HX8357C TFT LCD controller connection guide
HX8357C TFT LCD controller TM035PDH03 · FPC-45 wiring guide with power, signal assignments, and bench checks.
TM035PDH03 · FPC-45
45 contacts Current packageConnect TM035PDH03 in 4-wire serial mode
RequiredSet IM2:IM0 to 111 before reset. Connect the 3.3 V host and panel supplies to the same regulated rail and ground the unused parallel and RGB inputs.
- +3.3 V
- Ground
- Chip select
- /CS (37)
- Host CS
- Reset
- /RESET (33)
- Host reset
- Clock
- /WR/SCL (35)
- Host SCK
- Serial host data
- SDI (13)
- Host MOSI
- Serial return
- SDO (14)
- Host MISO input
- Command / data
- RS (36)
- Host D/C
- Backlight anode
- LEDA (44)
- Backlight supply output
- Backlight branch 1
- LEDK1 (43)
- Constant-current sink 1 · 20 mA typical
- Backlight branch 2
- LEDK2 (42)
- Constant-current sink 2 · 20 mA typical
- Backlight branch 3
- LEDK3 (41)
- Constant-current sink 3 · 20 mA typical
- Backlight branch 4
- LEDK4 (40)
- Constant-current sink 4 · 20 mA typical
- Backlight branch 5
- LEDK5 (39)
- Constant-current sink 5 · 20 mA typical
- Backlight branch 6
- LEDK6 (38)
- Constant-current sink 6 · 20 mA typical
Bench checks
- Check the flex orientation, both panel supply voltages, and independent backlight current before sending commands.
- Observe the active-low reset and compare the first SPI transaction with the module timing diagram. Use the Tianma panel initialization and verify a full-width color test.
Tianma TM035PDH03 V1.0, §§ 2, 4 and 5. Manufacturer PDF hosted by Datasheet4U. The Tianma document describes HX8357C operation as integrated in this module.
TM035PDH03 · FPC-45 wiring map
TM035PDH03 · FPC-45
7 · HSYNC
RGB line sync. Ground when unused.
Models and documents
This map applies to the Tianma TM035PDH03 and its 0.3 mm pitch FPC. The module datasheet specifies the controller interface timing and strap settings.
- TM035PDH03
- Tianma 3.5-inch TFT module.
- Tianma TM035PDH03 manufacturer documentation· Tianma TM035PDH03 V1.0, §§ 2, 4 and 5. Manufacturer PDF hosted by Datasheet4U.
