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参数资料
| 型号： | SCE5784 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 显示用LED |
| 英文描述： | 5X7 DOT MATRIX DISPLAY, HIGH EFFICIENCY GREEN, 4.57 mm |
| 封装： | PLASTIC, DIP-26 |
| 文件页数： | 14/14页 |
| 文件大小： | 208K |
| 代理商： | SCE5784 |
2001 OSRAM Opto Semiconductors Inc. San Jose, CA
SCE5780/1/2/3/4/5/6
www.inneon.com/opto 408-456-4000
OSRAM Opto Semiconductors GmbH & Co. OHG Regensburg, Germany
www.osram-os.com +49-941-202-7178
9
August 1, 2001-18
Table 2. Load Character Address
Table 3. Load Column Data
The user can activate four Control functions. These include:
LED Brightness Level, IC Power Down, Prescaler, or Display
Clear. OPCODEs and six 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 eight specic LED brightness levels, Tables
4 and 5. Depending on how D3 is selected either one (1) for
maximum peak current or zero (0) for 12.5% of maximum peak
current in the control word per Table 4 and 5, the user can
select 16 specic LED brightness levels. These brightness lev-
els (in percentages of full brightness of the display) depending
on how the user selects D3 can be one (1) or zero (0) are as fol-
lows: 100% (E0HEX or E8HEX), 53% (E1HEX or E9HEX), 40%
(E2HEX or EAHEX), 27% (E3HEX or EBHEX), 20% (E4HEX or
ECHEX), 13% (E5HEX or EDHEX), and 6.6% (E6HEX or EEHEX),
0.0% (E7HEX or EFHEX). The brightness levels are controlled by
changing the duty factor of the row strobe pulse.
The SCE578X offers a unique Display Power Down feature
which reduces ICC to less than 150 A total. When EFHEX is
loaded (Table 6) the display is set to 0% brightness. 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.
Table 4. Display Brightness
Table 5. Display Brightness
Table 6. Power Down
Figure 9. Row and Column Locations for a Character “D”
Op code
D7 D6 D5
Character Address
D4 D3 D2 D1 D0
Hex
Operation
Load
1
0
1
0
A0
Character 0
1
0
1
0
1
A1
Character 1
1
0
1
0
1
0
A2
Character 2
1
0
1
0
1
A3
Character 3
1
0
1
0
1
0
A4
Character 4
1
0
1
0
1
0
1
A5
Character 5
1
0
1
0
1
0
A6
Character 6
1
0
1
0
1
A7
Character 7
Op code
D7 D6 D5
Column Data
D4 D3 D2 D1 D0
Operation Load
0
C0 C1 C2 C3 C4
Row 0
0
C0 C1 C2 C3 C4
Row 1
0
C0 C1 C2 C3 C4
Row 2
0
C0 C1 C2 C3 C4
Row 3
0
C0 C1 C2 C3 C4
Row 4
0
C0 C1 C2 C3 C4
Row 5
0
C0 C1 C2 C3 C4
Row 6
Op code
D7 D6 D5
Control Word
D4 D3 D2 D1 D0
Hex
Operation
Level
1
0
E0
100%
111
000
0
1
E1
53%
111
000
1
0
E2
40%
111
000
1
E3
27%
111
001
0
E4
20%
111
001
0
1
E5
13%
1
0
1
0
E6
6.6%
1
0
1
E7
0.0%
Op code
D7 D6 D5
Control Word
D4 D3 D2 D1 D0
Hex
Operation
Level
1
0
1
0
E8
100%
111
010
0
1
E9
53%
111
010
1
0
EA
40%
111
010
1
EB
27%
111
011
0
EC
20%
111
011
0
1
ED
13%
1
0
1
0
EE
6.6%
1
0
1
EF
0.0%
Op code
D7 D6 D5
Control Word
D4 D3 D2 D1 D0
Hex
Operation
Level
111
011
1
EF
0%
brightness
off LED
on LED
Row 0
Row 1
Row 2
Row 3
Row 4
Row 5
Row 6
Previously “on” LED
0 1 2 3 4
Columns
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