Hotdisplay Technology Co.Ltd
LCD Display Module Manufacturer & Supplier SINCE 2004
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128X64 Graphic LCD Module | STN | Display With White Backlight | HTM12864-27
Product parameters
Product Application -
Viewing Angle - 6H
Backlight Brightness - White
Connection method PIN number - 20PIN
Interface method - SPI
Working temperature - -20~70℃
Supply voltage - 5.0v
Mechanical Data
| Item | Standard Value | Unit |
|---|---|---|
| Module Dimension | 93.0x70.0x13.5 | mm |
| Viewing Area | 65.5x38.0 | mm |
| Mounting Hole | 60.775x32.935 | mm |
| Dot Pitch | 0.475x0.515 | mm |
| Dot Size | 0.49x0.45 | mm |
| Item | Symbol | Standard Value typ. | Unit |
|---|---|---|---|
| Input Voltage | VDD | 5.0 | V |
Interface Pin Function
| Pin No. | Pin Name | Function |
| 1 | VSS | Negative power supply,0V |
| 2 | VDD | Power supply voltage (Positive) |
| 3 | NC | NC |
| 4 | A0 | This is connect to the least significant bit of the normal MPU address bus, and it determines whether the data bits are data or command. |
| 5~6 | NC | NC |
| 7 | SCLK | The serial clock input (SCLK). |
| 8 | SID | Serial data input(SID) |
| 9 | RES | When /RES is set to “L”, the register settings are initialized (cleared). The reset operation is performed by the /RES signal level |
| 10~14 | NC | NC |
| 15 | /CS | This is the chip select signal |
| 16~18 | NC | NC |
| 19 | BLK | Backlight Negative(VSS) |
| 20 | BLA | Backlight Positive(VDD) |
Absolute Maximum Ratings
| Items | Symbol | MIN. | MAX. | Unit | Condition |
| Supply Voltage | VDD | -0.3 | +5.5 | V | VSS = 0V |
| Input Voltage | VIN | -0.3 | VDD+0.3 | V | VSS = 0V |
| Operating | TOP | -10 | +60 | ℃ | No Condensation |
| Storage Temperature | Tst | -20 | +70 | ℃ | No Condensation |
Electrical Characteristics
| Items | Symbol | MIN. | TYP. | MAX. | Unit | Condition |
| Operating Voltage | VDD | 4.5 | 5.0 | 5.5 | V | VDD |
| Input High Voltage | VIH | 0.8 x VDD | - | VDD | V | /CS,/RES,A0,SCLK, SID |
| Input Low Voltage | VIL | VSS | - | 0.2 x VDD | V | |
| Output High Voltage | VOH | 0.8 x VDD | - | VDD | V |
SCLK, SID |
| Output Low Voltage | VOL | VSS | - | 0.2 x VDD | V | |
| Operation Current (Without LED) | Iop | 100 | 200 |
μA | VDD=5.0V | |
| Input Leakage Current | ILI | -1.0 | - | 1.0 | μA | VDD |
| Output Leakage Current | ILo | -3.0 | - | 3.0 | μA | VDD |
| Items | Symbol | MIN. | TYP. | MAX. | Unit | Condition |
| Forword Voltage | Vf BLA | - | 5.0 | - | V | - |
| Forword Current | If BLA | - | 10 | 15 | mA | - |
