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ILI9341_DS.pdf
ILI9341
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
Specification
Version: V1.05
Document No.: ILI9341_DS_V1.05.pdf
ILI TECHNOLOGY CORP.
8F, No. 38, Taiyuan St., Jhubei City,
Hsinchu Country 302 Taiwan R.O.C.
Tel.886-3-5600099; Fax.886-3-5670585
http://www.ilitek.com
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
Table of Contents
Section Page
1.
Introduction.................................................................................................................................................... 7
2. Features ........................................................................................................................................................ 7
3. Block Diagram ............................................................................................................................................... 9
4. Pin Descriptions .......................................................................................................................................... 10
5. Pad Arrangement and Coordination............................................................................................................ 15
6. Block Function Description.......................................................................................................................... 24
7. Function Description ................................................................................................................................... 26
7.1. MCU interfaces .............................................................................................................................. 26
7.1.1. MCU interface selection ...................................................................................................... 26
7.1.2. 8080-
Series Parallel Interface........................................................................................ 27
Ⅰ
Ⅱ
7.1.3. Write Cycle Sequence ......................................................................................................... 28
7.1.4. Read Cycle Sequence......................................................................................................... 29
7.1.5. 8080-
Series Parallel Interface........................................................................................ 30
7.1.6. Write Cycle Sequence ......................................................................................................... 31
7.1.7. Read Cycle Sequence......................................................................................................... 32
7.1.8. Serial Interface .................................................................................................................... 33
7.1.9. Write Cycle Sequence ......................................................................................................... 33
7.1.10. Read Cycle Sequence......................................................................................................... 36
7.1.11. Data Transfer Break and Recovery ..................................................................................... 40
7.1.12. Data Transfer Pause............................................................................................................ 42
7.1.13. Serial Interface Pause (3_wire) ........................................................................................... 43
7.1.14. Parallel Interface Pause ...................................................................................................... 43
7.1.15. Data Transfer Mode............................................................................................................. 44
7.1.16. Data Transfer Method 1....................................................................................................... 44
7.1.17. Data Transfer Method 2....................................................................................................... 44
7.2. RGB Interface ................................................................................................................................ 45
7.2.1. RGB Interface Selection ...................................................................................................... 45
7.2.2. RGB Interface Timing .......................................................................................................... 49
7.3. VSYNC Interface............................................................................................................................ 52
7.4. Color Depth Conversion Look Up Table......................................................................................... 55
7.5. Display Data RAM (DDRAM) ......................................................................................................... 59
7.6. Display Data Format ...................................................................................................................... 60
7.6.1. 3-line Serial Interface........................................................................................................... 60
7.6.2. 4-line Serial Interface........................................................................................................... 63
7.6.3. 8-bit Parallel MCU Interface ................................................................................................ 65
7.6.4. 9-bit Parallel MCU Interface ................................................................................................ 67
7.6.5. 16-bit Parallel MCU Interface .............................................................................................. 70
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 2 of 239
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
7.6.6. 18-bit Parallel MCU Interface .............................................................................................. 76
7.6.7. 6-bit Parallel RGB Interface................................................................................................. 80
7.6.8. 16-bit Parallel RGB Interface............................................................................................... 82
7.6.9. 18-bit Parallel RGB Interface............................................................................................... 82
8. Command.................................................................................................................................................... 83
8.1. Command List ................................................................................................................................ 83
8.2. Description of Level 1 Command................................................................................................... 89
8.2.1. NOP (00h)............................................................................................................................ 89
