ILI9881C TFT LCD controller pinout · Winstar WF70D4SYAUMNN0 · 40-contact FPC

Winstar WF70D4SYAUMNN0 · 40-contact FPC pinout

Winstar WF70D4SYAUMNN0 · 40-contact FPC

Match contact 1 to the module outline drawing. The flex contact pitch is 0.5 mm.

Selected pin details

19 · IOVCC

Supply input · Power

I/O supply, nominal 1.8 V.

Winstar WF70D4SYAUMNN0, Interface Pin Function and Typical Operation Conditions.

Electrical limits · Link to this pin

All 40 pins

Pin	Signal	Direction	Function
1	NC (TP_GND) None	None	Unconnected on this module.
2	NC (TP_SDA) None	None	Unconnected on this module.
3	NC (TP_SCL) None	None	Unconnected on this module.
4	NC (TP_INT) None	None	Unconnected on this module.
5	NC (TP_RST) None	None	Unconnected on this module.
6	NC (YU) None	None	Unconnected on this module.
7	NC (XL) None	None	Unconnected on this module.
8	NC (YD) None	None	Unconnected on this module.
9	NC (XR) None	None	Unconnected on this module.
10	VCI Supply input	Supply input	Analog supply, nominal 3.3 V.
11	VCI Supply input	Supply input	Second analog supply contact.
12	NC None	None	Reserved contact. Leave open.
13	NC None	None	Reserved contact. Leave open.
14	RESET Input	Input	Global reset referenced to the I/O supply.
15	TE Output	Output	Tearing-effect output. Leave open when unused.
16	NC None	None	Reserved contact. Leave open.
17	GND Supply return	Supply return	Connect to host ground.
18	GND Supply return	Supply return	Connect to host ground.
19	IOVCC Supply input	Supply input	I/O supply, nominal 1.8 V.
20	IOVCC Supply input	Supply input	Second I/O supply contact.
21	GND Supply return	Supply return	Connect to host ground.
22	NC None	None	Reserved contact. Leave open.
23	NC None	None	Reserved contact. Leave open.
24	GND Supply return	Supply return	Connect to host ground.
25	NC None	None	Reserved contact. Leave open.
26	NC None	None	Reserved contact. Leave open.
27	GND Supply return	Supply return	Connect to host ground.
28	CLKP Input	Input	Positive DSI clock contact.
29	CLKN Input	Input	Negative DSI clock contact.
30	GND Supply return	Supply return	Connect to host ground.
31	D1P Input	Input	Positive DSI data lane 1 contact.
32	D1N Input	Input	Negative DSI data lane 1 contact.
33	GND Supply return	Supply return	Connect to host ground.
34	D0P Input	Input	Positive DSI data lane 0 contact.
35	D0N Input	Input	Negative DSI data lane 0 contact.
36	GND Supply return	Supply return	Connect to host ground.
37	GND Supply return	Supply return	Connect to host ground.
38	VLED+ Supply input	Supply input	Backlight LED anode. Use a separate current-regulated LED driver.
39	VLED- Backlight return	Backlight return	LED string cathode. Connect to the LED driver return.
40	VLED- Backlight return	Backlight return	Second LED cathode contact. Connect to the LED driver return.

Signal assignments

MIPI DSI

Use a DSI host and correctly routed differential pairs. Match lane numbers and polarity at both ends.

Panel and backlight supplies

Panel analog power and I/O power use separate rails. The backlight requires its own current-regulated driver.

Electrical limits

Parameter	Limit	Conditions and source
VCI2.5–3.6 V, 3.3 V typical	2.5–3.6 V, 3.3 V typical	Analog supply. Winstar WF70D4SYAUMNN0, Interface Pin Function and Typical Operation Conditions.
IOVCC1.7–1.9 V, 1.8 V typical	1.7–1.9 V, 1.8 V typical	Digital I/O supply. Winstar WF70D4SYAUMNN0, Interface Pin Function and Typical Operation Conditions.
Backlight140 mA typical, 16.8–19.2 V forward voltage	140 mA typical, 16.8–19.2 V forward voltage	Use a regulated LED driver with suitable compliance. Winstar WF70D4SYAUMNN0, Interface Pin Function and Typical Operation Conditions.
Panel and host interface800 × 1280, 2-lane MIPI DSI	800 × 1280, 2-lane MIPI DSI	Use the panel-specific timings and initialization. Winstar WF70D4SYAUMNN0, Interface Pin Function and Typical Operation Conditions.

Models and documents

This map covers the 40-contact FPC of the Winstar WF70D4SYAUMNN0 without touch. Other ILI9881C modules have their own lane count, wiring and initialization.

Winstar WF70D4SYAUMNN0: 40-contact FPC, two DSI lanes and no touch panel.

Winstar WF70D4SYAUMNN0 manufacturer documentation· Winstar WF70D4SYAUMNN0, Interface Pin Function and Typical Operation Conditions.
ILI9881C controller datasheet· ILI Technology ILI9881C datasheet, MIPI DSI interface and power pins.