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參數(shù)資料
| 型號(hào)： | IPD2131 |
| 元件分類： | 顯示用LED |
| 英文描述： | 5X7 DOT MATRIX DISPLAY, YELLOW, 4.8 mm |
| 封裝： | ROHS COMPLIANT PACKAGE-32 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大小： | 960K |
| 代理商： | IPD2131 |
IPD2131, IPD2132, IPD2133
2006-04-04
13
Clear Function (see Figure Control Word Data Definition“
Control Word bit, D7 clears the character RAM to 20 hex and the
flash RAM to all zeroes. The RAMs are cleared within three clock
cycles (110 s minimum, using the internal clock) when D7 is set
to 1. During the clear time the display must not be accessed.
When the clear function is finished, bit 7 of the Control Word RAM
will be reset to a “0”.
Control Word Data Definition
Reset Function
The display should be reset on power up of the display
(RST=LOW). When the display is reset, the Character RAM, Flash
RAM, and Control Word Register are cleared.
The display's internal counters are reset. Reset cycle takes three
clock cycles (110 s minimum using the internal clock). The dis-
play must not be accessed during this time.
To synchronize the flashing and blinking of multiple displays, it is
necessary for the display to use a common clock source and reset
all the displays at the same time to start the internal counters at
the same place.
While RST is low, the display must not be accessed by RD nor
WR.
Key
C
Clear Function
ST
Self test
BL
Blink function
FL
Flash function
Br
Brightness control
IDCW5161
Function
Blink
Self Test
Function
Brightness Control
D7
D6
D5
D4
D3
D2
D1
D0
D1 D0 Brightness Control
100% Brightness
00
80% Brightness
01
1
53% Brightness
0
1
40% Brightness
1
Disabled
Flash Function
D3
0
Enabled
1
Enabled (overrides Flash Function)
Disabled
Blink Function
D4
1
0
Normal Operation (X = bit ignored)
R
D5
X
Run Self Test, R = Test Result (1 = pass, 0 = fail)
Self Test
Clear Flash RAM & Character RAM (Character RAM = 20 Hex)
Normal Operation
0
1
Clear Function
D7
Clear
Flash
Function
D2
0
27% Brightness
Blank Display
11
1
0
10
1
0
20% Brightness
13% Brightness
0
1
D6
Clear Function
CE
WR
FL
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
Operation
0
1
0
X
0
1
X
Clear disabled
Clear user RAM, flash RAM
and display
X=don’t care
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