Description
2.1-inch Circular TFT LCD Module – A Radiant Display
Behold the ShenZhen Techstar Electronics Incorporated Co., Ltd  SF-TC210B-8947A-N, a circular TFT LCD module boasting a 2.1-inch diagonal size and a pixel-packed resolution of 480×480. Powered by the ST7701S IC, this module seamlessly integrates controller and driver functions. It extends support to 18bits RGB and a 3-line SPI interface, with a versatile supply voltage (Vdd) range spanning from 2.5V to 4.8V, favoring a typical value of 2.8V.
The SF-TC210B-8947A-N TFT LCD module operates in a circular mode, casting brilliance with a luminosity of 300 nits (typical value). For added versatility, it offers optional configurations for a Resistive Touch Screen and a Projected Capacitive Touch Screen. Temperature resilience is its forte, with operational capabilities ranging from -20℃ to +70℃, and storage endurance spanning from -30℃ to +80℃. This 2.1-inch TFT LCD module finds its applications across an array of devices, from coffee machines and microwaves to scanners and home automation systems, offering a visual feast in realms such as access control, monitoring, analyzers, security, and garden irrigation.
Product Features:
| Product: | 2.1″ Inch Circular IPS TFT LCD |
| Interface: | 3 Line SPI + 18 Bits RGB |
| Viewing Direction: | IPS (80/80/80/80) |
| Pin Number: | 40 Pins |
| Active Area: | 53.28 mm Diameter |
| Surface Luminance: | 300 Cd/m2 (nits) |
| LED Lifetime: | 40,000 Hours |
| Resolution: | 480×480 Dots |
| Touch Screen: | Can Be Customized |
| Driver IC: | ST7701S |
| Module Size: | 56.18 X 59.71 X 2.3 mm |
| Connection: | Plugging (Can Be Customized ) |
| Operating Temp.: | -20℃ To +70℃ |
| Compliance: | REACH & RoHS Compliant |
2.1 inch Round TFT LCD, Circular TFT LCD 2.1″ Product Drawing
Pin Assignment
| 1 | LEDÂ A | LEDÂ ANODE |
| 2 | LEDÂ K | LEDÂ CATHODE |
| 3 | LEDÂ K | LEDÂ 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 |
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 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 | — | |||
| LEDÂ number | / | 4 | pcs | |||
2.1 inch Round TFT LCD, Circular TFT LCD 2.1″ Real Product ImageÂ
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