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LCD PIN Function (LVDS 40 PIN)
Pin NO. |
Symbol |
Description |
1 |
VCOM |
Common voltage |
2~3 |
VDD |
Digital Power |
4 |
NC |
No connection |
5 |
Reset |
Global reset pin. Active Low to enter Reset State. Normally pull high. |
6 |
STBYB |
Standby mode, normally pull high |
7 |
GND |
Ground level for analog block |
8 |
NIND0 |
Negative LVDS Differential Data Inputs |
9 |
PIND0 |
Positive LVDS Differential Data Inputs |
10 |
GND |
Ground |
11 |
NIND1 |
Negative LVDS Differential Data Inputs |
12 |
PIND1 |
Positive LVDS Differential Data Inputs |
13 |
GND |
Ground |
14 |
NIND2 |
Negative LVDS Differential Data Inputs |
15 |
PIND2 |
Positive LVDS Differential Data Inputs |
16 |
GND |
Ground |
17 |
NINC |
Negative LVDS Differential Clock Inputs |
18 |
PINC |
Positive LVDS Differential Clock Inputs |
19 |
GND |
Ground |
20 |
NIND3 |
Negative LVDS Differential Data Inputs |
21 |
PIND3 |
Positive LVDS Differential Data Inputs |
22 |
GND |
Ground |
23~24 |
NC |
No connection |
25 |
GND |
Ground |
26~27 |
NC |
No connection |
28 |
SELB |
6bit/8bit mode select |
29 |
AVDD |
Power for Analog Circuit |
30 |
GND |
Ground |
31~32 |
LED- |
LED Cathode |
33 |
SHLR |
Horizontal Inversion |
34 |
UPDN |
Vertical Inversion |
35 |
VGL |
Negative Power for TFT |
36~37 |
NC |
No connection |
38 |
VGH |
Positive Power for TFT |
39~40 |
LED+ |
LED Anode |
Absolute maximum rating (GND=AGND=0V)
Parameter |
Symbol |
Spec. |
Unit |
||
Min. |
Typ. |
Max. |
|||
Power supply voltage 1 |
VDD |
-0.5 |
- |
3.96 |
V |
Power supply voltage 2 |
AVDD |
-0.5 |
- |
14.85 |
V |
Logic output voltage |
VOUT |
-0.5 |
- |
5 |
V |
Input voltage |
VIN |
-0.5 |
- |
AVDD+0.5 |
V |
Operation temperature |
TOPR |
-20 |
- |
85 |
℃ |
Storage temperature |
TSTG |
-55 |
- |
125 |
℃ |
Electrical characteristics (VSS=0V ,Ta=25℃)
Item |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Digital Supply Voltage |
VDD |
3 |
3.3 |
3.6 |
V |
Analog Supply Voltage |
AVDD |
8.9 |
9 |
9.1 |
V |
TFT Gate ON Voltage |
VGH |
17 |
18 |
19 |
V |
TFT Gate OFF Voltage |
VGL |
-6.5 |
-6 |
-5.5 |
V |
TFT Common Electrode Voltage |
VCOM |
3 |
3.15 |
3.3 |
V |
LED backlight specification (VSS=0V ,Ta=25℃)
Item |
Symbol |
Condition |
Min. |
Typ. |
Max. |
Unit |
Note |
Supply voltage |
- |
- |
9 |
9.6 |
10.8 |
V |
1 |
Supply current |
If |
- |
- |
220 |
- |
mA |
2 |
LED Life Time |
Hr |
- |
- |
50000 |
- |
Hr |
|
Note:
1: VLED=VLED(+)-VLED(-).
2: The current of LED is 20mA.
A LED drive in constant current mode is recommended.