect it to AVDDO.AVDDO- AVDD 5.3V.AVDDOOVCLOVGHIVGHOO- Output of step-up circuit 1- Connect a capacitor for stabilization.Capacitor- A power supply pin for generating VCOML.- Connect a capacitor for stabilization.- Power input pin for gate driver circuit.- In normal usage, connect it to VGHO.- Positive output pin of the step-up circuit 2.- Connect a capacitor for stabilization.CapacitorVGHOCapacitor- Power input pin for gate driver circuit.VGLI- Negative output of the step-up circuit 2 is connected inside thedriver.Capacitor- Connect a capacitor for stabilization.VREFO- A reference voltage for power system.-This test pin for Driver vender test used.-- A power output of grayscale voltage generator.GVDDO- When internal GVDD generator is not used, connect an external-power supply (AVDD-0.5V) to this pin.- Positive vol

ST ST7735 262K Color Single-Chip TFT Controller/Driver V2.1 1 2010-02-01 1 Introduction The ST7735 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD.