SCD 5580 OSRAM Opto Semiconductors Inc, SCD 5580 Datasheet - Page 8

• Manufacturer Part Number: SCD 5580
• Manufacturer: OSRAM Opto Semiconductors Inc

Specifications of SCD 5580

• Display Type: Dot Matrix
• Emitting Color: Red
• Number Of Digits: 8
• Digit Size (in): .145in
• Viewing Area Height (mm): 3.68mm
• Viewing Area Length (mm): 2.54mm
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Operating Temp Range: -40C to 85C
• Mounting: Through Hole
• Pin Count: 24
• Total Thickness (mm): 5.08mm
• Opto Display Type: Panel
• Pattern Type: Dot Matrix
• Lead Free Status / RoHS Status: Compliant

Figure 11. Row strobing
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 Charac-
ter Address and Loading Column Data are shown in Tables 2
and 3.
Table 2. Load character address
Table 3. Load column data
Figure 10. Row and column location
D7 D6 D5 D4 D3 D2 D1 D0
1
1
1
1
1
1
1
1
D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
0
1
ROW LOAD
Row 0
Row 1
Row 2
Row 3
Row 4
Opcode
Opcode
0
0
0
0
0
0
0
0
0
0
1
1
0
0 1 2 3 4
Columns
1
1
1
1
1
1
1
1
0
1
0
1
0
Row 0
Row 1
Row 2
Row 3
Row 4
0
0
0
0
0
0
0
0
C0 C1 C2 C3 C4 Row 0
C0 C1 C2 C3 C4 Row 1
C0 C1 C2 C3 C4 Row 2
C0 C1 C2 C3 C4 Row 3
C0 C1 C2 C3 C4 Row 4
Character Address
LOAD ROW 0
0 1 2 3 4
0
0
0
0
0
0
0
0
Columns
Column Data
off LED
on LED
Previously “on” LED
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
Row 0
Row 1
Row 2
Row 3
Row 4
0
1
0
1
0
1
0
1
LOAD ROW 1
0 1 2 3 4
A0
A1
A2
A3
A4
A5
A6
A7
Columns
Operation Load
Operation
Load
Character 0
Character 1
Character 2
Character 3
Character 4
Character 5
Character 6
Character 7
Row 0
Row 1
Row 2
Row 3
Row 4
LOAD ROW 2
2–8
0 1 2 3 4
Columns
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
40% (F2
6.6% (F6
ing the duty factor of the row strobe pulse.
Table 4. Display brightness
The SCD558X offers a unique Display Power Down feature
which reduces I
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 dis-
play is reactivated by loading a new Brightness Level Control
Word into the display.
Table 5. Power down
The Lamp Test is enabled by loading F8
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.
D7 D6 D5 D4 D3 D2 D1 D0
1
1
1
1
1
1
1
D7 D6 D5 D4 D3 D2 D1 D0
1
Opcode
Opcode
1
1
1
1
1
1
1
1
HEX
HEX
Row 0
Row 1
Row 2
Row 3
Row 4
1
1
1
1
1
1
1
1
), 27% (F3
). The brightness levels are controlled by chang-
CC
LOAD ROW 3
1
1
1
1
1
1
1
1
0 1 2 3 4
to less than 50 A. When FF
Columns
0
0
0
0
0
0
0
1
Control Word
Control Word
HEX
), 20% (F4
0
0
0
0
1
1
1
1
Row 0
Row 1
Row 2
Row 3
Row 4
0
0
1
1
0
0
1
1
SCD5580/5581/5582/5583/5584
LOAD ROW 4
HEX
0
1
0
1
0
1
0
1
0 1 2 3 4
HEX
Columns
HEX
), 13% (F5
), 53% (F1
Hex
F0
F1
F2
F3
A4
F5
F6
Hex Operation
FF
, Table 6, into the
HEX
Operation
Level
100%
53%
40%
27%
20%
13%
6.6%
0%
brightness
is loaded,
HEX
HEX
), and
),