LMT DISPLAY / ENGINEERING GUIDES
TFT LCD Wiring Guide: FPC Pinout and First Power-On
Map the connector from the exact module drawing before powering the display. Start with ground, module and I/O supplies, then add data and control signals. Verify the LED backlight circuit separately; do not power the LEDs from a GPIO or assume the same rail as logic.
LMT10004C10: 10-pin, 4-wire SPI
Source: LMT10004C10 v1.0, p. 11 (pin table). Use p. 10 to orient the physical connector. The SDA/SCL labels here identify SPI data and clock, not I²C. Check host output levels against the module’s I/O requirements before wiring.
| Pin | Label | Connection or check |
|---|---|---|
| 1 | GND | Module ground |
| 2 | VCC | 2.8–3.2 V supply per pin table |
| 3 | IOVCC | 1.8–2.8 V I/O supply per pin table |
| 4 | LEDA | Backlight anode; use the specified LED drive |
| 5 | LEDK | Backlight cathode |
| 6 | RESET | Host reset output at a compatible logic level |
| 7 | RS | Command/data select |
| 8 | SDA | SPI serial data, bidirectional per source; not an I²C bus label |
| 9 | SCL | SPI serial clock |
| 10 | CS | Chip select |
LMT13067C14: 14-pin, 4-wire SPI
Source: LMT13067C14, p. 11 (pin table). The 14-pin layout is specific to LMT13067C14; touch labels alone do not confirm a supplied touch panel.
| Pin | Label | Connection or check |
|---|---|---|
| 1 | LEDA | Backlight anode |
| 2 | GND | Ground / backlight cathode |
| 3 | IOVCC | 1.8–3.2 V I/O supply per pin table |
| 4 | VCC | 2.8–3.2 V supply per pin table |
| 5 | SDA | SPI serial data input |
| 6 | DC | Command/data select |
| 7 | SCL | SPI serial clock |
| 8 | CS | Chip select |
| 9 | RESET | Reset input |
| 10–13 | TP-RST / TP-SCL / TP-SDA / TP-INT | Touch-labelled positions; confirm the supplied assembly before using |
| 14 | GND | Ground / backlight cathode |
First power-on checklist
- With power off, confirm connector orientation, continuity and ground; check for shorts between supply rails.
- Verify rail voltages, I/O thresholds and power sequence against the approved drawing, then test with current limiting appropriate to the design.
- Apply the model-specific reset and initialization sequence. On a blank screen, check LED power and command/data activity separately.
- Display solid red, green and blue, then check orientation, pixel format and offsets. Use a logic analyzer on the relevant interface to verify timing before raising update rate.
For MCU, RGB and MIPI panels, use the exact model’s pin table and host interface. These two SPI maps are not generic wiring diagrams.
Need to check a specific display?
Send the model number, host interface and drawing revision for a configuration review.