VK202-25 Matrix Orbital, VK202-25 Datasheet - Page 21

• Manufacturer Part Number: VK202-25
• Description: VFD ALPHA/NUM DISPL 20X2 SER/I2C
• Manufacturer: Matrix Orbital
• Series: VK202-25r

Specifications of VK202-25

• Outline L X W X H: 116.00mm x 37.00mm x 29.48mm
• Viewing Area: 89.75mm L x 11.50mm W
• Display Format: 20 x 2
• Display Type: Character
• Format: 5 x 7 Dots
• Character Size: 4.70mm H x 2.40mm W
• Interface: Serial
• Operating Temperature: -20°C ~ 70°C
• Product: Character Display Modules
• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 29.48 mm
• Operating Temperature Range: - 20 C to + 70 C
• Dot Format: 5 x 7
• Viewing Area (w X H): 89.75 mm x 11.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Number Of Dots: -
• Lead Free Status / Rohs Status: Details
• Other names: 635-1020

Custom characters occupy a 5 x 8 pixel matrix. Built-in characters are 5 x 7: the bottom row of pixels is
normally reserved for the underline cursor. The underline cursor should be turned off if the bottom row of
pixels forms part of a custom character.
The characters are defined by issuing the command 254 78 [c] followed by 8 bytes to define the character.
[c] is the character number (0x00 to 0x07). The 8 bytes are mapped as shown below:
A "1" bit indicates an on (black) pixel, a "0" bit indicates an off (clear) pixel.
Once defined, a character is displayed simply by issuing a value (0x00 to 0x07) corresponding to the
character number. The character will be laid out as follows:
Note: Custom characters will be erased if any of the "initialize bar graph" commands are issued.
VK202-25 rev. 05
MSB
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
11 12 13
16 17 18
21 22 23
26 27 28
31 32 33
36 37 38
1
6
11
16
21
26
31
36
1
6
2
7
12
17
22
27
32
37
2
7
3
8
Cursor Line
14
19
24
29
34
39
13
18
23
28
33
38
21
4
9
3
8
LSB
10
15
20
25
30
35
40
5
14
19
24
29
34
39
4
9
Data Byte 1
Data Byte 2
Data Byte 3
Data Byte 4
Data Byte 5
Data Byte 6
Data Byte 7
Data Byte 8
10
15
20
25
30
35
40
5