Q68100A1371 View Datasheet(PDF) - OSRAM GmbH
Part Name
Description
View to exact match
Q68100A1371 Datasheet PDF : 16 Pages
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SCE5740, SCE5741, SCE5742, SCE5743, SCE5744, SCE5745
Load Character Address
Op code
Character Address
D7 D6 D5 D4 D3 D2 D1 D0
101 0 0 0 0 0
101 0 0 0 0 1
101 0 0 0 1 0
101 0 0 0 1 1
Load Column Data
Op code
Column Data
D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 C0 C1 C2 C3 C4
0 0 0 C0 C1 C2 C3 C4
0 0 0 C0 C1 C2 C3 C4
0 0 0 C0 C1 C2 C3 C4
0 0 0 C0 C1 C2 C3 C4
0 0 0 C0 C1 C2 C3 C4
0 0 0 C0 C1 C2 C3 C4
Hex Operation
Load
A0 Character 0
A1 Character 1
A2 Character 2
A3 Character 3
Operation Load
Row 0
Row 1
Row 2
Row 3
Row 4
Row 5
Row 6
The SCE574X offers a unique Display Power Down feature which
reduces ICC to less than 50 µA. When EFHEX is loaded, as shown in
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
Control Word
D7 D6 D5 D4 D3 D2 D1 D0
Hex Operation
Level
111 0 1 1 1 1
EF 0%
brightness
The Software Clear (C0HEX), given in Table „Software Clear“
(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
Control Word
D7 D6 D5 D4 D3 D2 D1 D0
Hex Operation
Level
110 0 0 0 0 0
C0 CLEAR
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
Control Word
D7 D6 D5 D4 D3 D2 D1 D0
111 0 0 0 0 0
111 0 0 0 0 1
111 0 0 0 1 0
111 0 0 0 1 1
111 0 0 1 0 0
111 0 0 1 0 1
111 0 0 1 1 0
111 0 0 1 1 1
Hex Operation
Level
E0 100%
E1 53%
E2 40%
E3 27%
E4 20%
E5 13%
E6 6.6%
E7 0.0%
2006-03-30
10
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