Home Products Character LCD WH2004H

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

Caracter LCD 20x4 Display, LCD 20x4, LCD 20x4 I2C - WH2004H

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

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