SCF 5741 OSRAM Opto Semiconductors Inc, SCF 5741 Datasheet - Page 10

• Manufacturer Part Number: SCF 5741
• Manufacturer: OSRAM Opto Semiconductors Inc

Specifications of SCF 5741

• Display Type: Dot Matrix
• Emitting Color: Yellow
• Number Of Digits: 4
• Digit Size (in): .18in
• Viewing Area Height (mm): 4.57mm
• Viewing Area Length (mm): 2.54mm
• Package Type: Panel
• 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: 22
• Total Thickness (mm): 5.08mm
• Opto Display Type: Panel
• Pattern Type: Dot Matrix
• Lead Free Status / RoHS Status: Compliant

Load Character Address
Op code
D7 D6 D5
1
1
1
1
Load Column Data
Op code
D7 D6 D5
0
0
0
0
0
0
0
The user can select eight specific LED brightness levels (Table
„Display Brightness“ (page 10)) by changing the peak current driv-
ing the LEDs. The peak current is varied by varying the ON time of
the row drivers. Note that data line 3 is low (logic 0).
If dimming is required with finer control between 12.5% brightness
and 0.0% brightness, data line 3 can be set high (logic 1). The
12.5% peak current is now the brightness reference (100%-E8) for
further dimming and as shown in Table “Display Brightness“
(page 10) eight levels of dimming are provided. For example the
hex code EC in Table “Display Brightness“ (page 10) will provide a
brightness level 29% lower than the 12.5% brightness level.
Display Brightness
Op code
D7 D6 D5
1
1
1
1
1
1
1
1
2006-03-30
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Character Address
D4 D3
0
0
0
0
Column Data
D4 D3
C0 C1
C0 C1
C0 C1
C0 C1
C0 C1
C0 C1
C0 C1
Control Word
D4 D3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D2
0
0
0
0
D2
C2
C2
C2
C2
C2
C2
C2
D2
0
0
0
0
1
1
1
1
SCE5740, SCE5741, SCE5742, SCE5743, SCE5744, SCE5745
D1
0
0
1
1
D1
C3
C3
C3
C3
C3
C3
C3
D1
0
0
1
1
0
0
1
1
D0
0
1
0
1
D0
C4
C4
C4
C4
C4
C4
C4
D0
0
1
0
1
0
1
0
1
Hex
A0
A1
A2
A3
Operation Load
Row 0
Row 1
Row 2
Row 3
Row 4
Row 5
Row 6
Hex
E0
E1
E2
E3
E4
E5
E6
E7
Operation
Load
Character 0
Character 1
Character 2
Character 3
Operation
Level
100%
53%
40%
27%
20%
13%
6.6%
0.0%
10
The SCE574X offers a unique Display Power Down feature which
reduces I
Table „Power Down“ (page 10), 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.
Power Down
Op code
D7 D6 D5
1
The Software Clear (C0
(page 10), clears the Address Register and the RAM. The display
is blanked and the Character Address Register will be set to Char-
acter 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.
Software Clear
Op code
D7 D6 D5
1
1
1
1
0
CC
to less than 50 µA. When EF
Control Word
D4 D3
0
Control Word
D4 D3
0
1
0
HEX
D2
1
D2
0
), given in Table „Software Clear“
D1
1
D1
0
D0
1
D0
0
HEX
is loaded, as shown in
Hex
EF
Hex
C0
Operation
Level
0%
brightness
Operation
Level
CLEAR