
2–1
FEATURES
Eight 0.145" (3.68 mm) 5x5 dot matrix char-
acters in red, yellow, high efciency red,
green, or high efciency green
Optimum display surface efciency
(display area to package ratio)
Low power–30% less power dissipation
than 5x7 format
High speed data input rate: 5 MHz
ROMless serial input, dot addressable dis-
play–ideal for user dened characters
Built-in decoders, multiplexers and LED
drivers
Readable from 6 feet (1.8 meters)
Wide viewing angle, X axis
±55°, Y axis ±65°
Attributes
– 200 bit RAM for user dened characters
– Eight dimming levels
– Power down mode (<250 mW)
– Hardware/software clear function
– Lamp test
Internal or external clock
End-stackable dual-in-line plastic package
3.3 V capability
STANDARD RED
SCD5580
YELLOW
SCD5581
HIGH EFFICIENCY RED
SCD5582
GREEN
SCD5583
HIGH EFFICIENCY GREEN
SCD5584
.145” 8-Character 5x5 Dot Matrix
Serial Input Dot Addressable Intelligent Display
Slimline
DESCRIPTION
The SCD5580 (Red), SCD5581 (Yellow), SCD5582 (HER), SCD5583
(Green) and SCD5584 (HEG) are eight digit dot addressable 5x5 matrix,
Serial Input, Intelligent Displays.
The eight 0.145" (3.68 mm) high digits are packaged in a rugged, high
quality optically transparent, standard 0.3" pin spacing 28 pin plastic
DIP.
The on-board CMOS has a 200 bit RAM, one bit associated with one
LED, each to generate User Dened Characters. Due to the reduced
LED count, power requirement and heat dissipation are reduced by
30%. Additionally in Power Down Mode quiescent current is <50
A.
The SCD558X is designed to work with the Serial port of most common
microprocessors. The multiplex Clock I/O (CLK I/O) and multiplex Clock
Select (CLK SEL) pins offer the user the capability to supply a high
speed external multiplex clock. This feature can minimize audio in-band
interference for portable communication equipment or eliminate the
visual synchronization effects found in high vibration environments such
as avionic equipment
Package Dimensions in inches (mm)
1. Dimension is at Seating Plane
2. Display matrix and pins centered on package outline.
3. Display matrix centered to pin array.
4. Tolerance: .XXX =
±.010 (.25)
1.500 max. (38.10)
0.145
(3.68)
.100
.187
.300 –.020
.100 –.010 typ.
1.300 ref.
Pin 1
Indicator
SIEMENS
SCD-558X
YYWW
Z
EIA date code
Intensity Code
Tol. non-cum.
0.160 –.02
0.200
(2.54)
(.47)
(5.08)
(33.02)
(2.54 –.25)
(7.62 –.51)
.394 –.006
(10.0 –.15)
(4.06 –.51)
.050
(1.27)
typ.
.012 (.30)
.020 (.51) typ.
Y
Hue Category
typ.
1.312 ref.
(33.32)
Seating Plane
1