Character LCD 20x4 I2C / SPI / 6800 Display
Model No. WH2004H
►Character LCD 20x4 Display
►5x8 dots includes cursor
►Bulit-in controller (RW1063 or Equivalent)
►+5V power supply ( Also available for +3V)
►Negative voltage optional for +3V power supply
►1/16 duty cycle
►LED can be driven by PIN1, PIN2, PIN15, PIN16 or A and K
►Interface : WH2004H - 6800, WH2004H1 - SPI, WH2004H2 - I2C
DESCRIPTION
The Character LCD 20x4 Display of WH2004H has the same outline, VA and AA size as WH2004G, but WH2004H having with FFC pinned out.
Below are the available model numbers with different interface--
- WH2004H - 6800 interface
- WH2004H1 - 4 line SPI interface
- WH2004H2 - I2C interface (lcd 20x4 I2C)
DRAWING
SPECIFICATIONS
Interface Pin Function
| Pin No. | Symbol | Description |
|---|---|---|
| 1 | VSS | Ground |
| 2 | VDD | Power supply for logic |
| 3 | VO | Contrast Adjustment |
| 4 | RS | Data/ Instruction select signal |
| 5 | R/W | Read/Write select signal |
| 6 | E | Enable signal |
| 7~14 | DB0~DB7 | Data bus line |
| 15 | A | Power supply for B/L + |
| 16 | K | Power supply for B/L - |
Mechanical Data
| Item | Standard Value | Unit |
|---|---|---|
| Module Dimension | 87.0 × 58.0 | mm |
| Viewing Area | 74.4 ×24.8 | mm |
| Mounting Hole | 82.0 × 53.0 | mm |
| Character Size | 2.95 × 4.75 | mm |
Electrical Characteristics
| Item | Symbol | Standard Value typ. |
Unit |
|---|---|---|---|
| Input Voltage | VDD | 3/5 | V |
| Recmmended 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 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DD RAM Address | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 0A | 0B | 0C | 0D | 0E | 0F | 10 | 11 | 12 | 13 |
| DD RAM Address | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 4A | 4B | 4C | 4D | 4E | 4F | 50 | 51 | 52 | 53 |
| DD RAM Address | 14 | 15 | 16 | 17 | 18 | 19 | 1A | 1B | 1C | 1D | 1E | 1F | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| DD RAM Address | 54 | 55 | 56 | 57 | 58 | 59 | 5A | 5B | 5C | 5D | 5E | 5F | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 |
Search Keyword: 20x4 lcd, 20 x 4 lcd, lcd 20x4, lcd 20 x 4
