M0120SD-201MDBR1-1 Newhaven Display, M0120SD-201MDBR1-1 Datasheet - Page 8

• Manufacturer Part Number: M0120SD-201MDBR1-1
• Description: MODULE VF CHAR 1X20 4.9MM
• Manufacturer: Newhaven Display

Specifications of M0120SD-201MDBR1-1

• Outline L X W X H: 150.00mm x 32.00mm x 25.50mm
• Viewing Area: 92.70mm L x 4.90mm W
• Display Format: 20 x 1
• Display Type: Character
• Format: 5 x 7 Dots
• Voltage - Supply: 4.5 V ~ 5.5 V
• Character Size: 4.90mm H x 3.40mm W
• Operating Temperature: -20°C ~ 70°C
• Product: Character Display Modules
• Character Count X Line: 20 x 1
• Module Size (w X H X T): 150 mm x 32 mm x 25.5 mm
• Voltage Rating: 4.5 V to 5.5 V
• Operating Temperature Range: - 20 C to + 70 C
• Dot Format: 5 x 7
• Viewing Area (w X H): 92.7 mm x 4.9 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Number Of Dots: -
• Lead Free Status / Rohs Status: Details

Table-8 Register Selection
5.1.1 Busy Flag (BF)
5.1.2 Address Counter (ACC)
5.1.3 Display Data RAM (DD-RAM)
5.1.4 Character Generator ROM (CG-ROM)
5.1.5 Character Generator RAM (CG-RAM)
1
RS
Table-9 Relation between Digit Position and DD-RAM data
0
0
1
1
st
The address counter (ACC) assigns addresses to both DD-RAM and CG-RAM. When an address of
an instruction is written into the IR, the address information is sent from the IR to the ACC. Selection
of either DD-RAM or CG-RAM is also determined concurrently by the instruction. After writing into
(reading from) DD-RAM or CG-RAM, the ACC is automatically incremented by 1 (decremented by
1). The ACC contents are then output to Db0 to Db6 when RS =0 and R/W=1 (See Table-8).
Row
Display data RAM (DD-RAM) stores display data represented in 8-bit character codes.
The area in DD-RAM that is not used for display can be used as general data RAM.
The character generator ROM (CG-ROM) generates character patterns of 5x7 dots from 8-bit
The character fonts are shown on the following page. The character codes 00H to13H are allocated
In the character generator RAM (CG-RAM), the user can
rewrite character patterns by program.
For 5 7 dots and cursor, eight character patterns can be
written. Write into DD-RAM the character codes at the
addresses shown as the left column of Table-10 to show
the character patterns stored in CG-RAM.
See Table-11 for the relationship between CG-RAM
addresses and data and display patterns and refer to
Fig-10 for dot assignment of VFD.
Areas that are not used for display can be used as general data RAM
When the busy flag is 1, the controller is in the internal operation mode, and the next
The next instruction must be written after ensuring that the busy flag is 0.
See Table-9 for the relationships between DD-RAM addresses and positions on the VFD
to the CG-RAM.
character codes (table-10). It can generate 240 kinds of 5x7 dots character patterns.
instruction will not be accepted. When RS =0 and R/W=1 (Table-8), the busy flag is
output to DB7.
M68
R/W
0
1
0
1
Left End
00H
/RD
1
0
1
0
i80
/WR
2
01H
0
1
0
1
nd
Column
IR write as an internal operation (display clear, ect.)
Read busy flag (DB7) and address counter (DB0 to DB6)
DR write as an internal operation (DR to DD-RAM or CG-RAM)
DR read as an internal operation (DD-RAM or CG-RAM to DR)
3
02H
rd
column
- - - - - - - - - - -
- - - - - - - - -- - -
Operation
15
1
6
11
16
21
26
31
0EH
th
Column Right End
2
7
12
17
22
27
32
3
8
13
18
23
28
33
4
9
14
19
24
29
34
13H
5
10
20
25
30
35
15