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 11 of 233
RESX I
MCU
(VDDI/VSS)
This signal will reset the device and must be applied to properly
initialize the chip.
Signal is active low.
EXTC I
MCU
(VDDI/VSS)
Extended command set enable.
Low: extended command set is discarded.
High: extended command set is accepted.
Please connect EXTC to VDDI to read/write extended registers
(RB0h~RCFh, RE0h~RFFh)
CSX I
MCU
(VDDI/VSS)
Chip select input pin (“Low” enable).
This pin can be permanently fixed “Low” in MPU interface mode only.
* note1,2
D/CX (SCL) I
MCU
(VDDI/VSS)
This pin is used to select “Data or Command” in the parallel interface
or 4-wire 8-bit serial data interface.
When DCX = ’1’, data is selected.
When DCX = ’0’, command is selected.
This pin is used serial interface clock in 3-wire 9-bit / 4-wire 8-bit
serial data interface.
If not used, this pin should be connected to VDDI or VSS.
RDX I
MCU
(VDDI/VSS)
8080- /8080- system (RDX): Serves as a read signal and MCU
read data at the rising edge.
Fix to VDDI level when not in use.
WRX
(D/CX)
I
MCU
(VDDI/VSS)
- 8080- /8080- system (WRX): Serves as a write signal and
writes data at the rising edge.
- 4-line system (D/CX): Serves as command or parameter select.
Fix to VDDI level when not in use.
D[17:0] I/O
MCU
(VDDI/VSS)
18-bit parallel bi-directional data bus for MCU system and RGB
interface mode
Fix to VSS level when not in use
SDI/SDA I/O
MCU
(VDDI/VSS)
When IM[3] : Low, Serial in/out signal.
When IM[3] : High, Serial input signal.
The data is applied on the rising edge of the SCL signal.
If not used, fix this pin at VDDI or VSS.
SDO O
MCU
(VDDI/VSS)
Serial output signal.
The data is outputted on the falling edge of the SCL signal.
If not used, open this pin
TE O
MCU
(VDDI/VSS)
Tearing effect output pin to synchronize MPU to frame writing,
activated by S/W command. When this pin is not activated, this pin is
low.
If not used, open this pin.
DOTCLK I
MCU
(VDDI/VSS)
Dot clock signal for RGB interface operation.
Fix to VDDI or VSS level when not in use.
VSYNC I
MCU
(VDDI/VSS)
Frame synchronizing signal for RGB interface operation.
Fix to VDDI or VSS level when not in use.
HSYNC I
MCU
(VDDI/VSS)
Line synchronizing signal for RGB interface operation.
Fix to VDDI or VSS level when not in use.
DE I
MCU
(VDDI/VSS)
Data enable signal for RGB interface operation.
Fix to VDDI or VSS level when not in use.