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參數(shù)資料
| 型號： | SCD5584A |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 8-Character 5 x 5 Dot Matrix Serial Input Dot Addressable Intelligent Display |
| 中文描述： | 8個字符的5 × 5點陣串行輸入點可尋址智能顯示 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大小： | 437K |
| 代理商： | SCD5584A |
2000 In
fi
neon Technologies Corp.
Optoelectronics Division
San Jose, CA
www.in
fi
neon.com/opto
1-888-In
fi
neon (1-888-463-4636)
OSRAM Opto Semiconductors GmbH & Co. OHG
Regensburg, Germany
www.osram-os.com
+49-941-202-7178
SCD5580/1/2/3/4 A
8
March 23, 2000-18
Table 2. Load Character Address
Table 3. Load Column Data
The user can activate four Control functions. These include:
LED Brightness Level, Lamp Test, IC Power Down, or Display
Clear. OPCODEs and five bit words are used to initiate these
functions. The OPCODEs and Control Words for the Character
Address and Loading Column Data are shown in Tables 2 and 3.
The user can select seven specific LED brightness levels,
Table 4. These brightness levels (in percentages of full bright-
ness of the display) include: 100% (F0
HEX
), 53% (F1
HEX
), 40%
(F2
HEX
), 27% (F3
HEX
), 20% (F4
HEX
), 13% (F5
HEX
), and 6.6%
(F6
HEX
). The brightness levels are controlled by changing the
duty factor of the row strobe pulse.
The SCD558XA offers a unique Display Power Down feature
which reduces
I
CC
to less than 50
μ
A. When FF
HEX
is loaded,
as shown in Table 5, the display is set to 0% brightness and the
internal multiplex clock is stopped. When in the Power Down
mode data may still be written into the RAM. The display is
reactivated by loading a new Brightness Level Control Word
into the display.
Figure 9. Row and Column Location
Op code
D7 D6 D5
Character Address
D4 D3 D2 D1 D0
Hex
Operation
Load
1
0
1
0
0
0
0
0
A0
Character 0
1
0
1
0
0
0
0
1
A1
Character 1
1
0
1
0
0
0
1
0
A2
Character 2
1
0
1
0
0
0
1
1
A3
Character 3
1
0
1
0
0
1
0
0
A4
Character 4
1
0
1
0
0
1
0
1
A5
Character 5
1
0
1
0
0
1
1
0
A6
Character 6
1
0
1
0
0
1
1
1
A7
Character 7
Op code
D7 D6 D5
Column Data
D4 D3 D2 D1 D0
Operation Load
0
0
0
C0 C1 C2 C3 C4
Row 0
0
0
1
C0 C1 C2 C3 C4
Row 1
0
1
0
C0 C1 C2 C3 C4
Row 2
0
1
1
C0 C1 C2 C3 C4
Row 3
1
0
0
C0 C1 C2 C3 C4
Row 4
off LED
on LED
Row 0
Row 1
Row 2
Row 3
Row 4
0 1 2 3 4
Columns
Previously
“
on
”
LED
Table 4. Display Brightness
Table 5. Power Down
The Lamp Test is enabled by loading F8
HEX
, Table 6, into the
serial shift register. This Control Word sets all of the LEDs to a
53% brightness level. Operation of the Lamp Test has no affect
on the RAM and is cleared by loading a Brightness Control Word.
Table 6. Lamp Test
The Software Clear (C0
HEX
), given in Table 7, clears the
Address Register and the RAM. The display is blanked and the
Character Address Register will be set to Character 0. The
internal counter and the Control Word Register are unaffected.
The Software Clear will remain active until the next data input
cycle is initiated.
Table 7. Software Clear
Op code
D7 D6 D5
Control Word
D4 D3 D2 D1 D0
Hex
Operation
Level
1
1
1
1
0
0
0
0
F0
100%
1
1
1
1
0
0
0
1
F1
53%
1
1
1
1
0
0
1
0
F2
40%
1
1
1
1
0
0
1
1
F3
27%
1
1
1
1
0
1
0
0
F4
20%
1
1
1
1
0
1
0
1
F5
13%
1
1
1
1
0
1
1
0
F6
6.6%
Op code
D7 D6 D5
Control Word
D4 D3 D2 D1 D0
Hex
Operation
Level
1
1
1
1
1
1
1
1
FF
0%
brightness
Op code
D7 D6 D5
Control Word
D4 D3 D2 D1 D0
Hex
Operation
Level
1
1
1
1
0
B
B
B
Lamp Test
(OFF)
1
1
1
1
1
0
0
0
F8
Lamp Test
(ON)
Op code
D7 D6 D5
Control Word
D4 D3 D2 D1 D0
Hex
Operation
Level
1
1
0
0
0
0
0
0
C0
CLEAR
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