SCD55102A OSRAM Opto Semiconductors Inc, SCD55102A Datasheet - Page 12

• Manufacturer Part Number: SCD55102A
• Description: LED Displays 5x5 Super Red 0.145 , 10-CHARACTER
• Manufacturer: OSRAM Opto Semiconductors Inc
• Series: Intelligent Display®r

Specifications of SCD55102A

• Display Type: Dot Matrix
• Emitting Color: Hi-Eff. Red
• Number Of Digits: 10
• Digit Size (in): .145in
• Viewing Area Height (mm): 3.68mm
• Viewing Area Length (mm): 2.03mm
• 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: 10
• Total Thickness (mm): 5.08mm
• Opto Display Type: Panel
• Pattern Type: Dot Matrix
• Millicandela Rating: 237µcd
• Size / Dimension: 1.50" L x 0.39" W x 0.20" H (38.10mm x 10.00mm x 5.08mm)
• Color: Red
• Configuration: 5 x 5
• Character Size: 0.145 in
• Illumination Color: High Efficiency Red
• Wavelength: 630 nm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Luminous Intensity: 237 ucd
• Viewing Area (w X H): 2.03 mm x 3.68 mm
• Lead Free Status / RoHS Status: Compliant
• Voltage - Forward (vf) Typ: -
• Internal Connection: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q68100A0990

Additional contrast enhancement is gained by shading the displays. Plastic band-pass filters with built-in louvers offer the next step up in
contrast improvement. Plastic filters can be improved further with anti-reflective coatings to reduce glare. The trade-off is fuzzy characters.
Mounting the filters close to the display reduces this effect. Take care not to overheat the plastic filter by allowing for proper air flow.
Optimal filter enhancements are gained by using circular polarized, anti-reflective, band-pass filters. The circular polarizing further
enhances contrast by reducing the light that travels through the filter and reflects back off the display to less than 1%.
Several filter manufacturers supply quality filter materials. Some of them are: Panelgraphic Corporation, W. Caldwell, NJ; SGL Homalite,
Wilmington, DE; 3M Company, Visual Products Division, St. Paul, MN; Polaroid Corporation, Polarizer Division, Cambridge, MA; Marks
Polarized Corporation, Deer Park, NY, Hoya Optics, Inc., Fremont, CA.
One last note on mounting filters: recessing displays and bezel assemblies is an inexpensive way to provide a shading effect in overhead
lighting situations. Several Bezel manufacturers are: R.M.F. Products, Batavia, IL; Nobex Components, Griffith Plastic Corp., Burlingame,
CA; Photo Chemical Products of California, Santa Monica, CA; I.E.E.–Atlas, Van Nuys, CA.
Microprocessor Interface
The microprocessor interface is through the serial port, SPI port or one out of eight data bits on the eight bit parallel port and also control
lines SDCLK and LOAD.
Power Up Sequence
Upon power up display will come on at random. Thus the display should be reset at power-up. The reset will set the Address Register to
Digit 0, User RAM is set to 0 (display blank) the Control Word is set to 0 (100% brightness with Lamp Test off) and the internal counters are
reset.
SCD5510XA Interface with Siemens/Intel 8031 Microprocessor
2008-07-22
V
CC
18
19
20
1
9
SCD55100A, SCD55101A, SCD55102A, SCD55103A, SCD55104A
XTAL2
XTAL1
RST
P1.0
8031
U1
V
CC
40
P3.0
P3.1
P3.6
P0.0
10
11
16
39
28
SD
CLK
1
27
DATA
LOAD
2
V
CC
23
V
6
CC
Master
20
SCD
9
19
12
13
16
15
14
28
SD
CLK
1
27
DATA
LOAD
2
23
6
20
Slave
SCD
9
19
16
13
15
14
+
22 µF
TAN
0.01 µF
IDCD5222