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参数资料
| 型号： | SCE5744Q |
| 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, SIP-7 |
| 文件页数： | 5/15页 |
| 文件大小： | 589K |
| 代理商： | SCE5744Q |
2000 Inneon Technologies Corp. Optoelectronics Division San Jose, CA
SCE5740/1/2/3/4/5
www.inneon.com/opto 1-888-Inneon (1-888-463-4636)
OSRAM Opto Semiconductors GmbH & Co. OHG Regensburg, Germany
www.osram-os.com +49-941-202-7178
13
March 28, 2000-10
Figure 14. Cascading Multiple Displays using only the SCE574x.
Multiple displays can be cascaded using the CLK SEL and CLK I/O pins (Figure 14). The display designated as the MasterClock
source should have its CLK SEL pin tied high and the slaves should have their CLK SEL pins tied low. All CLK I/O pins should be
tied together. One display CLK I/O can drive 15 slave CLK I/Os. Use RST to synchronize all display counters.
RST
CLK I/O
CLK SEL
DATA
SDCLK
LOAD
14 more displays
in between
RST
CLK I/O
CLK SEL
DATA SDCLK
LOAD
Chip
Address
Decoder
0
15
Address Decode 1–14
VCC
RST
DATA
SDCLK
A0
A1
A2
A3
LD
Intelligent Display
CE
Loading Data into the Display
Use following procedure to load data into the display:
1. Power up the display.
2. Bring RST low (600 ns duration minimum) to clear the Multi-
plex Counter, Address Register, Control Word
Register, User Ram and Data Register. The display will be
blank. Display brightness is set to 100%.
3. If a different brightness is desired, load the proper bright-
ness opcode into the Control Word Register.
4. Load the Digit Address into the display.
5. Load display row and column data for the selected digit.
6. Repeat steps 4 and 5 for all digits.
Data Contents for the Word “ABCD”
Step
D7 D6
D5
D4 D3
D2
D1
D0
Function
A
B (optional)
1
0
1
00
0
00
0
CLEAR
100% BRIGHTNESS
1
2
3
4
5
6
7
8
10
1
00
0
00
0
100
01
0
1
0
10
0
1
11
1
0
001
1
0
001
10
0
1
DIGIT D0 SELECT
ROW 0 (A)
ROW 1 (A)
ROW 2 (A)
ROW 3 (A)
ROW 4 (A)
ROW 5 (A)
ROW 6 (A)
9
10
11
12
13
14
15
16
1
0
1
00
0
001
1
111
1
0
001
10
0
1
0
10
0
1
10
0
1
11
1
DIGIT D1 SELECT
ROW 0 (B)
ROW 1 (B)
ROW 2 (B)
ROW 3 (B)
ROW 4 (B)
ROW 5 (B)
ROW 6 (B)
17
18
19
20
21
22
23
24
1
0
1
0
00
0
1
0
111
0
1
000
10
0
10
0
1
0
000
01
0
00
1
DIGIT D2 SELECT
ROW 0 (C)
ROW 1 (C)
ROW 2 (C)
ROW 3 (C)
ROW 4 (C)
ROW 5 (C)
ROW 6 (C)
25
26
27
28
29
30
31
32
1
0
1
0
011
11
1
0
10
0
1
0
001
10
0
1
10
0
1
0
001
1
110
DIGIT D3 SELECT
ROW 0 (D)
ROW 1 (D)
ROW 2 (D)
ROW 3 (D)
ROW 4 (D)
ROW 5 (D)
ROW 6 (D)
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