8.2.2. Software Reset (01h)........................................................................................................... 90
8.2.3. Read display identification information (04h) ...................................................................... 91
8.2.4. Read Display Status (09h)................................................................................................... 92
8.2.5. Read Display Power Mode (0Ah) ........................................................................................ 94
8.2.6. Read Display MADCTL (0Bh).............................................................................................. 95
8.2.7. Read Display Pixel Format (0Ch) ........................................................................................ 96
8.2.8. Read Display Image Format (0Dh)...................................................................................... 97
8.2.9. Read Display Signal Mode (0Eh) ........................................................................................ 98
8.2.10. Read Display Self-Diagnostic Result (0Fh) ......................................................................... 99
8.2.11. Enter Sleep Mode (10h) .................................................................................................... 100
8.2.12. Sleep Out (11h).................................................................................................................. 101
8.2.13. Partial Mode ON (12h)....................................................................................................... 103
8.2.14. Normal Display Mode ON (13h) ........................................................................................ 104
8.2.15. Display Inversion OFF (20h).............................................................................................. 105
8.2.16. Display Inversion ON (21h) ............................................................................................... 106
8.2.17. Gamma Set (26h) .............................................................................................................. 107
8.2.18. Display OFF (28h) ............................................................................................................. 108
8.2.19. Display ON (29h) ............................................................................................................... 109
8.2.20. Column Address Set (2Ah) ................................................................................................ 110
8.2.21. Page Address Set (2Bh) .................................................................................................... 112
8.2.22. Memory Write (2Ch) .......................................................................................................... 114
8.2.23. Color Set (2Dh).................................................................................................................. 115
8.2.24. Memory Read (2Eh) .......................................................................................................... 116
8.2.25. Partial Area (30h)............................................................................................................... 118
8.2.26. Vertical Scrolling Definition (33h) ...................................................................................... 120
8.2.27. Tearing Effect Line OFF (34h) ........................................................................................... 124
8.2.28. Tearing Effect Line ON (35h) ............................................................................................. 125
8.2.29. Memory Access Control (36h) ........................................................................................... 127
8.2.30. Vertical Scrolling Start Address (37h) ................................................................................ 129
8.2.31. Idle Mode OFF (38h) ......................................................................................................... 131
8.2.32. Idle Mode ON (39h) ........................................................................................................... 132
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 3 of 239
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
8.2.33. COLMOD: Pixel Format Set (3Ah) .................................................................................... 134
8.2.34. Write_Memory_Continue (3Ch)......................................................................................... 135
8.2.35. Read_Memory_Continue (3Eh)......................................................................................... 137
8.2.36. Set_Tear_Scanline (44h) ................................................................................................... 139
8.2.37. Get_Scanline (45h)............................................................................................................ 140
8.2.38. Write Display Brightness (51h) .......................................................................................... 141
8.2.39. Read Display Brightness (52h).......................................................................................... 142
8.2.40. Write CTRL Display (53h).................................................................................................. 143
8.2.41. Read CTRL Display (54h) ................................................................................................. 145
8.2.42. Write Content Adaptive Brightness Control (55h).............................................................. 147
8.2.43. Read Content Adaptive Brightness Control (56h) ............................................................. 148
8.2.44. Write CABC Minimum Brightness (5Eh)............................................................................ 149
8.2.45. Read CABC Minimum Brightness (5Fh)............................................................................ 150
8.2.46. Read ID1 (DAh) ................................................................................................................. 151
8.2.47. Read ID2 (DBh) ................................................................................................................. 152
8.2.48. Read ID3 (DCh) ................................................................................................................. 153
8.3. Description of Level 2 Command................................................................................................. 154
8.3.1. RGB Interface Signal Control (B0h) .................................................................................. 154
8.3.2. Frame Rate Control (In Normal Mode/Full Colors) (B1h).................................................. 155
