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ITBD02-2.2SP is a 2.2" TFT LCD module with serial interface. Instead of using the 8/16bit parallel bus, you just need 4 pins (CS,RS,SCL,SDA) to control this LCD module. The TFT LCD is 2.2" with resolution 176x220, 262K color.
There is LDO and Level converter chip on board, so the ITDB02-2.1SP support both 5V or 3.3V operation level. For power supply, you can use the 3.3V power via "3.3V" PIN, so 5-9V power via "VIN" PIN.
*This ITDB02-2.2SP module just support the display function, without touch and SD expand.
Datasheet of HX8340 (controller)
Datahseet of ITBD02-2.2SP
Display Test DEMO (Arduino)
Character DEMO (8051 C)
Picture dispaly DEMO (8051 C)