DESCRIPTION
HC-230HJ4001 is a 2.31 inch tft lcd display screen with optional resistive touch screen and capacitive touch screen control with a resolution of 320×240 pixels. This size TFT LCD display is portrait mode with wider viewing angle by POL adjustment, left: 70/right: 70/up: 70/down: 60 degrees (typical).Optional RTP or CTP.
This HC-230HJ4001 module has built-in ILI9342C controller IC, supports RGB interface, power supply voltage (VCC) range is 3.0V to 3.6V, brightness is 380 nits (typ), and contrast ratio is 800:1. This module is instrumentation , communication equipment and other industrial ideal choice. The module can operate at temperatures from -20°C to +70°C; its storage temperature range is -30°C to +80°C.
DRAWING
SPECIFICATIONS
General Specifications
| Item | Contents | Unit |
| Size | 2.31 | inch |
| LCM Dimension | 55（W）* 47.55（H） * 2.75(T) | mm |
| LCD Active Area | 46.75* 35.06 | mm |
| Number Of Dots | 320×240 | pixel |
| LCD Type | a-Si TFT | |
| Viewing Direction | 6 o’clock | |
| Driver IC | ILI9342C | |
| Interface Type | RGB | |
| Operating Temperature | -20℃~ 70℃ | |
| Storage Temperature | -30℃~ 80℃ | |
| Backlight Type | 2 LEDs | |
| Brightness | 380 | cd/m2 |
Interface
LCM PIN Definition
| NO. | Symbol | Description |
| 1 | NC | NC |
| 2 | NC | NC |
| 3 | VGL | Capacitor for po wer setting |
| 4 | C4P | Capacitor for charge pump |
| 5 | C4M | Capacitor for charge pump |
| 6 | VGA | Capacitor for po wer setting |
| 7 | NC | NC |
| 8 | VCAC | Capacitor for po wer setting |
| 9 | VINT3 | Capacitor for po wer setting |
| 10 | C3P | Capacitor for charge pump |
| 11 | C3N | Capacitor for charge pump |
| 12 | VINT2 | Capacitor for po wer setting |
| 13 | C2P | Capacitor for charge pump |
| 14 | C2M | Capacitor for charge pump |
| 15 | NC | NC |
| 16 | C1P | Power transistor gate signal for the boost converter |
| 17 | C1M | Main boost regulator feedback input. |
| 18 | PGND | Ground |
| 19 | PVDD | POWER SUPPLY |
| 20 | NC | NC |
| 21 | LEDA | BACKLIGHT ANODE |
| 22 | NC | NC |
| 23 | LEDK | BACKLIGHT CATHODE |
| 24 | NC | NC |
| 25 | GND | Ground |
| 26 | VCC | POWER SUPPLY |
| 27 | CS | Chip Select |
| 28 | SDA | Serial Data Input |
| 29 | SCL | Serial Clock |
| 30 | HS | Line Synchronizing Signal |
| 31 | VS | Frame Synchronizing Signal |
| 32 | DCLK | Dot Clock Signa |
| 33-38 | D5-D0 | Data Bus |
| 39-40 | NC | NC |
DC Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
| TFT gate on voltage | VGH | — | 15 | — | V |
| TFT gate off voltage | VGL | — | -7.5 | — | V |
| TFT common electrode Voltage | Vcom | — | -1 | — | V |
Typical Operation Conditions
| Item | Symbol | Min. | Typ. | Max. | Unit |
| Analog Supply Voltage | VCI | 2.5 | 2.8 | 3.3 | V |
| Digital Supply Voltage | VDD | 2.5 | 2.8 | 3.3 | V |
| I/O Supply Voltage | IOVCC | 1.65 | 1.8/2.8 | 3.3 | V |
| Input High Voltage | VIH | 0.8*IOVCC | – | IOVCC | V |
| Input Low Voltage | VIL | 0 | – | 0.2*IOVCC | V |
| Output High Voltage | VOH | 0.8*IOVCC | – | – | V |
| Output Low Voltage | VOL | – | – | 0.2*IOVCC | V |
Backlight Circuit Characteristics
| Item | Symbol | Min. | Typ. | Max. | Unit |
| LED Current | IB | — | 30 | 40 | mA |
| LED Voltage | Vf | 2.8 | 3.0 | 3.2 | V |
| CIE | X | 0.265 | 0.295 | 0.325 | |
| Y | 0.26 | 0.29 | 0.32 | ||
| Brightness of LCM | L | — | 380 | — | cd/m2 |
Reliability Test Items
| Test Item | Test Condition | Test result determinant gist |
| High temperature storage | 80±3 ℃，48H； | |
| Low temperature storage | ~30±3 ℃，48H； | |
| High temperature storage | 70±3 ℃，48H； | Inspection after 2~4hours storage at roomtemperature, |
| Low temperature operation | ~20±3 ℃，48H； | the sample shall be free from defects: |
| High temperaturehumi/dity | 60℃±3 ℃,90%±3%RH ，48H； | 1.Air bubble in the LCD; |
| Thermal Shock | ~20℃/0.5h~+70℃/0.5h for a total 24 cycles； | 2.Non-display; |
|
Vibration Test | Frequency 10Hz~55Hz~10Hz | 3.Glass crack; |
| Amplitude：1.5mm, X，Y，Z | ||
| direction for total 1H； | 4. The electrical | |
| (Packing condition) | ||
| ESD test | ±4KV, Human Body Mode, | characteristics requirements shall be satisfied. |
| 150pF/330Ω； | ||
| ±8KV, Air Mode, 150pF/330Ω； |
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