8.3.3. Frame Rate Control (In Idle Mode/8 colors) (B2h) ............................................................ 157
8.3.4. Frame Rate control (In Partial Mode/Full Colors) (B3h) .................................................... 159
8.3.5. Display Inversion Control (B4h)......................................................................................... 161
8.3.6. Blanking Porch Control (B5h) ............................................................................................ 162
8.3.7. Display Function Control (B6h).......................................................................................... 164
8.3.8. Entry Mode Set (B7h) ........................................................................................................ 168
8.3.9. Backlight Control 1 (B8h)................................................................................................... 169
8.3.10. Backlight Control 2 (B9h)................................................................................................... 170
8.3.11. Backlight Control 3 (BAh) .................................................................................................. 172
8.3.12. Backlight Control 4 (BBh) .................................................................................................. 173
8.3.13. Backlight Control 5 (BCh) .................................................................................................. 175
8.3.14. Backlight Control 7 (BEh) .................................................................................................. 176
8.3.15. Backlight Control 8 (BFh) .................................................................................................. 177
8.3.16. Power Control 1 (C0h)....................................................................................................... 178
8.3.17. Power Control 2 (C1h)....................................................................................................... 179
8.3.18. VCOM Control 1(C5h) ....................................................................................................... 180
8.3.19. VCOM Control 2(C7h) ....................................................................................................... 182
8.3.20. NV Memory Write (D0h) .................................................................................................... 184
8.3.21. NV Memory Protection Key (D1h) ..................................................................................... 185
8.3.22. NV Memory Status Read (D2h) ......................................................................................... 186
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 4 of 239
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
8.3.23. Read ID4 (D3h) ................................................................................................................. 187
8.3.24. Positive Gamma Correction (E0h)..................................................................................... 188
8.3.25. Negative Gamma Correction (E1h) ................................................................................... 189
8.3.26. Digital Gamma Control 1 (E2h) ......................................................................................... 190
8.3.27. Digital Gamma Control 2(E3h) .......................................................................................... 191
8.3.28. Interface Control (F6h) ...................................................................................................... 192
8.4 Description of extend register command……………………………………………………………….195
8.4.1. Power control A (CBh)…………………………………………………………………………..195
8.4.2. Power control B (CFh)…………………………………………………………………………..196
8.4.3. Driver timing control A (E8h)……………………………………….…………………………...197
8.4.4. Driver timing control B (EAh)…………...............................................................................198
8.4.5. Power on sequence control (EDh)……………………………………………………………..199
8.4.6. Enable 3 gamma (F2h)…………………………………………………………………………..200
8.4.7. Pump ratio control (F7h)………………………………………………………………………...201
9. Display Data RAM ..................................................................................................................................... 202
9.1. Configuration ................................................................................................................................ 202
9.2. Memory to Display Address Mapping .......................................................................................... 203
9.2.1. Normal Display ON or Partial Mode ON, Vertical Scroll Mode OFF.................................. 203
9.2.2. Vertical Scroll Mode........................................................................................................... 204
9.2.3. Vertical Scroll Example...................................................................................................... 205
9.2.4. Case1: TFA+VSA+BFA < 320 ........................................................................................... 205
9.2.5. Case2: TFA+VSA+BFA = 320 (Rolling Scrolling) .............................................................. 206
9.3. MCU to memory write/read direction ........................................................................................... 207
10. Tearing Effect Output................................................................................................................................. 209
10.1. Tearing Effect Line Modes............................................................................................................ 209
10.2. Tearing Effect Line Timings .......................................................................................................... 210
11. Sleep Out – Command and Self-Diagnostic Functions of the Display Module......................................... 211
11.1. Register loading Detection ........................................................................................................... 211
11.2. Functionality Detection................................................................................................................. 212
12. Power ON/OFF Sequence ........................................................................................................................ 213
12.1. Case 1 – RESX line is held High or Unstable by Host at Power ON ........................................... 213
12.2. Case 2 – RESX line is held Low by Host at Power ON ............................................................... 214
12.3. Uncontrolled Power Off ................................................................................................................ 215
13. Power Level Definition .............................................................................................................................. 216
