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 13 of 233
LCD Driver Input/Output Pins
Pin Name I/O Type Descriptions
S720~S1 O Source
Source output signals..
Leave the pin to open when not in use.
G320~G1 O Gate
Gate output signals.
Leave the pin to open when not in use.
AVDD O
Power
Stabilizing
capacitor
Output voltage of 1st step up circuit (2 x VCI). Input voltage to 2nd step up
circuit. Generated power output pad for source driver block. Connect this
pad to the capacitor for stabilization.
VGH O
Power
Stabilizing
capacitor
Power supply for the gate driver.
Adjust the VGH level with the BT[2:0] bits.
Connect this pad with a stabilizing capacitor.
VGL O
Power
Stabilizing
capacitor
Power supply for the gate driver.
Adjust the VGL level with the BT[2:0] bits.
Connect this pad with a stabilizing capacitor.
VCL 0
Power
Stabilizing
capacitor
Power supply for VCOML.
VCL = 0~ - VCI
Connect this pad with a stabilizing capacitor.
C11P, C11M
C12P, C12M
P
Stabilizing
capacitor
Connect the charge-pumping capacitor for generating AVDD level.
C21P, C21M
C22P, C22M
P
Stabilizing
capacitor
Connect the charge-pumping capacitor for generating VGH, VGL level.
GVDD O
High reference voltage for grayscale voltage generator.
Internal register can be used to adjust the voltage.
VCOM O
Power supply pad for the TFT- display counter electrode.
Charge recycling method is used with VCI and VSSA voltage.
Connect this pad to the TFT-display counter electrode.
LEDPWM O
Output pin for PWM (Pulse Width Modulation) signal of LED driving.
If not used, open this pad.
LEDON O
Output pin for enabling LED driving.
If not used, open this pad.
Test Pins
Pin Name I/O Type Descriptions
DUMMY - Open
Input pads used only for test purpose at IC-side.
During normal operation, leave these pads open.