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Specifications
1.Electronic Technology Experiment Device2.12864 LCD Screen
vocational training equipment, 12864 LCD Screen
Product introduction:
12864 dot matrix LCD screen can display 32 x 4 character /16 x 4 Chinese characters, shown on the 4 line, blue and white font, 5V DC power supply, with Chinese font, with backlight, driving chip ST7920
Technical parameters:
Low supplyvoltage(VDD: +3.0 - +5.5 V)
Display Resolution: 128 × 64points
Built-inChinese character,providing819216 × 16dot matrix Chinese(Simplified and Traditionaloptional)
Built12816 × 8dot matrix character
2MHZ clock frequency
Display mode: STN,Transflective and positive
Drive: 1/32DUTY, 1/5BIAS
Viewing direction:6:00
Backlight mode:sidebrightwhite LED, apower consumption of onlyordinaryLED1/5-1/10
Communication:Serial,ParallelOptional
Built-inDC-DC convertercircuit, no externalvacuum
Nochip select signal,simplifyingsoftware design
Operating temperature: 0 °C - +55 °C,Storage temperature: -20 °C - +60 °C
Pin Description:
Pin No. |
Symbol |
Description |
1 |
VSS |
Ground |
2 |
VDD |
Supply voltage for logic(+5V) |
3 |
V0 |
Input for adjusting the LCD contrast |
4 |
RS |
H:Data signal,L:Instruction singnal |
5 |
R/W |
H:Read mode,L:Write mode |
6 |
E |
It is the clock latch signal input |
7 |
DB0 |
Data bit 0 |
8 |
DB1 |
Data bit 1 |
9 |
DB2 |
Data bit 2 |
10 |
DB3 |
Data bit 3 |
11 |
DB4 |
Data bit 4 |
12 |
DB5 |
Data bit 5 |
13 |
DB6 |
Data bit 6 |
14 |
DB7 |
Data bit 7 |
15 |
PSB |
Serial /Parallel selection;H:Parallel , L:Serial |
16 |
NC |
Not connection |
17 |
/RST |
RST,Low level is valid |
18 |
VOUT |
Voltage doubleroutput pin |
19 |
BLA |
LED Back light anode(+5V) |
20 |
BLK |
LED Back light cathode(0v) |
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