LCD Type | 1.54"/a-Si TFT/RGB-stripe/ADS | ||
Viewing Direction | all | ||
Number of Dots | 240RGB(H)×240(V) | ||
LCM Outline(H*V*T) | 31.52×33.72×1.88 | ||
Active Area(H*V) | 27.72×27.72 | ||
Operating Temperature | -20~+70℃ | ||
Power Supply Voltage | VCC=2.8V | ||
BL Power Consumption | 180mW(3p) | ||
Panel Power Consumption | 13mW | ||
LCD Controller | ST7789P3 | ||
LCD interface | 4-line serial/ 8bit parallel | ||
LCM Brightness | 450cd/m2 | ||
Contrast Ratio | 1200 |
Pin No. |
Symbol |
I/O |
Description |
|
1 |
LED_A |
P |
Backlight anode |
|
2 |
LED_K |
P |
Backlight cathode |
|
3 |
VCC |
P |
2.85V Power supply |
|
4 |
GND |
P |
Power ground |
|
5 |
8B_4W |
I |
Select the MCU interface mode: When 8b_4w='0', 8080 MCU 8-bit interface is selected. When 8b_4w ='1', 4-wire 8-bit data serial interface is selected. |
|
6 |
/RESET |
I |
Reset pin. Initializes the LCM when low. |
|
7 |
/CS |
I |
Chip select input pin( "Low" enable). This pin can be permanently fixed "Low" in MPU interface mode only |
|
8 |
/ RS_SCL |
I |
This pin is used to select "Data or Command" in the parallel interface: When DCX='1', data is selected. When DCX='0', command is selected. This pin is used to be serial interface clock in 4-wire 8-bit serial data interface. |
|
9 |
/WR_RS |
I |
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. |
|
10 |
/RD |
I |
8080 system (RD): Serves as a read signal and MCU read data at the rising edge. Fix to IOVCC level when not in using. |
|
11 |
SDA |
I/O |
Serial input/ouput signal in 4-wire 8-bit serial data interface. The data is applied on rising edge of the SCL signal. If not used, fix this pin at VCC or GND |
|
12~19 |
DB0~DB7 |
I |
8-bit parallel bi-directional data bus for MCU system. |
|
20 |
TE |
O |
Tearing effect output. If not used, please open this pin. |