M0220SD-202SDAR1 Newhaven Display, M0220SD-202SDAR1 Datasheet - Page 13

• Manufacturer Part Number: M0220SD-202SDAR1
• Description: MODULE VF CHAR 2X20 5.34MM
• Manufacturer: Newhaven Display

Specifications of M0220SD-202SDAR1

• Outline L X W X H: 116.00mm x 37.00mm x 17.50mm
• Viewing Area: 70.80mm L x 11.50mm W
• Display Format: 20 x 2
• Display Type: Character
• Format: 5 x 8 Dots
• Voltage - Supply: 5V
• Character Size: 5.34mm H x 2.35mm W
• Operating Temperature: -40°C ~ 85°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 17.5 mm
• Voltage Rating: 5 V
• Operating Temperature Range: - 40 C to + 85 C
• Dot Format: 5 x 8
• Viewing Area (w X H): 70.8 mm x 11.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Number Of Dots: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4. FUNCTIONAL DESCRIPTION
4-1. ADDRESS COUNTER (AC)
4-2. DISPLAY DATA RAM (DDRAM)
The AC stores the address of the data being written to and from DDRAM or CGRAM. The
AC increments by 1 (overflows from 27H to 40H and from 67H to 00H) or decrements by
1 (underflows from 40H to 27H and from 00H to 67H) after each DDRAM access. The
AC increments by 1 (overflows from 3FH to 00H) or decrements by 1 (underflows from
00H to 3FH) after each CGRAM access. When addressing DDRAM, the value in the AC
also represents the cursor position.
The DDRAM stores the character code of each character being displayed on the VFD.
Valid DDRAM addresses are 00H to 27H and 40H to 67H. DDRAM not being used for
display characters can be used as general purpose RAM. The tables below show the
relationship between the DDRAM address and the character position on the VFD before
and after a display shift (with the number of display lines set to 2).
Relationship before a display shift (non-shifted):
Relationship after a display shift to the left:
Relationship after a display shift to the right:
1 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13
2 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53
1 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14
2 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54
1 27 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12
2 67 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52
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M0220SD-202SDAR1