Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
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 10 of 233
4. Pin Descriptions
Power Supply Pins
Pin Name I/O Type Descriptions
VDDI I P
Low voltage power supply for interface logic circuits (1.65 ~ 3.3 V)
VDDI_LED I
Power supply for LED driver interface. (1.65 ~ 3.3 V)
If LED driver is not used, fix this pin at VDDI.
VCI I Analog Power High voltage power supply for analog circuit blocks (2.5 ~ 3.3 V)
Vcore O Digital Power
Regulated Low voltage level for interface circuits
Connect a capacitor for stabilization.
Don’t apply any external power to this pad
VSS3 I I/O Ground System ground level for I/O circuits.
VSS I Digital Ground System ground level for logic blocks
VSSA I Analog Ground
System ground level for analog circuit blocks
Connect to VSS on the FPC to prevent noise.
VSSC I Analog Ground
System ground level for analog circuit blocks
Connect to VSS on the FPC to prevent noise
Interface Logic Signals
Pin Name I/O Type Descriptions
IM[3:0] I
(VDDI/VSS)
- Select the MCU interface mode
DB Pin in use
IM3 IM2 IM1 IM0 MCU-Interface Mode
Register/Content GRAM
0 0 0 0
80 MCU 8-bit bus
interface
D[7:0] D[7:0]
0 0 0 1
80 MCU 16-bit bus
interface
D[7:0] D[15:0]
0 0 1 0
80 MCU 9-bit bus
interface
D[7:0] D[8:0]
0 0 1 1
80 MCU 18-bit bus
interface
D[7:0] D[17:0]
0 1 0 1
3-wire 9-bit data serial
interface
SDA: In/OUT
0 1 1 0
4-wire 8-bit data serial
interface
SDA: In/OUT
1 0 0 0
80 MCU 16-bit bus
interface
D[8:1]
D[17:10],
D[8:1]
1 0 0 1
80 MCU 8-bit bus
interface
D[17:10] D[17:10]
1 0 1 0
80 MCU 18-bit bus
interface
D[8:1] D[17:0]
1 0 1 1
80 MCU 9-bit bus
interface
D[17:10] D[17:9]
1 1 0 1
3-wire 9-bit data serial
interface
SDI: In
SDO: Out
1 1 1 0
4-wire 8-bit data serial
interface
SDI: In
SDO: Out
MPU Parallel interface bus and serial interface select
If use RGB Interface must select serial interface.
* : Fix this pin at VDDI or VSS.