HCMS-2921 Avago Technologies US Inc., HCMS-2921 Datasheet - Page 16
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HCMS-2921
Manufacturer Part Number
HCMS-2921
Description
LED DISPL 5X7 2X8CHAR 3.8MM YLW
Manufacturer
Avago Technologies US Inc.
Series
HCMS-29xxr
Datasheet
1.HCMS-2903.pdf
(16 pages)
Specifications of HCMS-2921
Millicandela Rating
*
Internal Connection
*
Size / Dimension
1.40" L x 0.78" W x 0.20" H (35.6mm x 19.8mm x 5.1mm)
Color
Yellow
Configuration
*
Voltage - Forward (vf) Typ
*
Package / Case
26-DIP
Display Type
Alphanumeric
Number Of Digits/alpha
16
Common Pin
*
Digit/alpha Size
0.15" (3.8mm)
Character Format
Dot Matrix
Character Size
3.81mm
Led Color
Yellow
Luminous Intensity
64µcd
No. Of Digits / Alpha
16
Display Area Width
35.56mm
Display Area Height
19.81mm
Emitting Color
Yellow
Number Of Digits
16
Digit Size (in)
.15in
Viewing Area Height (mm)
3.71mm
Viewing Area Length (mm)
2.11mm
Package Type
DIP
Operating Supply Voltage (min)
3V
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
28
Total Thickness (mm)
5.08mm
Opto Display Type
Panel
Pattern Type
Dot Matrix
Illumination Color
Yellow
Wavelength
583 nm
Operating Voltage
- 0.3 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
516-1178-5
Appendix E. Display Brightness
Two ways have been shown to control the brightness
of this LED display: setting the peak current and setting
the duty factor. Both values are set in Control Word 0.
To compute the resulting display brightness when both
PWM and peak current control are used, simply multi-
ply the two relative brightness factors. For example, if
Control Register 0 holds the word 1001101, the peak
current is 73% of full scale (BIT D
the PWM is set to 60% duty factor (BIT D
= H, BIT D
44% (.73 x .60 = .44) of full scale.
The temperature of the display will also affect the LED
brightness as shown in Figure 5.
Appendix F. Reference Material
Application Note 1027: Soldering LED Components
Application Note 1015: Contrast Enhancement Techniques
for LED Displays
For product information and a complete list of distributors, please go to our website:
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries.
Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved. Obsoletes 5989-3181EN
AV02-0699EN - September 18, 2007
1
= L, BIT D
0
= H). The resulting brightness is
5
= L, BIT D
3
= H, BIT D
4
= L) and
2
www.avagotech.com
Figure 5.
3.0
2.6
2.2
1.8
1.4
1.0
0.6
0.2
-55
GREEN
T
-35
A
AlGaAs
– AMBIENT TEMPERATURE – °C
HER/ORANGE
-15
YELLOW
5
25
45
65
85