13.1. Power Levels................................................................................................................................ 216
13.2. Power Flow Chart......................................................................................................................... 217
14. Gamma Curves Selection ......................................................................................................................... 218
14.1. Gamma Default Values (for NW type LC) .................................................................................... 218
14.2. Gamma Curves ............................................................................................................................ 219
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 5 of 239
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
14.2.1. Gamma Curve 1 (GC0), applies the function y=x2.2 .......................................................... 219
14.3. Gamma Curves ............................................................................................................................ 220
14.3.1. Grayscale Voltage Generation........................................................................................... 220
14.3.2. Positive Gamma Correction............................................................................................... 221
14.3.3. Negative Gamma Correction ............................................................................................. 222
15. Reset ......................................................................................................................................................... 223
15.1. Registers ...................................................................................................................................... 223
15.2. Output Pins, I/O Pins.................................................................................................................... 224
15.3. Input Pins ..................................................................................................................................... 224
15.4. Reset Timing ................................................................................................................................ 225
16. Configuration of Power Supply Circuit ...................................................................................................... 226
17. NV Memory Programming Flow ................................................................................................................ 227
18. Electrical Characteristics........................................................................................................................... 229
18.1. Absolute Maximum Ratings ......................................................................................................... 229
18.2. DC Characteristics ....................................................................................................................... 230
19.2.1. General DC Characteristics............................................................................................... 230
18.3. AC Characteristics ....................................................................................................................... 232
19.3.1. Display Parallel 18/16/9/8-bit Interface Timing Characteristics (8080-
system) ........... 232
19.3.2. Display Parallel 18/16/9/8-bit Interface Timing Characteristics(8080-
system) ............ 234
19.3.3. Display Serial Interface Timing Characteristics (3-line SPI system) ................................. 236
19.3.4. Display Serial Interface Timing Characteristics (4-line SPI system) ................................. 237
19.3.5. Parallel 18/16/6-bit RGB Interface Timing Characteristics ................................................ 238
19. Revision History ........................................................................................................................................ 239
Ⅰ
Ⅱ
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 6 of 239
1. Introduction
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
ILI9341 is a 262,144-color single-chip SOC driver for a-TFT liquid crystal display with resolution of 240RGBx320
dots, comprising a 720-channel source driver, a 320-channel gate driver, 172,800 bytes GRAM for graphic
display data of 240RGBx320 dots, and power supply circuit.
ILI9341 supports parallel 8-/9-/16-/18-bit data bus MCU interface, 6-/16-/18-bit data bus RGB interface and
3-/4-line serial peripheral interface (SPI). The moving picture area can be specified in internal GRAM by window
address function. The specified window area can be updated selectively, so that moving picture can be
displayed simultaneously independent of still picture area.
ILI9341 can operate with 1.65V ~ 3.3V I/O interface voltage and an incorporated voltage follower circuit to
generate voltage levels for driving an LCD. ILI9341 supports full color, 8-color display mode and sleep mode for
precise power control by software and these features make the ILI9341 an ideal LCD driver for medium or small
size portable products such as digital cellular phones, smart phone, MP3 and PMP where long battery life is a
major concern.
2. Features
Display resolution: [240xRGB](H) x 320(V)
Output:
720 source outputs
320 gate outputs
Common electrode output (VCOM)
a-TFT LCD driver with on-chip full display RAM: 172,800 bytes
System Interface
8-bits, 9-bits, 16-bits, 18-bits interface with 8080-
6-bits, 16-bits, 18-bits RGB interface with graphic controller
3-line / 4-line serial interface
/8080-
series MCU
Full color mode (Idle mode OFF): 262K-color (selectable color depth mode by software)
Reduce color mode (Idle mode ON): 8-color
Display mode:
Power saving mode:
Sleep mode
On chip functions:
Ⅰ
Ⅱ
VCOM generator and adjustment
Timing generator
Oscillator
DC/DC converter
Line/frame inversion
1 preset Gamma curve with separate RGB Gamma correction
Content Adaptive Brightness Control
MTP (3 times):
8-bits for ID1, ID2, ID3
7-bits for VCOM adjustment
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 7 of 239
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
Low -power consumption architecture
Low operating power supplies:
VDDI = 1.65V ~ 3.3V (logic)
VCI = 2.5V ~ 3.3V (analog)
LCD Voltage drive:
Source/VCOM power supply voltage
AVDD - GND = 4.5V ~ 5.5V
VCL - GND = -2.0V ~ -3.0V
Gate driver output voltage
VGH - GND = 10.0V ~ 20.0V
VGL - GND = -5.0V ~ -15.0V
VGH - VGL
2V
3
VCOM driver output voltage
VCOMH = 3.0V ~ (AVDD – 0.5)V
VCOML = (VCL+0.5)V ~ 0V
VCOMH - VCOML
6.0V
Operate temperature range: -40
a-Si TFT LCD storage capacitor : Cst on Common structure only
to 85
≦
≦
℃
℃
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 8 of 239
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