Spark Logic

ILI9225 TFT LCD controller connection guide

ILI9225 TFT LCD controller MAR2201 · 11-contact header wiring guide with power, signal assignments, and bench checks.

MAR2201 · 11-contact header

11 contacts Current package

ILI Technology ·

Bring up the display over SPI

Required

Use a 3.3 V logic host and a regulated module supply at 3.3 V. Wire both GND contacts. Use the vendor’s MAR2201 initialization to exercise the LCD without an SD card.

Bench checks

  • Confirm supply and ground at the module before starting the panel. Observe reset, chip select and clock with a logic analyzer if the panel stays blank.
  • Display solid colors and draw the corner pixels at the address-window boundaries. Check the selected MAR2201 orientation if the picture is offset.

LCDWiki MAR2201 interface definition and 2.2-inch SPI board schematic. ILI Technology ILI9225 controller datasheet, interface and display RAM sections. Manufacturer PDF hosted by Display Future.

MAR2201 · 11-contact header wiring map

Highlighted contacts are used in the required step or selected circuit. Select a contact to inspect it.

MAR2201 · 11-contact header
Follow the numbered contact or silkscreen on the exact module. The display and solder sides mirror each other.
Selected pin details

5 · NC

None · NC / reserved

Reserved contact. Leave open.

LCDWiki MAR2201 interface definition and 2.2-inch SPI board schematic.

Electrical limits · Pin in the reference

Models and documents

The pin map covers the 2.2-inch MAR2201 module header. The linked Ilitek datasheet describes the controller die and its alternative interfaces.

MAR2201
2.2-inch module with a separate backlight enable input.