NHD-0420H1Z-FL-GBW Newhaven Display, NHD-0420H1Z-FL-GBW Datasheet - Page 12

• Manufacturer Part Number: NHD-0420H1Z-FL-GBW
• Description: LCD MOD CHAR 4X20 Y/G TRANSFL
• Manufacturer: Newhaven Display

Specifications of NHD-0420H1Z-FL-GBW

• Display Type: STN - Super-Twisted Nematic
• Display Mode: Transflective
• Number Of Digits/alpha: 80
• Outline L X W X H: 79.00mm x 36.00mm x 13.00mm
• Viewing Area: 60.00mm L x 28.00mm W
• Backlight: LED - Yellow/Green
• Display Format: 20 x 4
• Character Size: 5.15mm H x 2.35mm W
• Character Format: 5 x 8 Dots
• Voltage - Supply: 5.0V
• Dot Size: 0.43mm W x 0.60mm H
• Operating Temperature: -20°C ~ 70°C
• Character Count X Line: 20 x 4
• Module Size (w X H X T): 79 mm x 36 mm x 13 mm
• Fluid Type: STN
• Background Color: Gray
• Voltage Rating: 5 V
• Operating Temperature Range: - 20 C to + 70 C
• Backlight Type: LED Yellow / Green
• Interface: Parallel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Write binary 8-bit data to DDRAM/CGRAM.
The selection of RAM from DDRAM, and CGRAM, is set by the previous address set instruction (DDRAM
address set, CGRAM address set).
RAM set instruction can also determine the AC direction to RAM.
After write operation. The address is automatically increased/decreased by 1, according to the entry mode.
Read binary 8-bit data from DDRAM/CGRAM.
is not performed before this instruction, the data that has been read first is invalid, as the direction of AC is not
yet determined. If RAM data is read several times without RAM address instructions set before, read operation,
the correct RAM data can be obtained from the second. But the first data would be incorrect, as there is no
time margin to transfer RAM data.
instruction, it also transfers RAM data to output data register.
mode.
NOTE: In case of RAM write operation, AC is increased/decreased by 1 as in read operation.
instruction.
12.Display character address code:
00 01 02 03 04 05
40 41 42 43 44 45
14 15 16 17 18
54 55 56 57 58
1
11) Read data from RAM
The selection of RAM is set by the previous address set instruction. If the address set instruction of RAM
In case of DDRAM read operation, cursor shift instruction plays the same role as DDRAM address set
After read operation, address counter is automatically increased/decreased by 1 according to the entry
After CGRAM read operation, display shift may not be executed correctly.
RS
At this time, AC indicates next address position, but only the previous data can be read by the read
1
1
2
3
R/W
0
1
4
5
DB7
D7
D7
19 1A 1B 1C 1D 1E
59 5A 5B 5C 5D 5E
6
06
46
7
DB6
D6
D6
07
47
8
08
48
9
DB5
D5
D5
10
09
49
0A
4A
11
DB4
D4
D4
0B
4B
12
1F
5F
0C
4C
13
20
60
DB3
D3
D3
0D
4D
14
21
61
0E 0F 10 11 12 13
4E 4F 50 51 52 53
15
22
62
DB2
D2
D2
16 17 18 19 20
23 24 25 26 27
63 64 65 66 67
DB1
D1
D1
DB0
D0
D0