Model No. WH1202A
►LCD de Caractere 12x2
►5x8 pontos inclui cursor
►Controlador (ST7066 ou equivalente) integrado
►Alimentação +5V ( também disponível para +3V)
►Tensão negativa opcional para fonte de alimentação +3V
►1/16 duty cycle
►Interface : 6800, opção SPI/I2C (RW1063 IC)
DESCRIPTION
►WH1202A : 6800 interface (ST7066 IC)
►WH1202A1: SPI interface (RW1063 IC)
►WH1202A2: I2C interface (RW1063 IC)
►WH1202A1: SPI interface (RW1063 IC)
►WH1202A2: I2C interface (RW1063 IC)
DRAWING
SPECIFICATIONS
Interface Pin Function
| Pin No. | Symbol | Description |
|---|---|---|
| 1 | VSS | Ground |
| 2 | VDD | Power supply for logic |
| 3 | VO | Operating voltage for LCD |
| 4 | RS | H: DATA, L: Instruction code |
| 5 | R/W | H: Read L: Write |
| 6 | E | Chip enable signal |
| 7~14 | DB0~DB7 | Data bus line |
| 15 | A | Power supply for B/L + |
Mechanical Data
| Item | Standard Value | Unit |
|---|---|---|
| Module Dimension | 55.7 × 32.0 | mm |
| Viewing Area | 46.0 × 14.5 | mm |
| Mounting Hole | 31.2 × 30.0 | mm |
| Character Size | 2.65 × 5.50 | mm |
Electrical Characteristics
| Item | Symbol | Standard Value typ. |
Unit |
|---|---|---|---|
| Input Voltage | VDD | 3/5 | V |
| Recommended LCD Driving Voltage for Normal Temp. Version module @25°C |
VDD-VO | 4.20 | V |
Display Character Address Code
| Display Position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| DD RAM Address | 00 | 01 | 0A | 0B | ||||
| DD RAM Address | 40 | 41 | 4A | 4B |
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