Description
Techstar’s SF-TC210B-8947A-N is a diagonal size 2.1-inch circular TFT LCD module with resolution 480×480 pixels. This module is built in with ST7701S IC; it includes the controller and driver IC functions, supports 18bits RGB and 3-line SPI interface, and supply voltage (Vdd) range from 2.5V to 4.8V, typical 2.8V.
Key Features:
-
- 480×480 resolution
- ST7701S IC
- 18-bit RGB, 3-line SPI interface
- 2.5V – 4.8V power supply (2.8V typical)
- 300 nits brightness
- -20°C to +70°C operating temperature
- Optional resistive or capacitive touchscreen
Production Information:
| Product: | 2.1″ Inch Circular IPS TFT LCD |
|---|---|
| Touch Screen: | Can Be Customized |
| Resolution: | 480×480 Dots |
| Viewing Direction: | IPS (80/80/80/80) |
| Driver IC: | ST7701S |
| Pin Number: | 40 Pins |
| Module Size: | 56.18 X 59.71 X 2.3 mm |
| Active Area: | 53.28 mm Diameter |
| Operating Temp.: | -20℃ To +70℃ |
| Compliance: | REACH & RoHS Compliant |
| Connection: | Plugging |
| Surface Luminance: | 300 Cd/m2 (nits) |
| Interface: | 3 Line SPI + 18 Bits RGB |
| LED Lifetime: | 40,000 Hours |
2.1 inch Round TFT LCD, Circular TFT LCD Display 2.1″ Product Drawing
Pin Assignment
| 1 | LED A | LED ANODE |
| 2 | LED K | LED CATHODE |
| 3 | LED K | LED CATHODE |
| 4 | GND | Ground |
| 5 | VCI | Power supply |
| 6 | RESET | Reset Signal, Active Low |
| 7 | NC | NC |
| 8 | NC | NC |
| 9 | SDA | SPI Data signal |
| 10 | SCK | SPI Cloc signal |
| 11 | CS | SPI Chip select signal |
| 12 | PCLK | RGB dot, clock signal |
| 13 | DE | RGB data, enable signal |
| 14 | VSYNC | RGB frame, synchronizing signal |
| 15 | HSYNC | RGB line, synchronizing signal |
| 16~33 | DB0~DB17 | RGB data signal |
| 34 | GND | Ground |
| 35 | TP_INT | Touch Interrupt |
| 36 | TP_SDA | Touch IIC Data signal |
| 37 | TP_SCL | Touch IIC Clock signal |
| 38 | TP_RESET | Touch Reset Signal |
| 39 | TP_VCI | Touch Power supply |
| 40 | GND | Ground |
Absolute Maximum Ratings
| Item | Symbol | Value | Unit |
| Power supply voltage for logic | VDD | 0.3~4.8 | V |
| Input voltage | Vin | VDD+0.3 | V |
| Operating temperature | Topr | -20 to 70 | 。C |
| Storage temperature | Tstg | -30 to 80 | 。C |
Electrical Characteristics for TFT LCD Panel
| Item | Symbol | Min | Type | Max | Unit | Test Condition |
| Operating voltage | VDD | 2.5 | 2.8 | 4.8 | V | – |
| Supply current | IDD | – | – | 50 | mA | VDD=2.8V, Ta=25C |
| Input voltage | VIH | 0.8VDD | – | VDD | V |
– |
| VIL | 0 | – | 0.2VDD | V | ||
| Input leakage current | IIL | -1.0 | – | 1.0 | μA | VIN=VDD or VSS |
Electrical Characteristics for Backlight
| Item | Symbol | Min | Typ | Max | Unit | Remark |
| Forward Current | IF | — | 20 | 22 | mA | |
| Forward Voltage | VF | – | 12.8 | – | V | |
| Connection mode | — | 4Series | — | |||
| LED number | / | 4 | pcs | |||
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